Internal Hard Drive disappeared

I've been using a 2TB external HD for the last 6 weeks or so as my main startup drive. When I set it up, I wiped the internal drive, reformatted it with Snow Leopard, and partitioned a Boot Camp Windows partition. I'm backing up using a 500GB backup which for now is covering me just fine. All of my drives were accessible and worked fine.
But after the last big OS X update, neither my internal drive nor my Windows drive are showing up on my desktop. I thought it might just need to be repaired so I opened Disk Utility to erase and repair the drive and reset it all up. The icon for the internal disk shows up, but it's called Media, and I've never titled that disk setup as that.
The info at the bottom of that window is as follows:
*Disk Description:* Media
*Connection Type:* SATA
*Connection Type:* Internal
*Total Capacity:* 0 Bytes
*Write Status:* Read/Write
*S.M.A.R.T Status:* Not Supported
*Partition Map Scheme:* Unformatted
Under First Aid, all of the buttons are grayed out. No Verify Disk or Repair Disk. Under Erase, none of the buttons are available. Under Partition, it won't allow me to rename the disk, and the buttons are gray. I've tried using Disk Utility from both the startup drive Apps/Utilities folder and also from starting up using the System Install CD, and the options are the same, nonexistent.
I've been using Macs for 25 years and am not new to fixing problems, but this is a first for me. It took me a long time to trust starting up from an external drive, but the 2TB lure was just too much. However, I need to know that if something happens, I still have my internal drive to fall back on. And right now, I'm freaking out a little (on the inside). Help!!

Same issue. Latest OSX: 10.8.3
Connection using firewire 800 to external sata 2tb drive (using thunderbolt dongle) - the drive suddenly appears unformatted. I connect my drive which i've been using for weeks - suddenly this: "the disc you inserted was not readable by this computer - Initilize/Ignore/Eject"
Of course I choose 'ignore'. It's happened to me 3 times now. 2 times on my brand new imac (Processor 3.4 GHz Intel Core i7) and 1 time on the same spec iMac I have at the office which was actually a 4tb sata drive.
This is the 3rd drive which is now also completely in accessable to to me. When I run any form of disc recovery, the content is there - but the MAC OS believes it's a fresh drive and will not mount it! It shows in disc utility as a blank unformatted drive.
What is going on??? I can't keep loosing my data. How can a drive suddenly loose all it's intergral data/why is this happening?I am scared to connect any of my other back up sata drives should the mac os be corrupting them in some way. This is critical.
Apple please sort this out. Is it due to firewire 800 step down using the thunderbolt dongle?
Thanks
Frustrated Apple user (again!).

Similar Messages

Internal Hard Drives Disappeared, Finder Memory Problem

Hello Helpful Folks,
I recently installed an addional internal Hard Drive, and an additional 1GB SDRAM. This worked great for a day, but the next morning, after powering up, system was extremely sluggish, and after much deadline-induced impatient problem solving, has gone from bad to worse (system refuses to acknowledge existence of internal Hard Drives). I apologize in advance for the length of this post, but as
the devil is in the details, I figure too much info is better than not enough.
Following is a breakdown of my system: AS IT LAST WORKED; RECENT UPGRADES; and MY LAME ATTEMPTS AT PROBLEM SOLVING THAT HAVE MADE THINGS WORSE. Please don't interpret my all caps as shouting, just trying to organize this post for better clarity.
System is dedicated to Video Editing with FCP 3, running under OS 9.2.2. System is "off the Grid", i.e. no network, no internet, no printer, no gaming devices. System was purchased new in July 2001, by a friend. At one point I know this system had an Airport card, which was removed prior to my purchase in 2003. I can't remember what else it may have had installed in its history, but here's what it has now:
SYSTEM AS IT LAST WORKED:
**bold items are upgrades Original Owner or I installed with no apparent problems**
Power Mac G4 "Quicksilver" 2001
867 PowerPC G4, 256 L2, 2MB L3
-1 Stick "ValueRAM - KVR 133 x 64 C3/512" in PC 133 DIMM slot **
- "Virtual Memory" was turned off years ago due to conflict with FCP 3
-2 empty DIMM slots
-1 60 GB internal HD (Maxtor Ultra ATA/100), 1 partition, formatted HFS+, jumpered as "Master" on Internal ATA 2 ID=0 (which as I understand it is ATA/66 speed)
-1 Pioneer "Superdrive" DVD-R/W/CD-R/W on Internal ATA 0 ID=0
-NVIDIA GeForce2 MX with 32MB SDRAM in AGP Slot, feeding a 17" Apple Studio Display.
-PCI Display Card "formacGA7" - not attached to any external device, not sure what its intended purpose is.**
-3 Empty PCI Slots
-OEM Keyboard attached to Monitor's rear USB port.
-Microsoft 3 Button Wheel mouse with "IntelliEye" (wheel is 3rd Button) connected to Keyboard USB port (right side).**
-2 OEM FireWire (400) ports
-2 OEM USB (1) ports
Peripherals that have worked in various configurations with this system over the past 3 years:
-3 OWC Mercury Elite ("Oxford Chipset") Externally powered, External FireWire(400) 200GB Hard Drives, 1 partition each, formatted HFS+, daisy-chained to either of the FireWire ports.
-1 Canon GL1 MiniDV camera, attached either to the other FireWire port, or to the last drive in the chain, depending on my urgency/laziness factor. BTW, FCP 3 has worked flawlessly controlling this Cam for logging and Batch Capturing.
Applications on System Hard Drive that I have OEM CDs for:
-OS 9.2 - (I think I remember that OS X was removed from system due to conflicts shortly after original purchase)
-FCP 3
-DiskWarrior (version unknown, purchased from Alsoft in 2003)
-OWC Intech Hard Disk SpeedTools ver 3.5
Other CDs I have:
OEM CDs for Power Mac G4:
-Software Install, OS 9.2, CD vers 1
-Software Install, OS 10.0.4, CD vers 1
-Software Restore, OS 9.2 & 10.0.4 CDs vers 1, Discs 1-4 of 4.
-OEM Apple Hardware Test; Power Mac G4, SW vers 1.2.1
Applications on system Hard Drive that I don't have CDs for, that I rarely use, but I'd like to keep:
-After Effects 5.0
-QuickTime Player 6.0.2
-Toast Audio Extractor 1.1
-Toast Titanium 5.0.2
Applications on system Hard Drive I use if my wife is busy on our Windows XP machine:
-Photshop 6.0
-Microsoft Word & Excel
# of other Applications on System Hard Drive I either don't use or may be integral to the system: 260
# of Control Panels:
-Enabled: 34
-Disabled: 0
# of Extensions:
-Enabled: 174
-Disabled: 0
note: a number of the applications and extensions are for AOL, Quickbooks, Microsoft Money and the like, as well as other things I don't use (Airport, USB printers, Networking, etc.)
Smart things I did:
-Regularly made backup copies of my FCP projects to the external drives.
-Bought a copy of MacDrive so I can see what's on my External Drives on the XP machine.
-Printed out System Profile before I installed upgrades.
-Thoroughly searched this discussion board for and gathered as much info as I could before upgrading.
Dumb things I did:
-Made a copy, but not a clone, of my System Folder to one of the external drives when I first got it.
-Didn't keep any sort of separate log of what's on the External Drives.
-Never ran any sort of Disk Maintenance, even after one of the Externals crashed (DiskWarrior saved my butt on that).
-Ignored some of the advice on this discussion board.
Really dumb thing I did without even realizing it:
Captured all media for a rush job onto my internal system Hard Drive, as well as storing and using massive jpgs for the same job on that same drive...
Which led to painfully slow rendering times, and crashes caused by "Error: Out of Memory", which I interpreted as "Must buy more memory" and not "must make sure I'm not trying to edit media stored on system drive, especially with massive jpgs that I should reduce"
RECENT UPGRADES:
Here's what I did, and how I did it:
Turned off system, disconnected all External FireWire Devices, disconnected Monitor, opened case, touched various metal parts of case and power supply to discharge any Static, unplugged power cable.
-Installed 2 512MB sticks of "Lifetime" PC 133 SDRAM; total System RAM is now 1.5GB, all 3 DIMM slots now occupied.
-Installed 1 Maxtor "DiamondMax" Ultra ATA/133 100GB Hard Drive (8 MB buffer) as "Slave" (no jumper) in top of U-Carrier above System Hard Drive; attached to middle of original Apple ribbon cable, attached available power plug.
Taped spare jumper to inside of empty drive bay, noting origin and date. Did NOT push PMU button. Carefully closed case. Reconnected Monitor, did NOT reconnect any FireWire devices. Powered System on, but did NOT perform PRAM reset.
I don't remember the exact order of what happened next, but I think: System booted up normally, a window popped up saying a new drive had been found, would I like to intitialize it?, which I did as Mac OS extended, and then named. If I was instructed to restart, I did so, otherwise did not. Clicked on "about this Mac" and saw that it now showed 1.5GB RAM. I then went about moving Media/Render files off the System drive (and one of the Externals) onto the Internal Drive, with a combination of FCP's Media Manager, and dragging from the Finder. After files had copied, dragged Media/Render files from System Drive to Trash. Opened FCP project, had FCP re-link to new locations of missing files. Saved, closed, and re-opened project, set Capture/Scratch disc to new internal Drive. At some point I changed FCP's Memory Allocation from whatever it was to 512000KB Minimum, and 900000KB Prefered (and I hope I got all those zeroes right). Did NOT restart after changing Memory Allocation, unless a window popped up instructing me to do so, in which case I did. Re-opened my project, rendered a few thing at a noticeably increased speed, saved everything, emptied the Trash, shut everything down, and called it a night as it was 4:30 am.
A few hours later, I plugged the MiniDV and an External Drive into the FW ports and powered up the System. It was behaving extremely sluggishly. I would click on something, the pointer would turn into a wristwatch (sometimes with the minute-hand moving, sometimes not) and like an actual minute later, what I'd clicked on would open. All three drives were on the desktop, still had their files, and "About this Mac" still showed 1.5GB total Memory. So I powered down, disconnected the FW devices, waited a bit, and powered back up. Same sluggish response. I tried to open my FCP project file, and instead got a Window that said something to the effect of "The Application associated with this document could not be found". I think I tried to open FCP from the Applications folder on the System Drive and got the same message (I'd only had 3 hours sleep, no coffee, my client had died, and his family was coming for whatever I had in a few hours).
LAME ATTEMPTS AT PROBLEM SOLVING THAT HAVE MADE THINGS WORSE
Panic had set in, which never solves anything, so I don't remember what order I performed which tasks, between searching for clues in this forum, and convincing myself that that would be faster than trying to compose a question, waiting for a response, etc.
The first two things I did, and I can't remember which I did first (both from Keyboard Commands during Restart):
Rebuild Desktop
PRAM Reset
Neither of those solved the problem, so I continued.
I tried restarting without extensions.
I would get errors that said something like "Not Enough Memory to Open Finder".
I tried booting from Disc 1 of the Software Restore Disk, which only wanted to destroy my data.
I tried booting from the OS 10 disk, with the same result.
I was finally able to boot from the OS 9.2 Software Install Disk, and actually saw both internal drives on the desktop, and the 1.5GB RAM in About this Mac. I tried to allocate more memory to Finder, but was informed that "Cannot Perform Requested Operation. This operation requires versions above 8.0".
I think at this point I decided that I must have too many extensions, and started disabling ones I thought irrelevent to my cause (mostly anything that said "AOL", "Airport", "Ethernet", "Printer", "Modem", "Speakable", and a couple things called "Open TPT".
It gets worse. Then I decided to turn off some "unnecessary" things via the control panels, but somehow managed to disable the control panels themselves: AppleTalk, DialAssist, File Sharing, Modem, Mouse (as I saw that Microsoft Mouse was among the others), Remote Access, Speech, USB Printer Sharing, and possibly TCP/IP.
That certainly didn't help anything (though upon restarting from the OS 9.2 Disc I was able to see the extensions and control panels in their respective "Disabled" folders in the System Folder). But I still wasn't able to get more Memory to Finder.
So, I decided a few more PRAM resets might help, which succeeded in making both Internal Hard Drives disappear. I tried booting up from the DiskWarrior disc, but even the Mighty DiskWarrior couldn't find the drives. I performed the longer, in depth version of the Apple Hardware Tools tests, which reported that everything's fine (including the new RAM), but made no mention of the Hard Drives at all. The deadline having long passed, I shut the system down. I read through more posts and tech articles, etc.
I searched my External drives with MacDrive on my XP, and found the drive that has the copy of my System Folder (which shows all extensions and control panels as enabled); not sure if the Quicksilver will boot from that, I don't know what the Keyboard command for booting from a FireWire drive is (if there is one) and the drive itself only has 900MB of free space.
I can't find any reference to Internal ATA drives anywhere in the MacDrive documentation; if it was possible I'd put them into the XP, get the files off the Mac drives, reformat them and install OS9 from the Discs.
This is where I am now:
The Quick Silver is still powered down. I removed the Microsft mouse and replaced it with the OEM Apple mouse. I opened the case, and removed the PRAM/Backup battery (manufacture date: July 2001). Couldn't find my voltmeter, so took the bat to Radio Shack and bought a new one. Had the Radio Shack guy test the old one: it showed 3.69 volts still. Have not installed the new battery yet. The case is still open, waiting for any advice any of you might have to offer.
Thank you all so much for your patience in perusing and pursuing this.
Sincerely,
Patterson
Power Mac G4 Quicksilver 867 Mac OS 9.2.x 17" Studio Display, 512MB RAM

Thank you Rodney and John,
The jumpers are correct for both Maxtor Drives.
Rodney, you are correct in that the initial problem (slow rendering/"out of Memory" crashes) was caused by my not realizing I'd stupidly captured several GBs of media to my system drive, and not checking which drives those files were on (as I'd assumed I'd put them on one of my external media drives) once that problem presented itself.
Before I'd determined what I'd done, I bought the extra RAM. After I'd found the media files on the System Drive, and saw that my dedicated media drives were too full to easily move them, I decided to buy an additional Internal drive so that I could:
-Move the Media onto it relatively quickly and finish my urgent project.
-Juggle all my media into a more organized fashion for archiving (as most of my projects are on-going long-term affairs)
-Wipe it, Partition it, and clone my System Drive onto it, as a spare bootable drive in case my OEM System Drive failed.
Copying the Media files onto the New Drive and moving the System Drive's Media files into the Trash worked great: huge improvement in Rendering, etc.
Before shutting down for the night I Emptied the Trash, and was pleased with the amount of space I'd freed up on the System Drive.
My guess is that the System Drive was terribly fragmented, having been subjected to intense use over the past 5 years without any sort of Drive Maintainence, and deleting that massive amount from it in one shot caused my extreme system sluggishness upon Startup the next day.
My subsequent lame attempts to solve the sluggishnes ultimately resulted in my losing access to both drives.
Today, I replaced the Backup Battery, pushed the PMU, re-attached the AC, and Powered Up with the case open as per your suggestion.
It was trying for a few minutes (the gray screen went black at one point, and then returned to gray) before presenting me with the flashing question mark.
There was, however, a quiet but distinct "buzzing" sound that would alternate: 1 sec "buzz", one second silence, one second "buzz", one second silence, etc. coming from the drives, even after the "?" appeared.
I powered down, removed the Ribbon and Power Cables from the new "Slave" drive, and powered up again, with the exact same results.
I powered down, removed the Ribbon and Power cables from the original "Master" drive, reinstalled the Jumper on the New Drive as "Master", plugged the End of the Ribbon and the Power cables into the New "Master" drive and powered up. The screen went to the "?" within 20 seconds instead of 4+ minutes, and no more "buzzing".
I put the Apple Hardware Tools Disk in, ran the "long" test, and everything came out fine.
I have to abandon this for now, but thanks again for your previous advice, and any more you may have!
Cheers,
Patterson

My second internal hard drive disappeared

My second internal hard drive disappeared a couple of days ago taking many gigs of iTunes with it. It does not appear on the desktop, finder or anywhere else. When I click on a song in iTunes I get "The song “Cowell: Set Of Five - 4” could not be used because the original file could not be found. Would you like to locate it?" When I try "locate," well it shows me the Main Disk. Not helpful. I've read lots of posts about vanishing drives and crashing drives on Leopard (I run Snow and was about to go to Lion). Did my drive die or did it go into the witness protection program? Irony is that I bought a 2 TB external drive last week to back up the iTunes drive and procrastinated. Suggestions? Experiences?
JCEspinosa

Is it listed in Disk Utility?

Secondary internal hard drive disappeared from desktop after forced restart

I have three internal hard drives, one for system, the other two for data storage. While permorming a search on one of the data drives i clicked the "X" to the right of the spinning wheel on the bottom right of the search window to stop the search but the computer froze (wheel kept spinning). I then went through the dock and quit all applications, except for InDesign which wasn't responding to force quit.
The only way out was a force restart. Upon restart, one of the internal data hard drives did not show up on the desktop, nor after a couple more restarts, nor after restarting from the installation disk, verifying and repairing disks and permissions on the other hard drives with disk utility.
where did it go?
G4 Mac OS X (10.4.9) Dual 1.25 GHz, 2MB L3 cache each, 2GB DDR SDRAM

no it doesn't show up at all in those either.
Hmm. Then that sounds like the interface to the drive isn't even talking. You could try opening up the computer and making sure the cables are all connected firmly (of course, it should be off).
here's the log:
Nothing here looks too alarming.
Apr 21 09:51:00 Greg-Simpsons-Computer webdavd[220]:
network_mount: WebDAV protocol not supported; file:
mount.tproj/webdav_network.c; line: 2702
Apr 21 09:51:07 Greg-Simpsons-Computer webdavd[245]:
network_mount: WebDAV protocol not supported; file:
mount.tproj/webdav_network.c; line: 2702
Was your iDisk mounted at the time? Or another WebDAV server?
Apr 21 09:51:20 Greg-Simpsons-Computer
diskarbitrationd[39]: mdsyncServer [193]:28715 not
responding.
Apr 21 09:51:20 Greg-Simpsons-Computer
diskarbitrationd[39]: mds [171]:28163 not
responding.
Hmm. These are part of Spotlight, but they don't really give any clues, just that they weren't responding. Which might be because the drive disappered during your search.
Waiting for MirrorAgent to launch and respond to
CFMessagePortCreateRemote(). [186]
Again, part of iDisk.
2007-04-21 09:52:41.360 SyndicationAgent[252]
WARNING: BestCalendarDateFromString - can't
interpret: 'Sat
that last line then repeats a lot of times
Nothing to worry about. It's badly formatted date strings from some iTunes RSS feeds. They're default bookmarks in a couple of places, which is why you see them sometimes.
2007-04-21 11:13:12.192 Pro Tools M-Powered Demo[352]
CFLog (21): GetDiskFragment returns -2804 for
<Product Registration><Product
Registration><AWSCommonSymbols.dll> when trying to
load /Library/Application Support/Product
Registration.app/Contents/MacOS/Product Registration
This is ProTools trying to load a piece of code. If ProTools is working, then I'd say it's nothing to worry about. Error -2804 is "specified fragment not found", but if it handles it okay, then it could just be an informational message.
Adobe LM Service: Started
AdobeLM Service
Just the Adobe license manager telling you it started. Nothing to worry about.
Unfortunately, I don't see anything helpful here. It's just like it disappeared (or never existed) as far as the OS is concerned. If you can find your original disks that came with the computer, you could try running the hardware test and see if it kicks up any errors, either with a drive or a drive controller on the motherboard.
charlie

2nd Internal Hard Drive Disappearing

I have a Powermac G5 with one 400gb harddrive that came with the computer and a 750gb Western Digital hard drive that I installed about 6 months ago. I never installed an operating system on it the Western Digital drive, it was just for storage of music/photos/video. About a month into owning the harddrive the icon disappeared from my desktop and a warning came up saying "device improperly disconnected." I opened up the computer and made sure the connection was snug, which it was, booted back up and everything worked fine. That has happened 3 times since I've owned the WD drive. Now it has disappeared again, except this time I can't seem to get it back. The connection is very snug. I have unplugged the harddrive and plugged it back in, rebooted a few times and nothing has worked. It would be pretty bad if I lost this drive. Any advice?

Either RMA or put it on a PC and run WD Diagnostics, or do a full low level erase, 7-way write erase the whole thing.
I had one I bought about the same time from OWC and I think I read a bunch of reviews on Newegg about problems with a different batch.
I found a couple areas on the drive that had bad blocks. TechTool Pro media scan can find them but why it doesn't then map them out??? Intech Speedtools is suppose to auto mapout, and maybe it does (all software does is tell the drive to write a pattern 10x and read it back and mark a weak sector as unavailable.... but WDs tool was the only one that really fixed it, not Apple DU 7-way erase, and not even zero all with SoftRAID.
I have about 20 WD drives, this is the only problem I've had, from 10K Raptors to 1TB Black and Green Power and in between.
I'd pick up the 1TB Black, or a couple 640GB Caviar ($69 each! OWC). Or spurge $300 on 10K 300GB boot drive AND 1TB data drive.

Can not shut down late 2011 MacBook Pro and turn it back on again without the hard drive disappearing?

Ok, I have searched for months for an answer to this question to no avail, probably because no one has experienced it before. I am hoping however that you guys can help me figure this one out cause it is driving me nuts! Also, I am not entirely sure what section of the support I should put this under so if I stick it in the wrong place, I apologize.
Right now my problem is very simple. When I turn off my laptop, and then try to turn it back on, my internal hard drive disappears... and I get the blinking folder with a question mark on it. I have figured out something interesting however. I have an install disk with Ubuntu Linux on it. If I boot into that first, then RESTART the laptop, not shut down and turn back on, it reads the internal hard drive just fine and I can boot as if there is nothing wrong.
Second part to the problem... If I allow the laptop in either OSX or Windows to go to sleep (aka shut off the hard drive but the computer remains on), when I attempt to wake it up, I am greeted with the usual log in screen of whichever OS I am in, but is frozen and after a few seconds goes black and restarts the computer to find that... Surprise! The hard drive is gone
I have tried every trick in the book that I can think of, but can not seem to come up with a solution to the problem... I know when the problem happened and if anyone thinks that that will help them figure this out I will type everything I did up till, including the crash that caused this, and my attempted fixes, but I have class right now so only if you guys want it I will type all that out.
What I am currently running is:
2011 MacBook Pro 13in screen
4Gb of Ram
1TB internal Hard Drive
OSX 10.11.whatever the newest update is... just updated the other day again.
Windows 8.1 on BootCamp 5 (yea I know its not supposed to work but it does) again, fully updated
Ubuntu 13.10 (I think? Doesn't really matter, its just an install disk I use to boot the computer)
If there is anything else that you guys need me to provide, I can, just simply ask. I can provide as much info as is necessary.

Sorry it took me so long to write back, But unfortunately this didn't help my issue.
My uncle and I did a lot of tests on this computer and have narrowed down the location of the problem a little bit.
We tried to first reset the SMC and the NVRAM as suggested, but the only thing that did was make the fans run on full tilt for the first session after restarting it for some reason. After that we tried re installing OSX over the OSX that was already on the system (not removing any of the files). This also didn't do anything but make refit stop working. Then we moved onto the next task at hand by removing the hard drive entirely and booting it as an external drive from one of the USB ports... as long as you booted it with the options key held down, it worked perfectly fine. Then we put an alternative hard drive into the computer and installed OSX on that. This time there was no trouble booting anything up. Everything seemed to work flawlessly. So we made a backup of my original drive (OSX, Windows, and all) onto an external hard drive and tested booting to it via USB. That again worked perfectly fine and booted right up with no problems. So after that we formatted the original hard drive and reinstated OSX. We then proceeded to transfer all the old files from the backup onto this new installation and LOW AND BEHOLD..... we were back to square one with it refusing to recognize the hard drive again.
So this basically told us that there appears to be something either wrong with the hard drive, or something got really screwed up in the software along the lines and by me copying all my old files back over, I just ended up bringing the screwed up file back over with it! (despite not copying over any settings of any kind) So I am still extremely confused as to what is going wrong... did some boot sector possibly get screwed up may be?

Help! Internal hard drive has disappeared

I just realized that one of my four internal hard drives is gone. I opened the machine and switched the bays and all was good except that drive did not show up and when I go to Apple System Profiler it shows that that bay is empty, nothing mounts. Can anyone Please Please help me give me some direction on what to do? I am literally freaking out and I try to be pretty calm and think things out. I have already reset the PRAM, done the SMU and have moved the drives to different bays which leads me to believe it is a hard drive failure. What can I do to or what software will help me mount this drive and find it. Dyin here. Sorry for the drama.

You have not changed anything about that hard drive in its Spotlight Comments, have you?
That can make it disappear from the Finder. However, you should be able to see it using Disk Utility.
You might also check to see if some of the contacts / pins in the rear of the drive have been bent or broken. If it does not show up in any slot / bay, that could be the problem.
If you have heard repetitive metallic clicks and / or scrapes, then the drive has probably crashed.

Internal & external hard drives disappeared in Finder

It happened yesterday on my G5 running 10.4.6. I have 2 hard drives inside my G5 and one external hard drive connected with firewire 800. The second hard drive and the external hard drive disappeared in Finder. But the one that has the system on it is fine. They did show up in Disk Utility. But it said they are both "not mounted".
When I tried to repair them in disk utility, it said:
"Checking HFS Plus volume.
Invalid B-tree node size
Volume check failed.
Error: The underlying task reported failure on exit
1 HFS volume checked
1 volume could not be repaired because of an error"
Does anyone know how to fix it? I have lots of stuff in those hard drives.
Thanks
Ti Powerbook G4 1Ghz, PowerMac G5 Dual-Core 2.3 Mac OS X (10.4.6)

Sounds like you have a major problem that Disk Utility cannot fix. This has happened before to other users. I suggest you get a copy of DiskWarrior and that will probably fix it. You can read about/buy it here:
Alsoft DiskWarrior
Mulder

Disappearing Internal Hard Drive

Hi Everybody,
Thanks in advance for reading.
Something weird has happened to my Quicksilver Mac and any help/insights you might have would be very appreciated b/c I'm totally stumped.
About eleven days ago, my Mac froze while waking up from sleep so I did a force quit. After that, the flashing question mark folder icon appeared whenever I booted up in the morning (Out of habit, I shut down nightly.) I ran DiskWarrior and Disk Utility from the original OS X install disk. Everything has been repaired/rebuilt several times. And despite being told that no repair is needed, every morning, I can't just boot up normally. I need to use either the install CD or Disk Warrior to get things going. But a few days ago, after starting up from the install CD, the hard drive did not show up. When I restarted again, the internal hard drive finally appeared. (The internal hard drive was replaced last April; it's a Western Digital, Mac Journal Extended.)
At that point, I used SuperDuper to clone my Mac onto an external (firewire) LaCie drive and made it my start up disk.
This morning, my Mac started up just fine, except my internal hard drive is no where to be found.
Does anyone know why this is happening?
Thanks in advance for your time and your help.
Sam

Thanks Tom for your reply. Yes, sometimes the internal drive shows up in "Startup Disk". And sometimes it doesn't, which makes it very mysterious. I'm trying very hard to remember what if anything I'm doing when it appears vs. when it doesn't. But I don't think I'm doing anything differently. If it's the internal hard drive, that would be pretty good news. Replacing a 10-month old drive is not fun but it could be worse. Thanks again!

Why have my TV shows on my external hard drive disappeared when I've deleted them from my iTunes library?

I am trying to free up space on my internal hard drive (MacBook Air). I copied my iTunes TV shows onto an external hard drive, following all instructions carefully. They were all there on the external drive - I opened a few and they played perfectly. I then went back into iTunes and deleted the shows, then emptied trash. When I went back into my external hard drive, all the TV shows had disappeared! Am now in process (yawn) of downloading the shows again onto my laptop, rather defeating my object of freeing up space. Can anyone tell me what I have done wrong?

Hello Janeburows,
You might have setup your iTunes in such a way that you store your Media files on your External Hard Drive and if that is the situation then whenever you delete anything permanently from your iTunes on your Computer when the External Drive is connected then the Content will get deleted from your External Hard Drive. To verify the Location for the Media files which you have on iTunes do the following.
Open iTunes > Preferences> Advanced and you will see it under iTunes Media Folder Location
http://support.apple.com/kb/ht1391

Internal Hard Drive Disk Utility Repair Problem

Hello all! I'm really hoping someone can help me out because I'm in a bit of a panic right now about all of this.
For starters, I have a Mid-2007 20" Intel based iMac.
The other day, I turned on my computer and got a flashing question mark and the computer would not boot. Luckily, I have an external hard drive, so I went through the process of using the Install Discs to use the Hard Drive to start up my computer. Everything worked out and once the computer turned on, I was able to access my Hard Drive and had full access to my files. I powered down my computer as I had to run out the door for school and was planning on backing all of my files up on my external hard drive tonight.
Unfortunately, when I turned on my computer, my internal hard drive had disappeared. I can only start the computer with my external drive plugged in.
I accessed the Disk Utility, and it was the first place I was able to locate my Hard Drive. On the left hand side, underneath the external drive, it simply says "Media". I cannot click on ANY of the options under First Aid and the only thing it seems I can do is Erase the drive.
I would REALLY like to avoid this option, as there are nearly 5 years worth of documents on this computer.
My S.M.A.R.T. Status says Not Supported, and it's saying that the Total Capacity is 0 Bytes.
I suppose I should also mention that with the disc I used I am now running OS X 10.4.11, but previously, I was running 10.5. I can't remember the last decimal place. I don't know why there was a difference, as I used the same disk...
I have NO IDEA where to go from this point besides taking it somewhere to see if my files can be recovered.
Can anyone help me out here?
If you need any more details about my computer/the actions I took, just let me know.
Thanks so much!!

If you cannot access the internal HD then it may have crashed, I am getting you may not have been backing up either so if it has crashed and you don't have a backup then your data is probably gone. If you can get the internal HD to show up again before you do ANYTHING else back it up using Time Machine (assuming you use 10.5.x or above) or create a clone on an external HD using either SuperDuper or Carbon Copy Cloner.
My recommendation at this point is to take the machine into and an Apple Store or AASP to have it looked at.

Internal hard drive/repair: SMART status; Disk Utility, Tech Tool & More

machine: 12" PowerBook 1.5 GHz PowerPC G4 (Aluminium) with 80GB internal HD
internal hard drive (original): Hitachi Travelstar 5K100 series HTS541080G9AT00
hard drive firmware: MB4AA5AJ
ATA version: 6
ATA standard: ATA/ATAPI-6 T13 1410D revision 3a
I have monitored the SMART status etc. of my internal drive with smartmontools for some time. Occasionally, I would see an error or a failed self-test but later testing always succeeded and things did not seem to be problematic.
At the beginning of this week, I started to see a lot of failed self-tests (though some still passed), a rising number of bad ("pending") sectors and reallocation attempts (though no reallocated sectors) and various other errors. The computer seemed to have trouble reading from the disk at times and Carbon Copy Cloner reported two I/O errors when cloning (a later clone succeeded). fsck showed errors although running fsck -fy repeatedly seemed to resolve them.
The Apple hardware tests initially reported an error (2STF/8/3:ATA-100 ata-6-Master) but I hadn't realised I should disconnect peripherals before running it so I did that and repeated the test which found no issues. I ran the extended test a total of three times with no errors.
As I continued to have problems, I booted from my clone and had Disk Utility wipe the drive by writing zeros to it. (I thought trying to get it to write everywhere would either finish the drive off or force it to reallocate the bad blocks. As I understand it, in normal use, the drive won't reallocate the blocks unless it can recover the data in the hopes of reading it at a later time.)
I then continued monitoring the disk using smartmontools. At this point, short self-tests succeed but extended self-tests "disappear". They don't fail, they simply vanish. They begin and smartctl shows the test in progress but then no error or result is logged - it is as if the test was never run. The first time I did this, I got an error saying the SMART attributes could not be read but subsequent tests do not trigger even an error. Short self-tests continue to pass.
There are now (according to SMART) zero bad ("pending") sectors but zero reallocated sectors, which seems odd. The raw read error rate fluctuates (zero one minute, many thousands a while later) although I am not sure it did not do this before.
Disk Utility claims the disk does not support SMART status even though smartctl clearly shows it does. Disk Utility claims the volume is "OK".
I ran Tech Tool Deluxe 3.04 from CD and 3.1.1 from my clone. In both cases, I ran all available tests on the drive. No problems were found.
I am seeing some problems even while booted from my clone - yesterday, the system froze completely and I had to force a shut-down by switching off the power (fsck then found a minor error but repaired it). Just before this happened, I was unable to mount a disk image and was trying to rectify the situation when the system froze. It is possible that the errors fsck corrected were implicated in the freeze, rather than caused by it, since Disk Utility found and repaired similar errors for the other two clones I have (on different partitions of my external drive - yes, I know this is sub-optimal).
Here is some current output from smartmontools:
---output: smartctl -q noserial -a disk0---
smartctl version 5.38 [powerpc-apple-darwin8.11.0] Copyright (C) 2002-8 Bruce Allen
Home page is http://smartmontools.sourceforge.net/
=== START OF INFORMATION SECTION ===
Model Family: Hitachi Travelstar 5K100 series
Device Model: Hitachi HTS541080G9AT00
Firmware Version: MB4AA5AJ
User Capacity: 80,026,361,856 bytes
Device is: In smartctl database [for details use: -P show]
ATA Version is: 6
ATA Standard is: ATA/ATAPI-6 T13 1410D revision 3a
Local Time is: Sat Jul 3 20:28:52 2010 BST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: ( 645) seconds.
Offline data collection
capabilities: (0x5b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
No Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 55) minutes.
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 RawRead_ErrorRate 0x000b 100 100 062 Pre-fail Always - 0
2 Throughput_Performance 0x0005 100 100 040 Pre-fail Offline - 0
3 SpinUpTime 0x0007 142 142 033 Pre-fail Always - 2
4 StartStopCount 0x0012 097 097 000 Old_age Always - 5793
5 ReallocatedSectorCt 0x0033 100 100 005 Pre-fail Always - 0
7 SeekErrorRate 0x000b 100 100 067 Pre-fail Always - 0
8 SeekTimePerformance 0x0005 100 100 040 Pre-fail Offline - 0
9 PowerOnHours 0x0012 039 039 000 Old_age Always - 26720
10 SpinRetryCount 0x0013 100 100 060 Pre-fail Always - 0
12 PowerCycleCount 0x0032 098 098 000 Old_age Always - 4168
191 G-SenseErrorRate 0x000a 100 100 000 Old_age Always - 0
192 Power-OffRetractCount 0x0032 100 100 000 Old_age Always - 201877487644
193 LoadCycleCount 0x0012 001 001 000 Old_age Always - 2209599
194 Temperature_Celsius 0x0002 141 141 000 Old_age Always - 39 (Lifetime Min/Max 16/46)
196 ReallocatedEventCount 0x0032 100 100 000 Old_age Always - 194
197 CurrentPendingSector 0x0022 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0008 100 100 000 Old_age Offline - 0
199 UDMACRC_ErrorCount 0x000a 200 200 000 Old_age Always - 0
SMART Error Log Version: 1
ATA Error Count: 2138 (device log contains only the most recent five errors)
CR = Command Register [HEX]
FR = Features Register [HEX]
SC = Sector Count Register [HEX]
SN = Sector Number Register [HEX]
CL = Cylinder Low Register [HEX]
CH = Cylinder High Register [HEX]
DH = Device/Head Register [HEX]
DC = Device Command Register [HEX]
ER = Error register [HEX]
ST = Status register [HEX]
PoweredUpTime is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.
Error 2138 occurred at disk power-on lifetime: 26716 hours (1113 days + 4 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
10 51 00 09 4f c2 a0 Error: IDNF
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC PoweredUpTime Command/Feature_Name
b0 d6 01 09 4f c2 a0 00 08:30:04.500 SMART WRITE LOG
b0 d5 01 09 4f c2 a0 00 08:30:04.300 SMART READ LOG
b0 d1 00 00 4f c2 a0 00 08:30:04.000 SMART READ ATTRIBUTE THRESHOLDS [OBS-4]
b0 d0 00 00 4f c2 a0 00 08:30:04.000 SMART READ DATA
b0 da 00 00 4f c2 a0 00 08:30:04.000 SMART RETURN STATUS
Error 2137 occurred at disk power-on lifetime: 26682 hours (1111 days + 18 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
40 51 28 18 95 98 e4 Error: UNC 40 sectors at LBA = 0x04989518 = 77108504
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC PoweredUpTime Command/Feature_Name
25 00 80 c0 94 98 e0 00 1d+01:30:37.600 READ DMA EXT
25 00 80 c0 94 98 e0 00 1d+01:30:30.600 READ DMA EXT
25 00 80 c0 94 98 e0 00 1d+01:30:22.600 READ DMA EXT
25 00 80 c0 94 98 e0 00 1d+01:30:16.300 READ DMA EXT
25 00 80 40 94 98 e0 00 1d+01:30:14.700 READ DMA EXT
Error 2136 occurred at disk power-on lifetime: 26682 hours (1111 days + 18 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
40 51 21 1f 95 98 e4 Error: UNC 33 sectors at LBA = 0x0498951f = 77108511
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC PoweredUpTime Command/Feature_Name
25 00 80 c0 94 98 e0 00 1d+01:30:30.600 READ DMA EXT
25 00 80 c0 94 98 e0 00 1d+01:30:22.600 READ DMA EXT
25 00 80 c0 94 98 e0 00 1d+01:30:16.300 READ DMA EXT
25 00 80 40 94 98 e0 00 1d+01:30:14.700 READ DMA EXT
25 00 80 c0 93 98 e0 00 1d+01:30:14.100 READ DMA EXT
Error 2135 occurred at disk power-on lifetime: 26682 hours (1111 days + 18 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
40 51 22 1e 95 98 e4 Error: UNC 34 sectors at LBA = 0x0498951e = 77108510
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC PoweredUpTime Command/Feature_Name
25 00 80 c0 94 98 e0 00 1d+01:30:22.600 READ DMA EXT
25 00 80 c0 94 98 e0 00 1d+01:30:16.300 READ DMA EXT
25 00 80 40 94 98 e0 00 1d+01:30:14.700 READ DMA EXT
25 00 80 c0 93 98 e0 00 1d+01:30:14.100 READ DMA EXT
25 00 80 40 93 98 e0 00 1d+01:30:13.500 READ DMA EXT
Error 2134 occurred at disk power-on lifetime: 26682 hours (1111 days + 18 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
40 51 28 18 95 98 e4 Error: UNC 40 sectors at LBA = 0x04989518 = 77108504
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC PoweredUpTime Command/Feature_Name
25 00 80 c0 94 98 e0 00 1d+01:30:16.300 READ DMA EXT
25 00 80 40 94 98 e0 00 1d+01:30:14.700 READ DMA EXT
25 00 80 c0 93 98 e0 00 1d+01:30:14.100 READ DMA EXT
25 00 80 40 93 98 e0 00 1d+01:30:13.500 READ DMA EXT
25 00 80 c0 92 98 e0 00 1d+01:30:12.100 READ DMA EXT
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBAof_firsterror
# 1 Short offline Completed without error 00% 26717 -
# 2 Short offline Completed without error 00% 26717 -
# 3 Short offline Completed without error 00% 26717 -
# 4 Short offline Completed without error 00% 26717 -
# 5 Short offline Completed without error 00% 26716 -
# 6 Short offline Completed without error 00% 26715 -
# 7 Short offline Completed without error 00% 26714 -
# 8 Short offline Completed without error 00% 26697 -
# 9 Extended offline Completed: read failure 10% 26692 75071682
#10 Short offline Completed without error 00% 26687 -
#11 Extended offline Completed: read failure 10% 26676 77108511
#12 Short offline Completed: read failure 40% 26663 296917
#13 Short offline Completed without error 00% 26657 -
#14 Short offline Completed: read failure 10% 26646 296918
#15 Short offline Completed: read failure 70% 26645 296905
#16 Short offline Completed: read failure 10% 26644 296910
#17 Short offline Completed: read failure 10% 26644 296910
#18 Short offline Completed: read failure 40% 26643 296916
#19 Short offline Completed: read failure 20% 26643 296909
#20 Extended offline Completed without error 00% 26620 -
#21 Short offline Completed without error 00% 26618 -
Warning! SMART Selective Self-Test Log Structure error: invalid SMART checksum.
SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENTTESTSTATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.
---end output---
Self-tests 1-8 were all run after I erased the disk. The others were run before I did so. Not listed are the extended self-tests I've started since erasing which, as I say, have simply disappeared.
The checksum error regarding the log is normal for this disk. At least, I've got that error ever since I started using smartmontools for monitoring so I assume it is normal. (I installed this version of the software in about April 2008 and have used it since.) Also, starting offline testing has never succeeded on this disk (I think I checked into this at the time but can't quite remember - this is not new, anyway).
Questions
how should I interpret all this? (Why does Disk Utility say SMART is not supported while smartctl clearly shows it is at the same time? Why do the extended tests simply vanish? Is the drive definitely dying?) I do not want to replace the disk unless I absolutely have to because I understand that replacing disks in 12" PBs is no small matter and cost is an issue. I do not want to replace the machine unless I have to because cost is an issue and, also, I really like this computer and have no idea what I would want in its place, even if expense were no obstacle.
if it isn't clear whether the drive is dying or not, is there some further strategy I can use to establish this?
if the drive is dying, is a machine of this age worth repairing and, if it is, under what circumstances is it worth doing so? For example, it might be worth doing if you can do the job yourself, but that might be quite impractical for non-expert (not to mention, inexpert) users.
if there is a hardware problem (which I obviously think is very, very probable at this point), is it definitely a dying hard drive? (I've seen people write ominous things about disk controllers etc. which I gather are more serious - or less repairable - than a "mere" dying disk.)
what questions should I be asking you and what are the answers to those questions?!
Many thanks for your patience in reading this far.
- cfr

The 12" PB internals are a bit more complex, for PB's. If you don't want to replace the hard drive yourself or pay someone to install it, you could always get an external firewire hard drive, and use it to boot from and for general usage. Would have to be firewire, since the PB won't book from a USB device. One example of what you could get is a 160GB external hard drive: http://eshop.macsales.com/item/Other%20World%20Computing/MS4U5160GB8/ . All the choices with that case are listed here: http://eshop.macsales.com/shop/firewire/on-the-go
Have you called any Apple Authorized Service Providers to see what they would charge to install a drive for you? Whether you bought it or they supplied it? You can find a local one in the US at http://www.apple.com/buy/locator/service/

New Internal Hard Drive and Clean Install: Errors, Frustration and Hopelessness

First Off:
Macbook 13" (late 2009) ... It was running Mountain Lion 10.8.5 with 2 gigs of memory and 160gig stock hard drive.
I started this process almost a week ago and despite numerous attempts every night I have had no luck. I appologize if the details here are fuzzy, my head is spinning after reading dozens of threads and attempting multiple solutions to each error I've received and i cant remember everything I've tried so far...
I got my new memory in the mail first, upgraded to 4 gigs and everything works fine with that..
Next came my new Seagate Momentus 750 gb 7200 rpm SATA 3gb/s 16Mb Internal Hard Drive.
Using this guide: http://osxdaily.com/2012/02/17/make-bootable-os-x-10-8-mountain-lion-usb-install -drive/ (and cross checking other guides) I ended up creating a bootable external drive using my 160gb External Firewire drive for my clean install to my new hard drive. So far so good.
I then shut down the computer, removed the old internal hard drive, installed the new, restarted the computer holding option key and booted up using the External Hard Drive, and the install software started fine. Note: I have attempted to re-erase the drive so many times without luck that I cant remember if I actually successfully erased the drive originally to begin with the installation, but either way I started the OSX reinstall and it got almost all the way finished before it gave me the error message:
"Install failed. Mac OS X Lion couldn’t be installed, because the disk (volume name) is damaged and can’t be repaired. Click restart to restart your computer and try installing again."
restarting of course did nothing, it repeatedly gave me error messages and made me quit installation...
Disk Utility isnt getting me anywhere, im either getting errors like:
"POSIX reports: the operation couldnt be completed. device no configured"
it wont allow me to erase the drive or partition the drive
"Disk Erase failed with the error: File System Formatter Failed"
and everytime the drive fails to erase or partition, it disappears from the list of drives on the left of the disk utility screen and i have to restart the computer for it to reappear for a second try. Typically the volume under the drive is greyed out and says that it is unmounted.
Ive zapped the PRAM.... and Ive done other things that I cant quite remember right now because my brain is boiling from reading too many **** threads on multiple devices....
halp.
halp me plase.

So funny story...
While writing this discussion I had to come to the computer and try to erase the drive so I could see the error code for reference. The erase didnt work as usual but I wrote the error code down here.
I also could not remember the error code for partitioning the drive so I attempted that as well so I could write down the code, and this time it magically partitioned successfully! The only thing I did differently was that I didn't rename the partition because i figured it wouldn't matter anyway. Since the partition was successful, I attempted the Reinstall of ML and it magically worked!!
I dont know what the **** happened but ive been attempting this install every night for like 3 hours since Monday and this is the first time it went through... for no apparent reason?
Ghosts? Magic? Full Moon?
we may never know...
Thanks anyways guys!

Updated to 10.4.5 and now my 2nd internal hard drive is missing...help.

I updated to 10.4.5 today with the I tunes 6.0.3. When it finished booting up my 2nd hard drive that holds all my music disappeared. I think the term is didn't mount. I am not computer savy. I have another internal hard drive that did. I used cocktail to repair permirssions and rebooted. I also, went to the apple site and downloaded 10.4.5 combo but still no luck. The hard drive does not show up in disk utilities at all. Any suggestions?
Thanks in advance....
power pc G4 Mac OS X (10.4.5) g4 12: powerbook

All I can tell you from the panic log is that there's a problem either with the video card and/or the video drivers. You might try the following:
Boot from your OS X Installer. Be sure to use the installer for the version of OS X you have installed. After the installer loads select Disk Utility from the Installer menu (or Utilities menu if using Tiger.) After DU loads select your OS X volume from the list on the left, click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer. Now shutdown the computer for a couple of minutes and then restart normally.
If DU reports errors it cannot fix, then you will need Disk Warrior (3.0.3 for Tiger) and/or TechTool Pro (4.1.1 for Tiger) to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
If this doesn't help then visit The XLab FAQs and read the FAQ on kernel panics.

Time Machine messed up my new internal hard drive. Help?

So I upgraded my internal hard drive to 1 TB and restored it with time machine backup. However, when I started my laptop, it kept giving me a "debugger called: <panic>" I am not sure if my time machine messed it up or it was the hard drive. Can anyone help me with this?
Also for more information, when it kept restarting and rebooting on its own, I could not control my own keyboard so I could not go to safe mode or anything like that. If you need to know more information, you can ask and I'll provide you with more information if you could help me out.
And I cannot post up the whole code cause it would disappear in 3 seconds.

solved

Internal Hard Drive disappeared

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