Boot drive not mounting

I have a G4 Tray-loading xserve, running 10.3.9 server. The server was shut down, and now will not boot up. The boot drive is not seen. If I reset nvram, it will boot, and will restart from the apple menu, but if I shut it down, it will not boot again, until I reset nvram or pram.
It is the original apple drive and an original apple adm sled. I have tried another drive and sled, both apple originals, from another server, and get the same thing. I repaired permissions and checked the drive for repairs, but this did not fix the problem, nor did it find any errors.
An OS CD is seen right away and boots every time.
Schooltech

Is it possible that your battery on the motherboard has gone dead? Prior to your NVRAM reset (or when booting from the CD), is the clock wrong? Sure sounds like NVRAM parameters for the startup drive are being forgotten.
Russ
Xserve G5 2.0 GHz 2 GB RAM Mac OS X (10.4.8) Apple Hardware RAID, ATTO UL4D, Exabyte VXA-2 1x10 1u

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Internal boot drive not mounted -- Mac does not restart

Hi everyone,
I've got a problem with my 2013 MacBookPro 13" with OS X 10.10 Yosemite.
It seems that somethings wrong with my internal boot drive. I wanted to start my Mac but the grey progress line stopped at about the half and didn't continue. I tried to boot in secured mode --> not possible. I loaded recovery mode and wanted to check and repair disk utilities but I cannot hit those buttons because my drive is not mounted and cannot be mounted. I also tried to connect my Mac via Firewire with another Mac in Target Disk Mode --> Drive could not be mounted. Finally I tried to mount my drive on a Windows and Linux computer --> not mounted :-(
Is there another possibility to mount my drive or to access my data somehow? The thing is that I do not have a backup and that is why I need to access my data and store them somewhere prior being able to do a clean reinstall of my Mac.
Thank you for your support.
Markus

Boot into the Recovery volume (boot with the Command + R keys held down), select Disk Utility and try to repair the disk and disk permissions. If you're able to reboot normally and see that works.
If not reboot into the Recovery volume and reinstall the system.
If you can't boot into the Recovery volume mamau08 may be right in that the drive has failed.

Why do I get a boot drive not found error only when laptop lid has been closed?

I've got a HP Mini 210 P/Number: VX818EA with Windows 7 Starter.
It works fine when turning on after shutdown, but when I've put it to sleep by closing the lid it won't 'wake up', and I get a blank screen. On restarting the computer I get a 'boot drive not found' error, (3F0) which can be resolved by following the steps on this page: http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01443463&tmp_task=solveCategory&lc=en&dlc=en&cc...
I've run disk check etc as suggested on that link, no errors are found, but nothing seems to resolve the problem more than temporarily. Seems odd that this only happens if I close the lid (sleep mode with the lid up is fine, doesn't crash the computer).
Can anyone advise?
Thanks

Hello,
Very strange, can you go to BIOS and reset the setting " By Default " ?. How did you check the disk ?
This is an unusual probleme Hp Mini 210 . And notice me after your reset the bios settings.

10.6 to upgrade 10.8 my promise vess drive not mount again

when i upgrade 10.6 to 10.8 my promise vess drive not mount again.

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10.4.7 & FireWire drives not mounting

Hi everyone,
since this morning my trusted LaCie FW HDs won't mount, are not seen in System Profiler and Disk Utility.
I tried almost every thing I could find, resetting vram, pram, powering everything down, waiting, disconnecting all the cables, powering back up, connecting one after another, etc. - no changes.
Every application runs fine. Except, of course, Logic because I have all my sounds and song projects on these drives.
My system.log continues to say every second again:
...-Computer kernel[0]: AppleFWOHCI_AsyncTransmit::waitForDMA - context not going inactive.
The console.log repeats:
-Computer root[175]: [MAFL] attempt to make FSSpec for "121-210.cypress" failed -120\n
-Computer root[175]: [MAFL] attempt to make FSSpec for "210.cypress" failed -120\n
-Computer root[175]: [MAFL] found no firmware to load for 210\n
Does anybody know what these logs mean?
Is anybody else having this problem with 10.4.7?
I started a similar thread on A-S-D- Installation and Setup, only to find out, that a lot of people there are experiencing the same issue (FW drives not mounting, not showing).
Would resetting the PMU help?
Please help, I can't work

Back from the mysterious world of HDs, so easy to solve..., sometimes...
I tried the HDs on my friends older PB and all was fine.
Resetting my computers PMU did not solve the problem, after I tried everything else.
I refrained from reinstalling 10.4.7.
All other applications (but Logic, because I could not access my files) were running smooth.
Going back to 10 a.m. yesterday, basically starting over, there was one thing I missed checking (being human): the AC to DC converters supplied by LaCie for their drives.
See, they are under my desk, like out of sight...
Voilá! Individual testing revealed, that the AC/DC converter for the first LaCie drive in my chain did not spin up any of my other six LaCie drives, which I never run all at the same time, but they still have their own power supply.
Changed power supply on the first HD and now I am back to the fast speed and glitch free system I love. Back to enjoying work as well
What a day. And I am very sorry, that I was implying to blame 10.4.7 for this. My PB has never been faster

Usb optical drive not mounting

Usb Optical Drive not mounting via MacBook Pro (13inch 2013) since update to 10.10.1. Any positive solutions?

Hello MicroTuFF,
If you cannot get your USB SuperDrive to not mount disks, then take a look at the troubleshooting in the articles below. Start at the Doesn't accept discs section for your specific issue.
Get help with the slot-loading SuperDrive on your Mac computer
http://support.apple.com/en-us/HT201788
Regards,
-Norm G.

SOLUTION - USB 3.0 External Drives Not Mounting on MBP Retinas - SOLUTION

So I have been having the same problem as everyone else who has issues with USB 3 external hard drives not mounting on their MBP Retinas. My friend told me to try unplugging the USB cord and plugging it back in instantly (like in half a second, so as to not let the power turn off on the drive). I had my doubts but then I tried it just now, and MY DRIVE MOUNTED.
GO TRY IT AND SEE IF IT WORKS FOR YOU!
UPDATE: I am using a powered external drive (Seagate Backup Pro 3TB). Not sure if this will work with bus powered drives, but I think it might, as my friend might have been using a bus powered drive.
Also, I just bought two Hitachi TOURO 750GB bus powered portable drives (7200rpm/USB 3.0) and they mounted perfectly without problem as soon as I plugged it in for the first time.

Roderick A. Santiano wrote:
So I have been having the same problem as everyone else who has issues with USB 3 external hard drives not mounting on their MBP Retinas. My friend told me to try unplugging the USB cord and plugging it back in instantly (like in half a second, so as to not let the power turn off on the drive)...
Did you unplug the USB cable from the computer or from the external drive? This fix has been posted here previously but it was reported that the cable had to be unplugged from the device, not the computer. If the cable was unplugged from the computer instead, the fix didn't work.

Computer turns itself off and says boot drive not found, what do i do?

computer turns itself off and says boot drive not found, what do i do?

Hi,
Please use instructions from the following link to check and fix:
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01443463&cc=ad&dlc=en&lc=en&jumpid=reg_r1002_in...
Good luck.
BH
**Click the KUDOS thumb up on the left to say 'Thanks'**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

Drive not mounting after boot

I believe this is an epidemic problem in OS X. I have seen this problem on OS X 10.5 to 10.8.2. The fundament issue is that external drives will not mount randomly after the system is powered down and restarted. I have seen the problem with USB 2.0 and Firewire attached drives. I have seen this on many hardware platforms from PowerPC to i7 2.6GHz. I have seen the problem on different enclosures, WD, NextStar, Lacie etc. I have tried numours remedies like resetting the PRAM. The only remedy that works is unpluging the drive and pluging it back in, which if very annoying espicially since this is most prevalent in Time Machine backup drives. The many people who I help with their MACs don't often notice that Time Machine has been failing to backup for weeks since their drive has silently not mounted. Is there a real solution for this out there? It seems to me like a boot timing issue. Where the drive is not recognized by the low level driver, if it becomes powered on at a later time in the boot cycle. I can't really pin it down as it happens often but not often enough for any predictable pattern.

I believe this is an epidemic problem in OS X. I have seen this problem on OS X 10.5 to 10.8.2. The fundament issue is that external drives will not mount randomly after the system is powered down and restarted. I have seen the problem with USB 2.0 and Firewire attached drives. I have seen this on many hardware platforms from PowerPC to i7 2.6GHz. I have seen the problem on different enclosures, WD, NextStar, Lacie etc. I have tried numours remedies like resetting the PRAM. The only remedy that works is unpluging the drive and pluging it back in, which if very annoying espicially since this is most prevalent in Time Machine backup drives. The many people who I help with their MACs don't often notice that Time Machine has been failing to backup for weeks since their drive has silently not mounted. Is there a real solution for this out there? It seems to me like a boot timing issue. Where the drive is not recognized by the low level driver, if it becomes powered on at a later time in the boot cycle. I can't really pin it down as it happens often but not often enough for any predictable pattern.

Seagate Goflex external drive not mounting

Upgraded to Yosemite with no problems. However my Seagate 3tb external drive will not mount, but it is recognized in the disk utility and it is recognized on a pc but will not mount? Is there anything I can do? I tried the goflex thunderbolt dock, Ive tried usb, Ive plugged it into an older imac with 10.7 on it and it says "unrecognizable drive" and gives me options to initialize or eject. Is there anything I can use to just get these files off of here on win or osx?
I have also plugged in two 1tb drives seagate and toshiba and they both work perfectly. And, I have also updated the thunderbolt drivers and all that... I am at a loss of what to do next.

Okay found out the problem, on my exfat formatted drive, after I upgraded to Yosemite it basically created a new partition, a corrupted partition and would not mount my drive. However, I could open it and see it in Disk Utility.
Here's what I did to fix it:
Goto disk utility to see the name of you drive.
Open Terminal and type: sudo fsck_exfat -d disk1s1(this should be the name of your disk)
It will ask for your password then press, enter and it will display all files on the disk.
Then is will ask: Main boot drive needs to be updated?
Type: Yes
It will update and say that you can repair disk in disk utility.
Do that, and it will show up on the desktop.
Link to original forum post if you need more information:
https://discussions.apple.com/thread/4154638?start=0&tstart=0
Hope this helps, it was a headache for about a week but, Ive read osx does not handle exfat formatting very well.

External Hard Drive not mounting on bootup

I have a USB2.0 Hard Drive formatted with ntfs, which holds my music. I have an fstab entry for it using ntfs-3g and I can mount it fine after booting up. But the drive doesn't automatically mount like it should. It looks like the system is mounting the fstab entries before it is finished detecting my external drive. Anything I can do to fix this?

fwojciec wrote:I let my external ntfs drive be mounted by hal - I have no entry for it in /etc/fstab. In order to have it mounted with read/write privileges I had to create a hal policy like this wiki page describes: http://wiki.archlinux.org/index.php/HAL … ntfs-3g.29
I'm not sure if this solution is what you're looking for though...
I actually tried using hal to do it and it didn't work right for some reason.

Hard drives not mounting properly

Lately my MacBook Pro Core Duo 2.4 GHz, OS X 10.5.8 is having trouble mounting hard drives. If I start from my external drive the internal drive may not mount on the desktop or mounting may take a minute or two. Disk Utility will see it but the Mount option is grayed out and I shouldn't have to use that anyway. Similarly, if I start off the iternal drive the external drive may not mount, or mounting may be delayed by a minute or two.
Also, drives appear inconsistently in Startup Disk Prefs or the Finder Window Sidebar. They may not show at all or be delayed in showing up.
First Aid reports no problems with the drives, I have a fresh install of 10.5.8 on my internal drive, permissions have been repaired, directory rebuilt with Disk Warrior 4.1 and the drive optimized with Tech Tool Pro 6.
This and the fact that Boot Camp will not launch are making things difficult for me.
Any suggestions? Thanks.

I have that when using an iMac at work - my external is an old FW400 Formac drive.
Tracked it down to when VMWare Fusion is running - it seems to arbitrarily 'seize' new devices, and then doesn't know what to make of them because they're HFS.
If I connect it either pre-startup, or before VMWare starts there's no problem.
Do you have something running which is grabbing/affecting your Firewire bus - check the logs in Console.

Hard Drives not mounting

Hi there...I have a QuickSilver 2001 G4 Tower with two internal 60GB HD and one External Wester Digital 120 GB HD which is my boot drive. For a few weeks my internal hard drives would sometimes mount and sometimes not. Now they completely are not showing on the desktop or in any Disk Utilities I have. I examined the ribbon cable and notice that it goes right over the hinge on the G4 door to access the innards of the Mac. There seems to be a dimple in the cable as well as a break in the cable right in one of the cable strands. It is about 1/8" to 1/4" long.
Thinking I had some file issue I did a files system check (command-S, fsck, etc.). Before it ran the file check, One of the lines read:
IOATA Controller Device Blocking BUS
My assumption is that the break in the cable is preventing the signal from getting from or to the drives. Could this be the problem.
Also, my son picked up a seagate 60 GB Hard Drive from a friend that was formatted for a PC and had a ton of software on it. On the chance It might work, I hooked it up to the extra power cable and used the ribbon cable. Now the interesting thing is that it worked. Hole in the cable and all. The only thing I did not do, now that I think about it, was to try the other connector of the two head ribbon cable.
My question is: Is there any way to install this other HD inside my case without going though an interal SCSI bus?
Also, is there a way to get around the 128 GB limitation of internal drives. From the system profiler, my machine has these specs:
Machine Name: Power Mac G4
Machine Model: PowerMac3,5
CPU Type: PowerPC G4 (2.1)
Number Of CPUs: 1
CPU Speed: 867 MHz
L2 Cache (per CPU): 256 KB
L3 Cache (per CPU): 2 MB
Memory: 1.5 GB
Bus Speed: 133 MHz
Boot ROM Version: 4.2.3f1
Serial Number:
Any Help would be appreciated. Thanks
Al Hartman
G4 Quicksilver 2001 Mac OS X (10.4.3) SCSI Card, GeForce2 MX, Internal Zip, 2 60gb Internal HD, 1 120gb external HD, 1.5gb of RAM

John...your help has been...well, HELPFUL! LOL
Another question. I have been doing video editing and DVD creation with the Apple Pro Tools...however, my machine is only a 867 mHz and I have limitations on using Motion and HD DVD creation. I have seen much discussion here about processor upgrades. I was wondering if you had any suggestions on that subject. I am kinda partial to Sonnett Technologies hardware. But I want to be sure it will work with the Pro Tools since I have read that some have had issues with some processor upgrades.
I also have a UMAX S900 clone which has a Sonnett Technologies upgrade card which has worked flawlessly (btw, I use the UMAX for all my system 9 work. I figure why clog up my G4 with all that other stuff? I have installed all my System 9 programs including PageMaker 4.2-- wow! I was surprised when that installed!). I had some old files in PageMaker 3. or 2 or something and could not open them with InDesign or Quark or PageMaker 6.5. I looked in my disk storage case and, lo and behold, my original back-up floppies (remember those) when I bought the 4.2 upgrade. Man did that bring back memories-- swapping disks to install-- SEVEN OF THEM!
Once again, I appreciate your help and hope you can supply some additional insights. I am going to pop off those connectors on the internal hard disks and reinstall...maybe something is just loose. I am not thinking it is the controller on the board. If it was, the PC disk would not have mounted...right?
Al

Internal hard drives not mounting on startup

Problem: I recently did a clean install of Mac OS X 10.8 Mountain Lion on my Early 2008 Mac Pro. Since then, one or more of my four internal hard drives will not mount at startup, and it's seemingly random which ones will or won't mount; it differs from one startup to the next. Obviously, the boot drive starts up, but the remaining three drives are hit-or-miss.
Troubleshooting So Far: I can open Disk Utility and mount the disk(s) manually, and when I click Verify Disk, the hardware checks out okay. After my most recent startup, I brought up the System Log in Terminal (sudo syslog -B) and found this entry for one disk ("Media 1") that did not mount:
Apr 25 10:40:09 new-host-2.home fseventsd[48] <Critical>: event logs in /Volumes/Media 1/.fseventsd out of sync with volume. destroying old logs. (454 0 68038)
Apr 25 10:40:09 new-host-2.home revisiond[33] <Warning>: Had metainfo
Apr 25 10:40:09 new-host-2.home revisiond[33] <Warning>: UUIDs match!
Apr 25 10:40:09 new-host-2.home fseventsd[48] <Critical>: log dir: /Volumes/Media 1/.fseventsd getting new uuid: 1D55396E-183E-42AA-B788-FEFFF8694C10
Apr 25 10:40:09 new-host-2.home fseventsd[48] <Critical>: Events arrived for /Volumes/Media 1 after an unmount request! Re-initializing.
Apr 25 10:40:09 new-host-2.home fseventsd[48] <Critical>: creating a dls for /Volumes/Media 1 but it already has one...
Apr 25 10:40:09 new-host-2.home SecurityAgent[147] <Notice>: User info context values set for dangreene
Apr 25 10:40:09 new-host-2.home fseventsd[48] <Error>: disk logger: failed to open output file /Volumes/Media 1/.fseventsd/0000000000000c6d (No such file or directory). mount point /Volumes/Media 1/.fseventsd
There were no entries for the disks that mounted correctly. Can anyone make sense of this for me? The system jargon is a little beyond me.
Thanks for your help!

Is "Media 1" the name of the volume, or is it just "Media"?

WiebeTech Super Desktop Drive not mounting in Tiger

Hello,
I have a wiebetech super desktop GB external firewire drive. Originally, I used it with OSX 10.2. That was a few years ago. It worked well then.
It worked much the same with 10.3, except that when we tried to mount it, nothing worked, except it you plugged the firewire cable into the back of the iMac at just the right time: when the drive made a 'ba ba' noise.
And now with 10.4 tiger, nothing seems to make it work. Here is wiebetech's advice (note: I inserted a little note next to the steps I've tried):
2004-11-09
Mac OS Updates
A new OS update was released and you installed it. As with nearly every OS update
Apple does, some external drives are not recognized after the update. The incidence
is fairly uncommon and the most common symptom is that the device will not mount
but the volume is visible and greyed out in Disk Utility. This means that the
device is working properly, but the OS does not recognize the volume as mountable.
Sometimes the drive does not show up at all. Now this happens to every drive
manufacturer but not to every drive. There is no discernable way to prepare for
this and no one thinks about it unless it happens to them. So now what?
The first thing to do is to see if repairing Disk Permissions with Apples Disk
Utility First Aid feature solves the problem [tried this]. If not, try Repairing the disk
with First Aid. Another possible solution is to ZAP the PRAM [tried this too]. For the older Mac
users, this is the same from the days when we manually rebuilt the Desktop and
is done with a keyboard command while rebooting. Restart your computer and hold
down the Command, Option, P and R keys. Consult the Apple web site for details.
If this does not work, then try pushing the PMMU reset button on the logic board [say what?].
Consult the Apple web site for locations of the button for your Mac. If the drive
still does not show up, shutdown, disconnect all peripheral devices and boot
from the Mac OS Installation CD. The later the OS version, the better. Do not
reinstall the OS, but when the Installer is loaded up and ready to begin, go
to the File menu and use the Disk Utility program. Connect the drive that is
having problems, then start the Disk Utility application. If you see the external
drive and it is not grayed out, you know the drive is okay. But run Disk First
Aid on it anyway. Then run it on your internal boot drive while you are at it.
When done, unmount the external drive and UNPLUG it! Then restart the Mac.
When the Mac has restarted and is running on the internal boot drive, reconnect
the external drive.
As you can see, I'm having some trouble here. Anyone have any suggestions?
Thanks,
ben

Forget this enclosure:
Vantec Nexstar LX 3.5 Network Attached Storage NAS Enclosure
Do not bother to buy it. Waste of money and time. When I looked at it I thought that someone is copying someone elses ideas because even electonics seem to be the same as in NewerTech units. Anyway it has more problems and defective pieces are common on the market. It is also noisy as it runs fun. Why they cannot figure out that plastic enclosures will always have cooling problem while one decent piece of thic aliuminium like in MadDog, LaCie or even some cheaper enclosure may be better and not always require noisy fan. I run MadDog enclosure now with up 500GB drives in them 24x7 no fans (do not stack them and leave gaps between them if you want to do this!). Also some could figure out that radiators have their shape for reason and the idea can be implemted to some degree in enclosures too.
Message was edited by: Maciej Samsel

Boot drive not mounting

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