External Hard Drive No Longer able to Mount
When my dad's iMac G3's power died we turn his G3's internal hard drive into a external so he could mount it to his new user account on my iMac G5. It's been fine until I recently had to force power of my computer. Now his G3 HD won't mount. We have 2 other externals connected. A USB 2.0 Maxtor connected for my Time Machine and his Firewire OneTouch used for his iTunes. Both of these still mount and work fine.
The OneTouch is connected to the G3 through firewire then they are both connected to the computer through a single firewire. Since the OneTouch still mounts I know it's not the connection.
We've tried using Disk Utility to repair and that says it's fine. It does show up there and can be checked but is grayed out and will not mount.
He has a book file he's working on, that he hasn't backup elsewhere along with apps that were purchased and have no way to recover so we can't erase this volume. Is there anything we can do to get this to mount like it has been?
Okay, yeah I knew that was a "duh"
That light isn't flickering, it's on steady. It's the drive indicator light that is doing nothing.
Turns out he had been saving the book to my hard drive and not his external like he thought so everything is there and backed up to Time Machine. Now we just need to purchase iWork to replace his Microsoft Office which was on the old drive and the reason he thought he was backing up to and working on his old drive.
He would still like to get the G3 drive mounted again but turns out he lost nothing.
Similar Messages
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Hi
After upgrading to osx 10.9.3, my external hard drive was not able to mount, but it can be mounted without issue in osx 10.6, how do I solve it? it was formatted by disk utility.
Thanks
PTFrom the menu bar, select
▹ System Preferences ▹ Energy Saver ▹ Power Adapter
and uncheck the box labeled Put the hard disk(s) to sleep when possible, if it's checked.
If the drive has more than one interface (USB, FireWire, Thunderbolt, eSATA), try one of the other interfaces.
Check that the data cable is securely inserted at both ends.
Try a different cable.
If you're connecting the drive through a hub, connect it directly to a built-in port on the Mac.
If you're connecting it directly, try a different port.
Disconnect all other devices on the bus, or as many as possible.
Test the drive with another Mac. Test another drive with this Mac.
If the drive is bus-powered, but has an AC adapter, connect the adapter.
Start up in Recovery mode and launch Disk Utility. Is the drive recognized?
Start up in Safe Mode and test.
Reset the NVRAM.
Reset the System Management Controller.
If the drive doesn't work under any of the above conditions, and if another drive does work with the same Mac, then the drive has failed. You may be able to salvage the mechanism by removing it from the enclosure and installing it in another one, or in a drive dock. -
I have a MacBook Pro, 10.10.2 Yosemite. My external hard drive no longer appears on my screen or in Time Machine. I have gone into Disc Utility to repair disc, and get the message: Error: Partition map check failed because no slices were found. I was trying to follow Melophage's instructions by going into "Terminal" and entering "diskutil list; diskutil cs list; mount" and "diskutil info disk2." Then I entered the command "sudo got show disk1." I am sure I have made the problem worse. Can you give me some help? Thank you. blelambert
Last login: Wed Mar 11 19:23:03 on ttys000
~ belambert$ diskutil list
/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *251.0 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_CoreStorage 250.1 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
/dev/disk1
#: TYPE NAME SIZE IDENTIFIER
0: Apple_HFS Macintosh HD *249.8 GB disk1
Logical Volume on disk0s2
7A998EAE-68FB-4BAC-BF40-7A31D2806B2C
Unlocked Encrypted
/dev/disk2
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *2.0 TB disk2
1: Microsoft Reserved 134.2 MB disk2s1
~ belambert$ diskutil cs list
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group 883A56F4-5559-4872-A8DA-960F99655B63
=========================================================
Name: Macintosh HD
Status: Online
Size: 250140434432 B (250.1 GB)
Free Space: 8921088 B (8.9 MB)
|
+-< Physical Volume 7EDAFA20-FF9A-45FB-BA44-6526BB46C381
| ----------------------------------------------------
| Index: 0
| Disk: disk0s2
| Status: Online
| Size: 250140434432 B (250.1 GB)
|
+-> Logical Volume Family B47B0B40-CBF2-4D02-BFEF-182061AC6F8E
Encryption Status: Unlocked
Encryption Type: AES-XTS
Conversion Status: Complete
Conversion Direction: -none-
Has Encrypted Extents: Yes
Fully Secure: Yes
Passphrase Required: Yes
|
+-> Logical Volume 7A998EAE-68FB-4BAC-BF40-7A31D2806B2C
Disk: disk1
Status: Online
Size (Total): 249779191808 B (249.8 GB)
Conversion Progress: -none-
Revertible: Yes (unlock and decryption required)
LV Name: Macintosh HD
Volume Name: Macintosh HD
Content Hint: Apple_HFS
~ belambert$ mount
/dev/disk1 on / (hfs, local, journaled)
devfs on /dev (devfs, local, nobrowse)
map -hosts on /net (autofs, nosuid, automounted, nobrowse)
map auto_home on /home (autofs, automounted, nobrowse)
localhost:/vB3z604U-dvSpES6320fHq on /Volumes/MobileBackups (mtmfs, nosuid, read-only, nobrowse)
~ belambert$ diskutil info disk2
Device Identifier: disk2
Device Node: /dev/disk2
Part of Whole: disk2
Device / Media Name: WD My Book 111A Media
File System: None
Content (IOContent): GUID_partition_scheme
OS Can Be Installed: No
Media Type: Generic
Protocol: USB
SMART Status: Not Supported
Total Size: 2.0 TB (2000365289472 Bytes) (exactly 3906963456 512-Byte-Units)
Volume Free Space: Not applicable (no file system)
Device Block Size: 512 Bytes
Read-Only Media: No
Read-Only Volume: Not applicable (no file system)
Ejectable: Yes
File System: None
Content (IOContent): GUID_partition_scheme
OS Can Be Installed: No
Media Type: Generic
Protocol: USB
SMART Status: Not Supported
Total Size: 2.0 TB (2000365289472 Bytes) (exactly 3906963456 512-Byte-Units)
Volume Free Space: Not applicable (no file system)
Device Block Size: 512 Bytes
Read-Only Media: No
Read-Only Volume: Not applicable (no file system)
Ejectable: Yes
belambert ttys000 Wed Mar 11 17:34 - 17:39 (00:05)
belambert ttys000 Wed Mar 11 17:33 - 17:34 (00:00)
wtmp begins Sun Mar 8 14:40
~ belambert$ ~ belambert$ diskutil list
-bash: :~: command not found
~ belambert$ /dev/disk0
-bash: /dev/disk0: Permission denied
:~ belambert$ #: TYPE NAME SIZE IDENTIFIER
~ belambert$ 0: GUID_partition_scheme *251.0 GB disk0
-bash: 0:: command not found
:~ belambert$ 1: EFI EFI 209.7 MB disk0s1
-bash: 1:: command not found
~ belambert$ 2: Apple_CoreStorage 250.1 GB disk0s2
-bash: 2:: command not found
~ belambert$ 3: Apple_Boot Recovery HD 650.0 MB disk0s3
-bash: /dev/disk1: Permission denied
~ belambert$ #: TYPE NAME SIZE IDENTIFIER
~ belambert$ 0: Apple_HFS Macintosh HD *249.8 GB disk1
-bash: 0:: command not found
~ belambert$ Logical Volume on disk0s2
-bash: Logical: command not found
~ belambert$ 7A998EAE-68FB-4BAC-BF40-7A31D2806B2C
-bash: 7A998EAE-68FB-4BAC-BF40-7A31D2806B2C: command not found
~ belambert$ Unlocked Encrypted
-bash: Unlocked: command not found
:~ belambert$ /dev/disk2
-bash: /dev/disk2: Permission denied
~ belambert$ #: TYPE NAME SIZE IDENTIFIER
:~ belambert$ 0: GUID_partition_scheme *2.0 TB disk2
-bash: 0:: command not found
~ belambert$ 1: Microsoft Reserved 134.2 MB disk2s1
-bash: 1:: command not found
~ belambert$ ~ belambert$ diskutil cs list
-bash: ~: command not found
~ belambert$ CoreStorage logical volume groups (1 found)
-bash: syntax error near unexpected token `('
~ belambert$ |
-bash: syntax error near unexpected token `|'
~ belambert$ +-- Logical Volume Group 883A56F4-5559-4872-A8DA-960F99655B63
-bash: +--: command not found
~ belambert$ =========================================================
-bash: =========================================================: command not found
~ belambert$ Name: Macintosh HD
-bash: Name:: command not found
~ belambert$
-bash: 3:: command not found
~ belambert$ /dev/disk1
Whole: Yes
Internal: No
OS 9 Drivers: No
Low Level Format: Not supported
:~ belambert$ Last login: Wed Mar 11 19:23:03 on ttys000
~ belambert$ diskutil list
Whole: Yes
Internal: No
OS 9 Drivers: No
Low Level Format: Not supported
~ belambert$ Last login: Wed Mar 11 19:23:03 on ttys000
~ belambert$ diskutil list
Volume Name: Not applicable (no file system)
Mounted: Not applicable (no file system)racergirl,
have you tried resetting your MacBook Pro’s System Management Controller, to see if that makes a difference with the heat? -
External Hard Drive no longer showing in Devices
My external hard drive no longer shows up as a device on my MBP. It has worked fine since the day I plugged it in.
The Time Machine is using the HD, and continues to do it's backups, so power and USB connection is not an issue
The HD shows up in Disk Utility (The Time Machine portion AND the partition that I've been using for storage)
I ran a repair on the partition in Disk Utility and it checks out OK
I can access this partition from VMware Fusion, so the windows side of the MBP sees it, and it's operational
Used the HD all day yesterday without issue
I've restarted the MBP to see if it would find the HD partition after a restart, it doesn't
I've unplugged (USB) and powered-off the HD, and when I power-on, it still isn't seen.
Any ideas?
JohnIf TM is turned on and it still doesn't show up then do a SMC reset.
SMC RESET
Shut down the computer.
Unplug the computer's power cord and ALL peripherals.
Wait 15 seconds.
Attach the computers power cable.
Wait another 5 seconds and press the power button to turn on the computer.
PRAM RESET
Shut down the computer.
Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys. -
LR 5 my external hard drive no longer appears as a hard drive but as a folder under "Volumes"
I am running LR 5 on a MacBook pro and my external hard drive no longer appears as a hard drive but as a folder under "Volumes". will this affect my ability to search and store in this external hard drive? How can I get it back to normal?
I just started having the same problem, oddly enough with a LaCie 500GB D2 Quadra external. Had it connected via FW800 then suddenly it won't appear in the Finder.
It shows up as an "Unknown Device" in the System Profiler under the FireWire Bus.
I do need the data on it so which solution is easier?
Replace the housing? Or am I better off calling LaCie and using the warrenty?
Thanks,
Shannon -
Firewire external hard drives no longer mount
I had 2 firewire external hard drives connected, not always at the same time and not running all the time. Suddenly they won't mount. I have run System Profiler and it shows "No information Found". The drives themselves mount on my other Mac laptop.
An external DVD writer, when mounted, shows up in profiler though not on the desktop. I have set the finder preferences to -show all mounted drives. System profiler lists all my USB devices. It's just the 2 Firewire hard drives that show no information found. The DVD writer works in either Firewire port.The hard drives are each made by a different manufacturer.
I have re-started with everything off. I have hot swapped.
Help-I need these drives to store photo files and print publications.
Fairview
iMac Mac OS X (10.3.9) G4
iMac Mac OS X (10.3.9) G4fairview:
The next step is to see if it is directory related and Repair Disk:
Insert Installer disk and Restart, holding down the "C" key until grey Apple appears.
Go to Installer menu (Panther and earlier) or Utilities menu (Tiger) and launch Disk Utility.
Select your HDD (manufacturer ID) in the left panel.
Select First Aid in the Main panel.
(Check S.M.A.R.T Status of HDD at the bottom of right panel, and report if it says anything but Verified)
Click Repair Disk on the bottom right.
If DU reports disk does not need repairs quit DU and restart.
If DU reports errors Repair again and again until DU reports disk is repaired.
If DU reports errors it cannot repair you will need to use a utility like Tech Tool Pro or Disk Warrior
Good luck.
cornelius -
HT201250 my external hard drive no longer shows up
I use a LaCie external hardrive for my Time Machine backup on my iMac.. Since October 24th 2012, my Imac no longer recognizes my LaCie..., and in fact no external hard drive is recognized. When I open up Time Machine it asks me to set up another Time Capsule.?? Has somethingchanged either in the operating system [OS X 10.7.5] or with iCloud that would be affecting this? My La Cie turns on and sounds like its working, and I have checked the power supply.
Hi baltwo and Miacc,
I also have a LaCie ext HD of 1T and OS 10.7.5. Since Dec 24th 2012 I haven't been able to mount the LaCie disk. I can see it in the Disk Utility but I cannot mounted. I verified the disk and even repaired it but nothing has happened, actually there is nothing wrong with the disk, but it cannot be mounted.
I did what you suggested baltwo but I'm in the same situation as before. I cannot mount the disk and/or do Time Machine.
Any suggestions? -
External hard drive no longer shows up on Desktop
Hi everyone,
I did what a good person should do with a tech issue and did a long search through forums before I resigned to bothering you all with it.
I've had a 500GB Seagate FreeAgent GoFlex Media external hard drive for 6 months which up until this week, was showing up as an icon on my Desktop. I had named it Eid HD.
I suddenly am unable to access this drive on my MacBook Pro. The Desktop icon has disappeared but the drive still lights up as per normal. I'm using OS X v10.6.8
I tried changing USB cables.
The drive appears in Disk Utility as follows (the yellow icons):
I read somewhere that I needed to mount it. The first yellow icon doesn't have the mount option. The second one (Eid HD) has the option but when I mount it, I get the following message:
Mount Failed.
The disk “Eid HD” could not be mounted.
Try running First Aid on the disk and then retry mounting.
I verified and repaired (First Aid) the disk. Results:
Tried to mount - same error message as above. Mount failed.
I downloaded Disk Warrior and although the drive appears in there, I can't do anything with it. The Graph and Rebuild buttons are both greyed out.
Does anyone have any ideas about how to fix this?
The files are still on the drive as I used it on a Windows machine to test it.
I don't want to format it.
Please help if you can, thank you in advance.
SamI verified and repaired (First Aid) the disk. Results:
That quote is from your first post. But I have some questions about that (maybe just to satisfy my own curiosity).
1. When you ran Disk Utility First Aid did you do it on the disk itself (the one that is enabled with the Seagate title)?
2. That First Aid window title line says "First Aid: EID HD" yet my DU window title only shows the name exactly as it appears in the left panel, no "First Aid:" prefix. So is that a change in 10.6.8 (I use 10.6.5)?
3. You display shows lines like "Verifying folders", "Folders verification completed", and "Verifying $...". Again I have never seen DU display that kind of info. Another 10.6.8 change?
As I said, I am only curious. It may not mean anything. But I thought I would point out these details just in case.
If these aren't 10.6.8 changes (I find it hard to believe apple would change DU after all these years just from 10.6.5 to 10.6.8) then just what DU First Aid were you running? -
My La Cie Porsche Design External Hard Drive USB 3.0 is no longer working with Time Machine. Is Yosemite the cause? How do I fix?
Can you see the drive in Disk Utility? If so, try selecting it and using the Mount button in the top menu. You can also run repair disk and repair permissions.
-
External Hard Drive no longer working
Hi Everyone,
I am hoping for a positive response. I have a SimpleTech (SimpleDrive) Model 96300-40001-001 external hard drive that I have been using for about 2 years now. The drive has extermly important information on it.
I just returned from vacation and attempted to reconnect my drive, using it's standard USB Cable, and received the error message of, "The disk was not ejected properly." After reading several previous topics, I attempted to do the following, with negative results:
Reset SMC and PRAM
Change USB Cable
Change Power Supply
Attempted to do Disk Repair, although, unable because the computer would eject the drive
When I first did a PRAM reset, I was able to double click on the hard drive from my desktop and see it's contents on the drive, but, when I tried accessing any of the files, I received the error message once more, (The disk was not ejected properly).
I am currently running a MacBook Pro, Mac OS X, 10.6.8, 2.53GHz Intel Core 2 Duo, with 4GB of Memory.
Any advice or suggesstions would be exteremly helpful, as I am trying to access the information left on this drive, which are very important.
RaffiHi, Glenn900. Welcome to the Discussions.
Assuming the hard drive mechanism itself isn't damaged (and that's a big assumption given what you described) the partition map of the drive may be damaged if it was connected to your computer and running when it went for its flight.
The partition map on a running, mounted external hard drive can become corrupted if the external drive is disconnected or powered-off without first being Ejected.
I frankly think there's a good chance that the drive may be damaged if it is not a portable external drive, i.e. one specifically designed and somewhat hardened for carrying around. The enclosure for a conventional, desktop-oriented external hard drive is not hardened, meaning they generally don't respond well to becoming projectiles.
However, if there's a chance to recover any of the data from the drive, my "Data Recovery" FAQ may help you with this problem.
Good luck!
Dr. Smoke
Author: Troubleshooting Mac® OS X
Note: The information provided in the link(s) above is freely available. However, because I own The X Lab™, a commercial Web site to which some of these links point, the Apple Discussions Terms of Use require I include the following disclosure statement with this post:
I may receive some form of compensation, financial or otherwise, from my recommendation or link. -
120 GB External Hard Drive no longer readable
My 120 GB external hard drive has been working perfectly fine on my new macbook pro. I just updated to OS X v. 10.5.2. Ever since, my external hard drive is no longer readable by the computer. I would like to set it up with time machine. I tried to connect the HD to another mac and a PC and it cannot be found by any computer. When i plug it into my computer, it brings me to the disk utility but I haven't been able to do anything to it. I don't really care much about the information on it as it is just backup stuff and my computer has it saved. Is there any way to format the drive and make it workable even if it is unreadable and can only be seen through the disk utility?
It only resets the machine's parameter RAM to the defaults (see http://docs.info.apple.com/article.html?artnum=2238 for details) which will necessitate resetting those preferences, but they're minimal. It could well be that the ext HD's gone south, but since it was usable prior to updating, it's worth a shot. If that doesn't allow you to see the HD, then you'll need something more powerful, such as DiskWarrior or TechTools. If those can't allow you to access it, then if there's stuff on it that you want to recover, you'll need something like DataRescue and even that might not work.
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External Hard Drive No longer Appearing on Macbook Pro
Hello, I have a Iomega ldhd-up 1TB external hard drive which I have owned for about 3-4 years. The enclosure case of the hard drive is very poorly designed and the port for the USB cable does not fit the cable tightly. Over the years I often would have to turn off the hard drive and adjust the cord so it would appear on my computer. (yes i know its a bad idea to turn it off without unmounting, but i didn't have much choice)
However, as of today, it is no longer appearing at all no matter what I do. (not on the desktop, or disk utility, or anywhere). It is making the same sounds and the light on the external is showing up as if should be working though.
Does anyone have a fix for this or suggestions to make my hard drive appear and function again. Any help would be much appreciated! Thank you.Since you have had a history of connection problems with the Iomega, get a new enclosure for the HDD. That of course assumes that the HDD is functional.
Ciao. -
LaCie 120Gb external hard drive no longer recognized
I've had a LaCie 120Gb external hard drive working independently off a firewire cable for a couple of months now. This morning it stopped being picked up as an external drive. It connects because you can feel it whirring, and stops when the computer is turned off (so the cables are working), but it no longer shows up in the finder or disk utility. I tried resetting the PRAM to no effect. Any ideas anyone???
Dave Nicholls, Auckland.it spins because it has power. maybe your firewire port is damaged? does the drive have a usb port that you can try? if not, you can remove the hard drive from it's enclosure and install it in a tower mac or pc if you have one and see if it shows up then.
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External Hard Drive No Longer Working After Being Removed From Mac
The following issue is happening to two other mac users that i know and its quite frustrating.
So if an external hard drive is not ejected properly from a mac, it then cannot be recognised by any other Mac’s. This issue is not isolated to just one external hard drive.
Then if i plug the external hard drive/s into my 8 year old Dell (PC) it works fine.
Further to this when i check the hidden files on the PC it looks as though Old Apple imbeds the external HD with a bunch of useless hidden files, once these are all deleted it miraculously works again on the Mac’s.
Too bad if you only have a Mac Because if the Mac disk utility can read the External HD it says that the disk has crashed and needs to be replaced.
Nice one Apple...
So now for my questions.
Why does mac add hidden files to an external hard drive when not ejected properly that prevents it from operating again on a Mac ?!!!!
How do i prevent apple from adding these hidden files?Can you see the drive in Disk Utility? If so, try selecting it and using the Mount button in the top menu. You can also run repair disk and repair permissions.
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External hard drive no longer shows up connected
I have been using a Seagate Freeagent 500 GB external HD as a backup storage device for my Windows 7, 64 bit computer. After working well for several years it did not respond the last time I tried to back up and shows up as "disconnected" when
I search for the HD in device manager or control panel. It was assigned Drive I but that drive no longer shows up under drives. I have tried different USB ports without success. Oddly, the audible signal sounds when I remove the USB cable from
a port but does not sound when I reinsert it. I also tried powering down the hard drive and powering up again without success.Hi,
If other PCs can show this external hard drive, You can try the following steps to clear the write-protected flag to see what's going on:
Open a command with administrator privilege:
type--> diskpart
type--> list volume
type--> select volume #
type--> attributes disk clear readonly
Kate Li
TechNet Community Support
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