Drive Suddenly Won't Mount

I've had a 500GB Seagate external drive connected via firewire for my Time Machine for awhile now. I've used time machine with it to recover files, it always mounted and ejected fine, never had any problems, etc.
Today, all of a sudden, it won't mount. The weird part is the drive is operating. Something is writing to it - it's write light is blinking and I can hear it working. Still won't mount. I tried it on a different mac, same deal. It shows up in Disk Utility, but all of the buttons are grayed out. I can't verify or repair it. When I try to erase the drive via Disk Utility, it says it failed because "Resource Busy". Time machine is not writing to it. What the **** could be writing to it without me knowing?!
Anyone experience this before?

For some reason, with my WD 160GB drive, when I plug it in and it turns on, but it never mounts. I have to go into disk utility and wait, and wait, and wait, until it shows up in disk utility (a few minutes) then I have to select the drive and click on mount. It started doing this within the past few months. I have no idea why, but it's a pain.

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My external hard drive suddenly won't mount.

I have a mac 0sx version 10.5.8. My WD hard drive suddenly won't mount. Tried running a repair with disc utility-no luck.

Your best bet is DiskWarrior...
http://www.alsoft.com/DiskWarrior/

External hard drive suddenly won't mount

Although I've not had a problem with this drive in the past, it all of a sudden won't mount. It has all my music on and stalled while I was using iTunes, the timer wheel came up and was still the same after 20 minutes so I closed down. Now the drive won't mount at all so I can't even try repairing the disk. I've tried swapping from firewire to USB cables and also going through a hub, neither have worked.
It's a Lacie and the power light stays continuously orange on it and it feels like it's working overtime.
PLEASE HELP!

A little bit more on this... I looked at the instructions for the Lacie and it said that some smaller laptops may require a power cable via a USB port and back into the Lacie, which now works but I'm wondering why this has happened all of a sudden and can I rectify it??
I've deleted a load of stuff off my ibook hard drive, like photos etc, thinking that would help but it hasn't. Plus, I've recently installed an extra 1gb power card.
What can I do to avoid having to plug all these peripherals in to access my music?

Lacie external hard drive suddenly won't mount on iMac 27"

Help! My back up Lacie suddenly won't mount. It shows up on my disk utility (but faded) and I tried to repair it with no benefit. I thought it might be a Lion problem, but my other Lacie is working fine. I tried using a different USB cable and unplugging everything, rebooting etc. Any help would be much appreciated.

There may be hardware problem with the drive. However you can try resetting the SMC. Don't be afraid to reset it 2-3x if the first time doesn't work.
SMC RESET
Shut down the computer.
Unplug the computer's power cord and all peripherals.
Press and hold the power button for 5 seconds.
Release the power button.
Attach the computers power cable.
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.

External hard drive suddenly won't mount, but shows in Disk Utility.

Running OS 10.6.8... Disk Utility sees it and there's no issues when verified or repaired. The partition is grayed out and won't mount through Disk Utility. I've also tried mounting via Terminal, but same result. I've connected other drives, so I know it's not the wires or ports. When I turn the power on, it spins up and seems to be working properly. I don't have another mac to test it on. Any ideas would be greatly appreciated.
Here's the info from Disk Utility:
Name :     BACKUP
    Type :     Volume
    Disk Identifier :     disk1s10
    Mount Point :     Not mounted
    File System :     Mac OS Extended (Journaled)
    Connection Bus :     FireWire
    Device Tree :     IODeviceTree:/PCI0@0/RP05@1C,4/FWBR@0/FRWR@0/node@30e0f4e010a9d6/sbp-2@c000
    Writable :     Yes
    Universal Unique Identifier :     C3BC8998-F686-3A0F-A1AF-11260799EABA
    Capacity :     319.94 GB (319,937,773,568 Bytes)
    Owners Enabled :     No
    Can Turn Owners Off :     Yes
    Can Be Formatted :     Yes
    Bootable :     Yes
    Supports Journaling :     Yes
    Journaled :     No
    Disk Number :     1
    Partition Number :     10

You don't have a PowerMac if you have a Mac Pro. You don't have a PowerMac if you have Mac OS X 10.6. PowerMac is the name for the desktop professional Macs prior to mid-2006.   Two possibilities, the drive is dead, or the drive has a bad directory.   For a fee you can isolate either on my FAQ*:
http://www.macmaps.com/directoryfaq.html
* Links to some of my pages may give me compensation.

My WD 500 GB Ext. Hard drive suddenly won't mount

Hey guys,
I use a WD mybook 500 GB HD through Firewire 800 on My iMac. It is used solely as my Scratch disk for FCP. Suddenly today when i turn on the computer it dosent mount on the desktop along with the MacHD. I ve tried all the repairing permissions, Disk utility. Ive gotten so frustrated i went out and bought another HD, an Iomega. Its not showing up either. I now think its something in the Computer. I have been using the MyBook for about a year now with no problems. Side note...i tried downloading the 10.5.6 update. it hung up while "configuring Installation" Things seem to be going wrong after that. I have also already tried booting up with the Leopard disk into first aid. That didn't help either.
Any suggestions
Thanks Everyone,
Steve

the most important lesson here is that EVERY DRIVE WILL FAIL. It's the nature of the universe. Some drives will fail sooner than others, some drives will give signs that they are beginning to fail, while others will suddenly die a quick death. Do not assume that because you buy one of the brand drives that Jerry recommends that the drive will not fail, although they are definitely more dependable. I've had two drives from one of the brands Jerry mentions fail almost immediately after purchase.
You need to have a workflow that allows you to continue working when you have a drive failure. Make sure all material on video tape is captured with device control, with "abort capture on dropped frames" and "make new clip on timecode break" enabled in your preferences. This will allow you to recapture if necessary. Any files that do not originate in this manner need to be backed up (and even that can be problematic).
Also, I highly recommend you purchase diskwarrior. It's a disk repair program that does one thing and one thing only: repairs the directory structure of a drive. It will repair drives that the disk utility will not fix.

External Hard Drive Suddenly won't mount except if connected via keyboard

Hi there guys. I have a generic USB 2.0 Hard drive enclosure that I've been using successfully with my Macs. Today it doesn't work, on any of them.
I connect it via USB to the back of my iMac, and it will not mount. I checked system information, and it finds: (under USB)
- USB 2.0 Storage Device
And it knows this:
USB 2.0 Storage Device:
Version: 1.03
Bus Power (mA): 500
Speed: Up to 480 Mb/sec
Product ID: 0x5621
Serial Number: 00042222200000157768
Vendor ID: 0x0402
If I plug the hard drive in through my Apple keyboard, it mounts fine, but is SUPER slow, like completely unusable. However in this case, system information says:
USB 2.0 Storage Device:
Capacity: 189.92 GB
Removable Media: Yes
Detachable Drive: Yes
BSD Name: disk1
Version: 1.03
Bus Power (mA): 100
Speed: Up to 12 Mb/sec
OS9 Drivers: No
Product ID: 0x5621
Serial Number: 00042222200000157768
S.M.A.R.T. status: Not Supported
Vendor ID: 0x0402
Volumes:
Backup Disk:
Capacity: 189.8 GB
Available: 44.78 GB
Writable: Yes
File System: Journaled HFS+
BSD Name: disk1s3
Mount Point: /Volumes/Backup Disk
So.. yeah. I've got important data on this drive, and I seriously have no idea what to do. I've read a few forum posts around the web and have seen similar problems but not solutions posted. Can anyone help?
What should I try?
-Brian

One last question have you tried theMac OS X 10.4.10 Combo Update v1.1 (Intel)
Note: What’s New in this Version
The 10.4.10 Update is recommended for PowerPC and Intel-based Mac computers currently running Mac OS X Tiger. This update includes general operating system fixes, as well as specific fixes or compatibility updates for the following applications and technologies:
- RAW camera support
- Mounting and unmounting external USB devices
- Support for 3rd party software applications
- Security updates
17" iMac Intel Core Duo - 2GB Ram - Mac OS X (10.4.10) - Maxtor 300GB FireWire - Creative Inspire 2.1 - 2G Nano

LaCie External Harddrive suddenly won't mount via Firewire 400 or 800

My LaCie External d2 Quadra suddenly won't mount via Firewire 400 or 800, but will mount via USB 2.0.
I have:
Tested the harddrive on another computer and it works fine via firewire.
Shut down and re-boot. It had no effect.
Updated all software.
Note: My MBP will not boot if the Firewire 800 cable is connected.

I've had a whole heap of strife with my two macally enclosures over FW. I've only got them working twice together, regardless of jumper settings on the harddrives. I can plug either in fine, but if I use both together, my mac shuts down and refuses to boot. One drive is bus powered, the other is powered via the mains
I wish you luck

External Iomega Drive Partition won't mount

Hi:
I have a partition on my Iomega external drive that won't mount. The drive has 2 partitions. One I use for back up works fine. This other one is visiable but won't mount. I have run disk utitility and it says everything is fine but says it isn't journaled. It won't let me turn on journaling and won't let me get it mounted, what can I do?

Hi Dennis:
Thank you for your attempt at helping me. I opened Disk Utility and saw the greyed out "video Editing" partition, clicked on it and tried to mount it. It says it cannot mount the volume. I then clicked on the greyed out drive partition and clicked on disk first aid. It gives me the following screen.
Verify and Repair volume “Video Editing”
Checking Journaled HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Checking multi-linked files.
Checking Catalog hierarchy.
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
The volume Video Editing appears to be OK.
It just plain won't mount but I have in the past been able to see the contents inside and the other partition for which I use as back up for my iMac works just fine so I know the drive is working fine. I just cannot get this partition to mount.
Any other ideas?
Thank you,
Reid

IMac (suddenly) won't mount anything

Hi. My iMac G3 has suddenly stopped recognizing external devices. It won't mount my iPod or Lacie external hard disk via Firewire or my Zip drive via USB. All the devices turn on, start spinning, etc. when plugged in, but the iMac doesn't know that they are there. My last software update was last month and this problem started in the last couple days.
The only thing I can think of is that the iMac was accidentally unplugged while running the other day. No external devices were mounted at the time. The machine started right back up when I replugged it, which was a great relief because when this happened twice before it was hours before I could turn it back on. (the plug at the back of this iMac falls out too easily imho)
I already tried repairing my disk permissions, but that did not help.
I'd sure appreciate any help. Thanks.
iMac G3 600 mhz slot loading CD-RW Mac OS X (10.4.6)

Well, good grief, nevermind. I got up this morning and—viola—the problem had fixed itself.

G drive mini won't mount via firewire 800. usb ok

It hasnt been too long i bought myself a gdrive mini to benefit from the firewire 800 port. It seems that once my macbook gets warm the drive won't mount. It mounts just fine via usb. I've been to the genius bar twice and it worked both times, thats when i noticed it only happens when its warm. I was convinced its a software issue, but i dont know what to think anymore.
Has anyone encounter this issue? Any ideas of whats causing this?
Any help would be greatly appreciated

WAIT WAIT EVERYONE....READ THIS....VERY SIMPLE FIX!
My G mini 750GB drive stopped mounting.....I tried a million methods to get the G mini drive to mount and searched a ton of forums but never found this VERY EASY FIX. Try powering down your computer (imac in my case), then UNPLUG the power supply from the back of the computer....VERY IMPORTANT TO UNPLUG COMPUTER FROM ELECTRIC SOURCE. Nothing else worked for me.
Wait a minute, then plug back in and re-boot....MAGIC - freakin G mini showed up on desk top!
Good Lord why is this simple fix not all over the G mini site?????? It ought to be on the front of the box when you buy this thing! Seems no one at G mini sites talk about this and people are sending drives all over for repair!
Hope this helps!

10.4.9 and now USB Hard Drive(s) Won't Mount

After running the combo updater on my Intel Core Duo iMac 17" my LaCie BigDisk won't mount nor will my 60GB USB hard drive that I use to backup my MacBook (though this drive DOES mount on the MacBook without any problems). All other USB devices (and my 160GB Western Digital USB Hard Drive and 300GB Seagate FireWire hard drive mount and work fine on the iMac). My LaCie BigDisk wouldn't mount on my MacBook at first, but eventually mounted ONCE on the MacBook. I have tried repairing permissions, rebooting, using an older IOUSBFamily.kext (that was a nightmare and required some CLI experience to undo without having to find a firewire cable that long enough to reach around my desk to use the iMac via Target Mode on the MacBook good thing I saved the original).
At any rate here is the error output in Console.app:
Mar 13 20:32:59 iMac kernel[0]: USBF: 426. 4 ControlTransaction: control packet 1 error 0xe0004057
Mar 13 20:32:59 iMac kernel[0]: USBF: 426. 4 AppleUSBEHCI[0x3af4000]::DeviceRequest - buffer dmaCommand (0x39b3900) already had memory descriptor (0x3f54a00) - clearing
Mar 13 20:32:59 iMac kernel[0]: USBF: 426. 5 AppleUSBEHCI[0x3af4000]::ControlPacketHandler - unexpected command BufferMemoryDescriptor(0x46a0d00)
Mar 13 20:32:59 iMac kernel[0]: USBF: 426. 35 AppleUSBEHCI[0x3af4000]::DeviceRequest - dmaCommand (0x39b3900) already had memory descriptor (0x46a0d00) - clearing
Mar 13 20:34:08 iMac kernel[0]: USBF: 495.663 AppleUSBEHCI[0x3af4000]::Found a transaction which hasn't moved in 5 seconds on bus 253, timing out!
[Above Repeating for a long time]
Mar 13 20:34:12 iMac kernel[0]: USBF: 499.351 [0x3bd7800] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 2 of hub @ location: 0xfd300000)
Mar 13 20:34:12 iMac kernel[0]: USBF: 499.352 [0x3bd7800] The IOUSBFamily was not able to enumerate a device
Any help would be appreciated!

Anyone else having this problem?
Possibly.. my Lacie hard drive (firewire) has stopped working since I updated to 10.4.9 with the device attached. See: http://discussions.apple.com/thread.jspa?threadID=889519&tstart=45
iMac G5 iSight 2.1GHz, iBook G4 1.42GHz, iMac G3 Snow 700MHz, 2x iSight Mac OS X (10.4.9)

External Backup Disk Suddenly Won't Mount...

Tried to shut down, restart and repair the disk with Disk Utility...but it won't mount. Any suggestions? It's a WD 500GB external backup disk...I use it for Time Machine.
Thanks!

The only other thing that I can suggest at this point is to turn Time Machine off and try reseting the partition map scheme +(GUID Partition Table)+ and the format +(Mac OS Extended)+ again to see if it repairs the drive. Unfortunately that will erase all of your previous TM backups, but might get the drive working correctly again. Then if and when you get the drive working correctly go to the Time Machine Preference and reselect the drive to Use for Backup.

Seagate drive GoflexD won't mount.

Wouldn't mount on a PPC iMac (circa 2006 running 10.5.8) and won't mount on my new iMac either. Drive shows up on "about this Mac" under USB (3.0 SuperSpeed bus- FA GoFlex D esk) but doesn't show in disk utility. After many calls to Seagate they suggested a new cable and that had no effect. Eventually,they exchanged the drive and gave me a new one. The new one didn't mount on the old iMac or the new iMac. And,yes, I've disconnected and reconnected the USB cable,power supply and rebooted several times.
As I never trashed anything on the original hard drive I haven't lost any data so,I guess,I can discard the Seaflex and try another drive.
Any suggestions?

Is there any help under 'More Like This' on the right? >>>>>>>>>>>>>>>>>>>>>>

Hard Drive Ejected - Won't Mount

Hi all,
When booting my computer today, I received an error message that a disc contained unreadable information and was asked to "eject, ignore, or cancel." My second hard drive then didn't appear once I was logged in.
Disk Utility sees the second drive, but clicking on "Mount" does nothing. (The log says "mount succeeded" but nothing happens.)
When using Verify Disk or Repair Disk, I get the following message:
Verifying volume “disk0s3”
Checking HFS Plus volume.
Catalog file entry not found for extent
The volume needs to be repaired.
Volume check failed.
Error: The underlying task reported failure on exit (-9972)
1 volume checked
0 HFS volumes verified
1 volume failed verification
Any ideas???
Thanks!

Sounds like these are your choices,
1: Download Disk Warrior, it's really only good at repairing your directory, it's expensive, it won't repair bad sectors.
and/or
2: Download Data Rescue to get your data off the drive
then
3: Disk Utility erase w/zero option and reformat.
Your drive may be failing or it might be suffereing from a bad sector (erase w/zero re-writes the bad sector map)
I wouldn't trust it and have a backup.
I would do #2 and #3 above, if DW screws up your drive or it fails while your working on it... get your data off first.
Read my tips and pages
http://homepage.mac.com/hogfish/Personal11.html

Drive Suddenly Won't Mount

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