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Re: Disk won't unmount to erase




On 26 Jan 2005, at 18:03, David Riddle wrote:

Had some problems today with a G5 iMac drive.

After DiskWarrior work a new OS 'archive' install failed with errors.

Booted from CD Installer or from an external FireWire drive, running DiskUtility results in a refusal to erase the disk as it says it can't unmount it. Other attempts to unmount it cause messages about applications still running.

Also - I can't even delete individual folders or files on the drive

I have never ever seen this before.. OS-X or 9

Does anyone know of any way to force an initialise from the Terminal or in singles user mode?

You could try this:

Boot into single user mode from your external firewire then do this (taken from http://www.afp548.com/article.php? story=2004080413321761&query=diskutil):

So to use diskutil in SUM:

1. Boot into single user mode. (command-s)
2. Do 'fsck -yf' to check and or fix the disk.
3. Do 'mount -uw /' to mount the boot disk in R/W mode.
4. Do '/usr/libexec/register_mach_bootstrap_servers /etc/mach_init.d'
5. Now you need to start DiskArb up. Do 'SystemStarter start Disks'
6. Now you can use 'diskutil' as you usually would.

You should then be able to do 'diskutil eraseDisk' on the disk in question. I don't think it should even be mounted at this point so you shouldn't run into the same problem.

HTH

-geoff
______________________________________
Geoff Lee <email@hidden>
Computing Support, Architecture
School of Arts, Culture and Environment
University of Edinburgh
20 Chambers St,
Edinburgh, Scotland,
EH1 1JZ
Tel: +44 (0)131 650 8020
______________________________________

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 >Disk won't unmount to erase (From: David Riddle <email@hidden>)



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