Using System Rescue to Rescue a CRC'd drive

Questions about problems with your hardware. For example, if you the kernel hangs during boot because of an hardware failure or if you have a problem with a driver not working or missing.
Icepick
Posts: 2
Joined: 06 Sep 2013, 17:05

Using System Rescue to Rescue a CRC'd drive

Postby Icepick » 06 Sep 2013, 17:07

I have a 1TB SATA HDD that has developed a CRC error - the Windows machine (I have no others) sees the drive, but thanks to a CRC error cannot access the files. I have downloaded and installed System Rescue to a USB drive, and it boots up fine - and it also recognizes the drive, and can even see and copy the files on it. How can I use System Rescue to fix the CRC error and get the PC to use the drive again without formatting it?

gernot
Posts: 1127
Joined: 07 Apr 2010, 16:19

Re: Using System Rescue to Rescue a CRC'd drive

Postby gernot » 06 Sep 2013, 17:19

Safest way is to make a backup and restore it.

If mhdd (a bootfloppyimage on sysrcd) detect the drive in IDE mode it can scan/repair/remap bad blocks.

Third but a bit risky way is to run a nondestructive read-writetest with badblocks. Be verry careful with the options.

Gernot

Icepick
Posts: 2
Joined: 06 Sep 2013, 17:05

Re: Using System Rescue to Rescue a CRC'd drive

Postby Icepick » 06 Sep 2013, 17:26

That first idea - I would like to do that, but I'm a bit uncertain as to the process. Could you walk me through it?

gernot
Posts: 1127
Joined: 07 Apr 2010, 16:19

Re: Using System Rescue to Rescue a CRC'd drive

Postby gernot » 06 Sep 2013, 17:46

mount a filesystem that is big enough:
use "fsarchiver probe" to get a list of filesystens.

mkdir /mnt/backup
then for a fat target
mount /dev/sdxY /mnt/backup
or for ntfs
ntfs-3g dev/sdxY /mnt/backup

Then run partimage and select a target file like /mnt/backup/backupfile

Read also http://www.sysresccd.org/Sysresccd-manu ... s_computer

Gernot


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