Re: Tool for detecting partition superblocks needed
Le mercredi 01 octobre 2008 à 22:29 +0200, Wolfgang Pfeiffer a écrit :
> Excerpt from the Debian install syslog, cut:
>
> kernel: hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
> kernel: hda: dma_intr: error=0x40 { UncorrectableError }, LBAsect=76724680, high=4, low=9615816, sector=76724680
> kernel: ide: failed opcode was: unknown
> kernel: end_request: I/O error, dev hda, sector 76724680
> kernel: Buffer I/O error on device hda7, logical block 1
> kernel: hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
> kernel: hda: dma_intr: error=0x40 { UncorrectableError }, LBAsect=76724676, high=4, low=9615812, sector=76724676
> kernel: ide: failed opcode was: unknown
> kernel: end_request: I/O error, dev hda, sector 76724676
> kernel: Buffer I/O error on device hda7, logical block 0
> kernel: hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
> kernel: hda: dma_intr: error=0x40 { UncorrectableError }, LBAsect=76724680, high=4, low=9615816, sector=76724680
> kernel: ide: failed opcode was: unknown
> kernel: end_request: I/O error, dev hda, sector 76724680
>
> ... and the errors on sectors 76724680 and 76724680 are reported again
> and again ... and only these 2 sectors, IINM ..
These are quite severe hardware errors, I would advise you to do some
complete copy of your harddrive right now before it gets worse. Just dd
your hda, or use some other recovery software (like
http://www.garloff.de/kurt/linux/ddrescue/ ).
If only hda7 is affected, I think this is only the beginning, and if you
have backups it would be better.
> Failing hda7 is the root partition. hda6, not being listed here, with
> quite a few errors, was recoverable ... tho it's not quite clear
> whether this hda6 errors started while I was playing with the Debian
> Installer (Etch, IIRC) ...
This may not be related.
Maybe you could try to run smartctl -a from here, to get some
(hopefully) "usefull" stats from it.
> IIRC:
> the installer later on didn't even see hda7, whereas mac-fdisk did
> (took quite some time for it to finish the detection ...).
What do you mean by "see hda7" ? If (mac-)fdisk isn't even able to list
your partitions, one of the first blocks of your hard drive may be
damaged too.
> "Apple Hardware Test" on the OS X install CD seems to hang/crash, or
> simply does not load even after 15 Minutes or so ...
Well, being on the same IDE controller might not help. Can you remove
the HDD from your laptop for further analysis ?
BTW, how old is your powerbook ? I saw so many less-than-2-years iBook
fail, PBs might long longer but not that much ...
benjamin
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