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Linux and bad SCSI HD: can I force mount a partition?
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RS  
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  More options Aug 7 2003, 11:45 pm
Newsgroups: comp.os.linux.hardware, linux.dev.scsi, comp.os.linux.misc
From: RS <NoEm...@nospam.com>
Date: Thu, 07 Aug 2003 23:30:45 -0400
Local: Thurs, Aug 7 2003 11:30 pm
Subject: Linux and bad SCSI HD: can I force mount a partition?
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Hi, there,

I have this SCSI HD which developed a problem. It seems that
sector 0 of the HD turned bad.
When my Redhat Linux 7.3 boot up, I got this message:

--
sym53c896-0-<4,*>: FAST-40 WIDE SCSI 80.0 MB/s (25.0 ns, offset 31)
SCSI device sdc: 71776260 512-byte hdwr sectors (36749 MB)
 sdc:SCSI disk error : host 0 channel 0 id 4 lun 0 return code = 2
 I/O error: dev 08:20, sector 0
--

It cannot mount /dev/sdc5. But when I do '/sbin/fdisk -l',
I see the partition there:

--
Disk /dev/sdc: 255 heads, 63 sectors, 4467 cylinders
Units = cylinders of 16065 * 512 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/sdc1             2      4467  35873145    f  Win95 Ext'd (LBA)
/dev/sdc5             2      4467  35873113+  83  Linux
--

I verified the disk through the SCSI bios. It also reported sector 0
is bad. I tried to reallocate it but failed.

Is there a way to force Linux to mount the partition?

Thanks in advance,
Roger
email: rs...@bigmailbox.net


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Wolfgang Fischer  
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  More options Aug 8 2003, 4:25 am
Newsgroups: comp.os.linux.hardware, linux.dev.scsi, comp.os.linux.misc
From: Wolfgang Fischer <Wolfgang_.fisc...@freenet.de>
Date: Fri, 08 Aug 2003 10:25:42 +0200
Local: Fri, Aug 8 2003 4:25 am
Subject: Re: Linux and bad SCSI HD: can I force mount a partition?
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Hello,
Copy the whole hd to another disk or an ftp server. This makes sure that
another disk failure won't destroy any more data. If you know the exact
start/end of the partition, you can mount it using something like this:
losetup -o start_position_in_bytes /dev/loopX image
mount /dev/loopX /mnt

regards
        Wolfgang


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