[lug] how to repair GPT

[Steve A Hart]

Sorry, I need more coffee.....

fsck /dev/sdd1
fsck from util-linux-ng 2.17.2
e2fsck 1.41.12 (17-May-2010)
Error reading block 914391040 (Attempt to read block from filesystem 
resulted in short read).  Ignore error<y>?


badblocks -s -v /dev/sdd1
badblocks: File too large while trying to determine device size


On 04/27/2011 12:23 PM, Aaron D. Johnson wrote:
> Steve A Hart writes
>> dmesg shows repeated messages like this:
>> --------------------------------------------
>>
>> Errataon LSI53C1030 occurred.sc->req_bufflen=0x1000,xfer_cnt=0x00
>> Errataon LSI53C1030 occurred.sc->req_bufflen=0x1000,xfer_cnt=0x00
>> Errataon LSI53C1030 occurred.sc->req_bufflen=0x1000,xfer_cnt=0x00
>> Errataon LSI53C1030 occurred.sc->req_bufflen=0x1000,xfer_cnt=0x00
>> Errataon LSI53C1030 occurred.sc->req_bufflen=0x1000,xfer_cnt=0x00
>> Errataon LSI53C1030 occurred.sc->req_bufflen=0x1000,xfer_cnt=0x00
>> sd 4:0:4:0: [sdd] Unhandled error code
>> sd 4:0:4:0: [sdd] Result: hostbyte=DID_SOFT_ERROR driverbyte=DRIVER_OK
>> sd 4:0:4:0: [sdd] CDB: Read(16): 88 00 00 00 00 03 68 71 7f f8 00 00 00
>> 08 00 00
>> end_request: I/O error, dev sdd, sector 14637170680
>
> Doesn't look too healthy.  What does "badblocks -s -v /dev/sdd" tell
> you about reading from the disk?
>
>> fsck from util-linux-ng 2.17.2
>> e2fsck 1.41.12 (17-May-2010)
>> fsck.ext2: Superblock invalid, trying backup blocks...
>> fsck.ext2: Bad magic number in super-block while trying to open /dev/sdd
>
> Is this filesystem really on /dev/sdd and not on a partition on that
> disk, say /dev/sdd1?  What does /proc/partitions say about the
> partitions on the /dev/sdd device?
>
> - Aaron
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-- 
Steve Hart
Systems Administrator
Colorado Center for Astrodynamics Research
University of Colorado Boulder
shart at colorado.edu
(303)492-8109