I have had an external HD failure and all my family pictures are there. Yes, I
know that I'm a big beast ... If you can believe ... there are no backups.
After the event, I tryed ddrescue but it doesn't read the disk. errsize:
increases, rescued: remain zero and output is also zero.
I have notice that when the external HD is plugged in, it is recognized by
Linux for a few seconds (~30 seconds), and during this time ddrescue can read
it content.
After that few seconds, it seems that the operating system filters out the disk
and it becomes invisible to ddrescue, fdisk and also dd.
Now, I would kindly ask you to give me ideas to begin this rescue.
What should I set in linux??? Maybe to bypass SMART or something else!
Feel free is something is not clear.
Best Regards, Rogério.
Fdisk:
====
[root@rcslinux log]# date;fdisk -l
Sat Mar 30 14:17:11 BRT 2013
Disk /dev/sda: 21.5 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000c2930
Device Boot Start End Blocks Id System
/dev/sda1 * 1 2611 20970496 83 Linux
Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xa4b57300
Device Boot Start End Blocks Id System
/dev/sdb1 1 60801 488384001 7 HPFS/NTFS
[root@rcslinux log]# dd if=/dev/sdb of=/dev/null count=512
512+0 records in
512+0 records out
262144 bytes (262 kB) copied, 7.22283 s, 36.3 kB/s
[root@rcslinux log]# date;fdisk -l
Sat Mar 30 14:17:45 BRT 2013
Disk /dev/sda: 21.5 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000c2930
Device Boot Start End Blocks Id System
/dev/sda1 * 1 2611 20970496 83 Linux
[root@rcslinux log]# dd if=/dev/sdb of=/dev/null count=512
dd: reading `/dev/sdb': Input/output error
0+0 records in
0+0 records out
0 bytes (0 B) copied, 0.197054 s, 0.0 kB/s
[root@rcslinux log]#
/var/log/messages:
============
Mar 30 13:36:13 rcslinux kernel: Buffer I/O error on device sdb, logical block 3
Mar 30 13:36:15 rcslinux kernel: sd 3:0:0:0: [sdb] Result: hostbyte=DID_OK
driverbyte=DRIVER_SENSE
Mar 30 13:36:15 rcslinux kernel: sd 3:0:0:0: [sdb] Sense Key : Aborted Command
[current]
Mar 30 13:36:15 rcslinux kernel: sd 3:0:0:0: [sdb] Add. Sense: No additional
sense information
Mar 30 13:36:15 rcslinux kernel: sd 3:0:0:0: [sdb] CDB: Read(10): 28 00 00 00
00 00 00 00 08 00
Mar 30 13:36:15 rcslinux kernel: end_request: I/O error, dev sdb, sector 0
Mar 30 13:36:15 rcslinux kernel: Buffer I/O error on device sdb, logical block 0
_______________________________________________
Bug-ddrescue mailing list
[email protected]
https://lists.gnu.org/mailman/listinfo/bug-ddrescue
