Re: Recovering data from duff CDROM ?

On 2009-11-04 12:14, Mike Jones wrote:

#-> dd if=/dev/hda of=/tmp/disk.out
dd: reading `/dev/hda': Input/output error
0+0 records in
0+0 records out
0 bytes (0 B) copied, 1.39585 s, 0.0 kB/s about as far as I've got with this disk.

That looks bad, just as the cdrom never load properly.

If you have cdrdao installed you should get some good
info with the command cdrdao disk-info

I did the same test that you did with my rescue CD,
and the result was:

# dd if=/dev/cdrom of=/tmp/rescuecd.iso
332752+0 records in
332752+0 records out
170369024 bytes (170 MB) copied, 55.2196 s, 3.1 MB/s
# mkdir /x
# mount -o loop,ro /tmp/rescuecd.iso /x
# ls -l /x
total 130510
drwxr-xr-x 2 root root 2048 2007-11-25 19:04 bootdisk
drwxr-xr-x 3 root root 4096 2007-11-30 19:51 isolinux
drwxr-xr-x 2 root root 2048 2007-11-20 22:07 syslinux
-rw-rw-rw- 1 root root 133632000 2007-11-25 19:12 sysrcd.dat
-rw-r--r-- 1 root root 45 2007-11-25 19:12 sysrcd.md5
-rw-r--r-- 1 root root 876 2007-11-16 09:28 usbstick.htm
# umount /x

So that is what you should expect, but try with ddrescue instead.


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