dd backup fails

[office politics]

a dd backup is failing due to read write error. is there anything I can do to diagnose?

it should copy 3gb

sh-3.1# dd if=/dev/hda1 | gzip -c | split -b 2000m - /mnt/share/Data.dd.
dd: reading `/dev/hda1': Input/output error
1837792+0 records in
1837792+0 records out
940949504 bytes (941 MB) copied, 576.656 seconds, 1.6 MB/s
sh-3.1# dd if=/dev/hda | gzip -c | split -b 2000m - /mnt/share/Data.dd.
dd: reading `/dev/hda': Input/output error
1837792+0 records in
1837792+0 records out
940949504 bytes (941 MB) copied, 614.545 seconds, 1.5 MB/s

 

[kmote]

You have a /dev/hda? What OS is this?

 

[office politics]

os installed on the machine is win 2k pro.

i'm running knoppix 5.1 when executing the commands above.

The overall goal is to create a image of the machine and save it to a windows share which is located in mount share.

i'm faily certain /dev/hda is there because it starts copying data from the disk; noted by bytes copied in the output


i think i'll try running chkdsk to hunt for disk problems.

 

[Jayce]

Run chkdsk and see what it does. fsck from within knoppix on the same drive wouldn't be a bad idea either.

I don't have much experience with DD from command line, but did you ever consider Clonezilla LiveCD?

 

[office politics]

chkdsk didn't report any problems.

ill try fsck sometime soon.


are there any logs of what happens on the disk. something like dmesg, but i think dmesg is just for boot output.

i could try clonezilla, can it save to a windows share?

 

[Jayce]

chkdsk didn't report any problems.

ill try fsck sometime soon.


are there any logs of what happens on the disk. something like dmesg, but i think dmesg is just for boot output.

i could try clonezilla, can it save to a windows share?

I'm not positive about that. I've always used it locally to an external hard drive. I do remember when you hit the screen to select where the image gets saved there are a few options. I remember seeing Samba Server, SSH Server, and 2 or 3 others. I always just chose the default (local drive) and shot the image over to that. It's worth a shot to check out though, after all it's a free ISO and 1 blank CD. Maybe you'll catch some luck with it.