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Backup/restore hard drive using dd tool



I try to make copy (backup) my hard drive with OS (linux). I did it in the following way:

dd if=/dev/sda conv=sync,noerror bs=64K | gzip -c > /mnt/fs/sda.img.gz

where I mounted file share under /mnt/fs.

Then I want restore my copy:


gunzip -c /mnt/fs/sda.img.gz | dd of=/dev/sdc conv=sync,noerror bs=64K

and my OS is crashed.. (not working..)

I want to mark - I made the copy from working OS. My hard drive was detected as sda. Restore the copy I made from linux-liveCD and there my hard drive was mounted as sdc. It could be a problem?




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