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Using dd to duplicate disks
- Thread starter TechTrainer11
- Start date
thank you I meant how is the format of dd used
dd if=/dev/sda MD5 of=/root/sdb -bs=25k conv=noerror
dd if=/dev/sda MD5 of=/root/sdb -bs=25k conv=noerror
There isn't a way to run MD5 (or any other hashing algorithm) directly with dd.
If you'd like to validate your copy, I'd suggest the following, and visually compare the hashes.
for SHA256
If you'd like to validate your copy, I'd suggest the following, and visually compare the hashes.
Bash:
$ sudo dd if=/dev/sda of=/dev/sdb bs=64K conv=noerror,sync status=progress
$ sudo md5sum /dev/sda
$ sudo md5sum /dev/sdbfor SHA256
Bash:
$ sudo shasum -a 256 /dev/sda
$ sudo shasum -a 256 /dev/sdb