Backup your hard drive with dd

sudo dd if=/dev/sda of=/media/disk/backup/sda.backup
This will create an exact duplicate image of your hard drive that you can then restore by simply reversing the "if" & "of" locations. sudo dd if=/media/disk/backup/sda.backup of=/dev/sda Alternatively, you can use an SSH connection to do your backups: dd if=/dev/sda | ssh dd of=~/backup/sda.backup

By: bandit36
2009-02-27 20:23:37

What Others Think

If you zero out the blank space first with :dd if=/dev/zero of=/tmp/ bs=8M; rm and then use this command to gzip it, you get great space savings: dd if=/dev/hda conv=sync,noerror bs=64K | gzip -c > /mnt/sda1/hda.img.gz
ozymandias · 701 weeks and 5 days ago
@ozymandias, I like the zeroing out of unused blocks... crude, but useful. As for backing up a filesystem that's not broken in some way, you'd better of using dump or xfsdump.
bartman · 701 weeks and 5 days ago
There are certain easy ways to back up the hard drive with DD. You can make use of the details helpful hints which is given here.So that thank you so much for providing very useful post today which will be beneficial for any people
leonamargret · 63 weeks and 3 days ago
seofox · 37 weeks and 6 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

You must be signed in to comment.

What's this? is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.


Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for: