2
I'm going to buy a second disk for backup, the same size as my laptops. I want to mount it in a casing via usb and backup an entire hdd every soemtime. That's because I want the posibility to just switch drives in case of something goes wrong. I'm using Linux and obviously the right tool seems to be dd. The thing is that my laptop drive has a speed of around 50-70 MB/s and usb 2.0 is 57 MB/s. So to copy my 250GB disk should take me more than 1 hour if I'm lucky. I can't wait this much. I want some differential backup. I read one of JWZ articles. In it he gives more details for using rsync on Mac. He writes that there is possibility of making rsync'ed disk bootable.
So my question is: how to make rsync'ed hdd bootable under Linux or are there other 'quick backup' tools for Linux that would allow me to just swap drives? Or should I just stick to dd :( ?
1Obviously your first backup will still take some time, and I don't think you're using the full 250GB are you? That said, I would create a
dd
backup first, and then usersync
to update the differential data. – None – 2011-02-16T23:12:28.187you sould put that as answer .. short and painless solution – matthias krull – 2011-02-16T23:19:09.570
Usb 2.0 has a theoretical bandwidth of 480 Mb/s, but real world speeds are going to be 25-30 MB/s. (Yes, I'm using both Mb and MB in this comment) – afrazier – 2011-02-16T23:22:18.270
@randolph-potter I think that will work. I just need to learn more on rsync. I dont quite understand how it works. Post is as answer. I will accept it once I check it in reality. – hks – 2011-02-16T23:28:08.617
Posted as an answer. – None – 2011-02-17T01:10:18.490