backup to qcow2 (or anything VM compatible) using dd (anything)
 

Hi, my laptop has a cracked screen and is going to ship for repairs. I'd like to backup the data I have oon it.I'm thinking "tar -cpjf" would do the trick, but a crazy thought entered my mind : backup the entire system to a virtual disk (with a format like qcow2) and then be able to run it from a VM (like qemu). is that even possible?
I mean, backing up your system so that it is vm-ready would be really cool. assuming sda5=root
or would that just create a file the size of the partition? would it run anyway?

The optimal shipping time is less than 24 hours away, so a quick answer would really be appreciated.

Serafean

'dd if=/dev/sda of=/path/to/humongous/storage/disk.dd; qemu-img convert -c -f raw -O qcow2 /path/to/humongous/storage/disk.dd /path/to/humongous/storage/disk.qcow2;'?

I don't even convert them when I use qemu. I just dd the disk and use it as hda. I don't rename the file though. It really isn't a qcow2 file just by dding it.

So a qcow2 file can only be written to from a VM? noted.
Thanks UnSpawn, personnally I'd replace the first ; with &&. Just seems more failure-safe.