First thanks a lot for this good how-to !
I have a little question :
What if my system has a RAID1 system mounted as / in /dev/md0 (/boot is /dev/md1) ?
Original backup line :
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md1 : active raid1 sdc2 sda2(S) sdd2
3976000 blocks [2/2] [UU]
md0 : active raid1 sdc1 sda1(S) sdd1
308592448 blocks [2/2] [UU]
unused devices: <none>
Should I use the RAID name :or the hard drive : Thanks in advance for your time.
if=/dev/sda conv=sync,noerror | ssh user@dest "gzip -9 > /path/to/image/ubuntu_linux.img.gz"