I want to backup my /home partition on /dev/sda6 using partclone, a command line utility. To do so, I first have to unmount the partition that I want to backup. Most of the time, this is easy, but /home is used by so many processes that it can't be unmounted without first killing all those processes.
So, the thing I'm looking for is a way to boot Ubuntu, without mounting /home, so I can back up the not-mounted /dev/sda6 partition. Is that possible?
To be clear, it would be nice if this special boot could be 'one-time-only'. So I'm not looking for ways to change /etc/fstab in such way that /dev/sda6 won't be mounted. That's because that would require me to change /etc/fstab twice each time just to make a backup.
I'm aware of the fact that there are other backup solutions available, such as deja-dup. I'd like to use partclone, though.
