Do you back up anything other than /etc and /home on a standard system?
In a Gentoo system nothing is really standard, so I backup everything
from / and then have a small exclude list with things like:
/dev, /proc, /sys, /exports, /var/cache/squid, /srv/BackupPC.
/var contains the most important files on a Gentoo system, if you loss
the portage installed software information your in a heap of trouble.
Goes both ways though backup of portages var information is less useful
without backup of everything installed.
I'm undecided about /usr/portage, I could save some time backing up
/usr/portage/distfiles, but it is easily generated content.
Minimal backup - if your willing to spend the hours on getting thing
back up and running.
/etc /root /home /usr/local /var
For now I think I'll do /etc, /root, /home, /var/lib/portage/world,
/usr/src/linux/.config, and anything specific I might need in
/usr/local. What else am I missing out on in /var? I'm OK with a
full reinstall for now.
- Grant