Can I safely add / to the disklist?

What I mean is, will Amanda automatically exclude /dev, /mnt, /proc ?

Also in / I have a mounted disk (/backup).

webserver:~ # df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda2 33G 14G 17G 46% /
udev 1014M 128K 1014M 1% /dev
/dev/hdc1 76G 30G 46G 40% /backup

Will Amanda also back that up, or will it stay on one partition?