[Bug 80746] Re: [baobab] add options to analyse by filesystem

[Peter Berry]

By "filesystem" I don't mean "the entire filesystem", I mean "one of my
filesystems".

Suppose /etc/fstab looks like this:

/dev/hda1 / ext3 defaults 1 1
/dev/hdb1 /home ext3 defaults 1 2
/dev/hda5 /var ext3 defaults 1 4
proc /proc proc defaults 0 0
/dev/cdrom /media/cdrom auto user,noauto 0 0

Suppose / is 20 GB and 90% full, and /home is 80 GB and 25% full. If I
analyse /, I want to see what proportion of that 18 GB various files
take up, and since stuff in /home doesn't contribute to that, I don't
care what's in it. I don't want to see that stuff in /home is taking up
20% of /, because /home is not, in this sense, part of /.

In particular, /dev/cdrom is not always there, so the percentages you
get for / depend on whether you have something in the CD drive or not;
and /proc is generated dynamically, so its size is meaningless.

-- 
[baobab] add options to analyse by filesystem
https://launchpad.net/bugs/80746