how can I check if two directory are in the same partition in ubuntu

Question

I forget whether I have mounted / and /boot to the same partition in my ubuntu 10.04. What command can I use to check it out? Thank you very much!

Answer 1

Try df. It will give you the free space per partition and also its mount point.

Answer 2

Use the mount command itself. You can pipe through grep to de-clutter if necessary:

me@banshee:~$ mount | egrep 'on /(boot)? '
/dev/mapper/banshee-root on / type ext4 (rw,errors=remount-ro)
/dev/sdc1 on /boot type ext2 (rw)