when I installed Ubuntu10.04, I create a partition /backup.
After I installed Ubunut, I always failed when I try to put some files into /backup via my account.
I try to assign permission in /etc/fstabm, it also doesn’t work.
Any idea to solve this problem via my usual account, not root.
If you created this partition during setup just run
sudo chown <your username> /backup:to own this directory is simple solution to your problem.