I am using CentOS 6.3 and am logged in a root.
When I create a hard link by doing this:
ln /root.hdd /somedir/root.hdd
That works fine, the inode shows the same between the two files and everything functions as normal. But when I try to delete the link, It will not allow me to.
rm /somedir/root.hdd unlink /somedir/root.hdd umount /somedir/root.hdd
None of these work. I get "Operation not permitted" even though im root, and even using sudo doesn't help.
root.hdd is a openvz file that contains a vm's filesystem in a single file. Which is later mounted using ploop ( lookback device ).