I've been getting "can't delete" errors from trying to delete the world backup, which is in /usr/obj, which is a directory I delete old files from. The reason is that some programs, such as init, are not writable by root. So I tried to chmod them and found that they have the immutable flag set. What happens to them the next time I compile world and back up the old world?
Pierre -- loi mintu se ckaji danlu cu jmaji