working on a server, operating system is SLES 11.4 x86-64.There are many files, and folders, under the /tmp directory.As root, I cannot remove anything under /tmp.  Such as rm -f sort5BtEdh or rm /tmp/sort5BtEdh it returns rm: cannot remove /tmp/sort5BtEdh : Operation not permitted.what would cause this, and how do i make it so the root user at least can delete files and folders under /tmp ?also, much is owned by root.root.  Other files and/or folders is owned by gdm.gdm  and also by my user account  ron.usersEven if I su or login via ssh or sit at the console, as the owner of the file, I get the same result operation not permitted on anything under /tmp.
as root cannot remove file under /tmp operation not permitted
rm