"su" commands not working properly
I'm new to this forum and Linux. I'm using Suse Linux OS. It worked fine as if it's always but this morning I left my computer on and went off somewhere. When I got back and run "su" command then I found out that it's not working anymore even though I supplied the right password. I found a similar post here in this forum. I've tried that solution too though it's still not working. I changed /bin/su permission to 777 and I also checked /etc/passwd and also /etc/group , both of them are in readable format too. If I wanna be root I need to reboot and log in as root again and this is the only way I can be root at this moment and it's very inefficient. Please help me out of this.
Thanks all in advance.
P.S The error message is "su: cannot set groups: Operation not permitted", it appears whenever I run su.
Last edited by htetnaing; 08-15-2008 at 09:24 AM.