System shuts down after login.

[pauhn]

CentOS 5.5

After I login as root, it displays the MOTD and shuts down. During the bootup process it says that Runlevel is set to 0. I checked through init and inittab, the runlevel was still 3. I didn't think this would be it because I'm already logging in, but I figured I'd try. I went through rc.sysinit, rc.local, shadow and profile and I cannot find a reason for it.

What could be causing this?

[Schmidt]

Try to explore kernel logs of your system (booting from live cd). You should get '/var/log/dmesg' and '/var/log/messages'. And if you suppose that something switch your runlevel after login, try to look into '~/.bashrc' file - this file is executed by Bash after user login.

[indiver]

if possible try to check the /etc/passwd file . In the passwd file go to root entry and check the bin path of root. Accidentally it may have shutdown path /sbin/shutdown instead of login path as /sbin/login.

[pauhn]

someone put 'shutdown -h now' in .bash_profile of the root user, of which only a handful of users have access to.

Thanks for the help!

[Schmidt]

You're welcome