Cannot shutdown or reboot properly via LISH

I've searched a while now and I've found plenty of threads where people haven't been able to "shutodown -r" from their console and I understand that issue pretty well–but that's not what's happening here. Just the opposite, actually. When I issue a shutdown or reboot command via the lish console, my linode never really shuts down, but rather it just waits for about 2 minutes and then halts and starts to boot. I don't remember making any changes that would affect this, but I think I may have messed up my inittab. Any ideas on what I should check next?