I'm logging in as root to an embedded system running Linux, on the console, as root. After issuing the "Last Login" line, the console hangs. It echoes any characters I type but otherwise I get no response. If I hit ^C, I'm back to the login prompt, which implies that the login session has not yet started.
Any clues to what might be going wrong here? I believe that rebooting will recover, and if not, re-imaging via USB is an issue, but I want to get to the root of what's happening here to fix the underlying problem.
The system runs bash/busybox for sessions, if that helps. I'm not sure what linux distro; it's obfuscated by the manufacturer.
The "Last login" timestamp is being updated each time I try to log in.
In this case, networking is not configured so I can't try ssh.