no utmp entry. You must log in from lowest level -sh

One or more of the system login record files /etc/utmp, /etc/wtmp, and /etc/utmpx have been corrupted. They can be emptied without affecting the system. Perform these steps:

1. Log in as root and enter single user mode.

2. Delete the contents of these files by executing the these commands:
   
   > /etc/utmp
   > /etc/wtmp
   > /etc/utmpx

3. Shut down the system and reboot the system.