Ubuntu Single User Mode Without Login

 

 Configure Single User Mode (Rescue Mode) in Ubuntu Without

Requiring Login Like Red Hat Enterprise Linux

 

Debian and therefore Ubuntu both require root password when booting into
single user mode or recovery mode.  Red Hat allows access from the console
into single user mode without a password.  This is handy when things get
messed up preventing access to the auth subsystems.  To accomplish the
same behavior under Ubuntu, edit the /etc/inittab file and change the line

~~:S:wait:/sbin/sulogin

to

~~:S:wait:/bin/bash