msulogin is a sulogin for multiple root accounts.
sulogin is the single user mode login program used to force the console user to login under a root account before a shell is started.
Unlike other implementations of sulogin, this one supports having multiple root accounts on a system.
msulogin has been developed as a part of Owl and is being made available separately primarily for use by other distributions. Currently, msulogin supports only systems with getspnam.