Use grub-md5-crypt to generate the md5 hash. After edit /boot/grub/grub.conf and insert password --md5 your_hash_here With this option users couldn't edit grub options, so they couldn't neither boot in single user because they should provide the password in this case. On Jan 12, 2008 6:01 AM, Scott Ehrlich <scott at mit.edu> wrote: > On a C4.4 system, I want to add md5 passwords for the grub boot menu to > prevent users from making selections other than the default boot options. > > I also want to add md5 passwords when attempting single user mode boots > (may be answered by first request). > > The same for C5 systems. > > > Thanks. > > Scott > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >