lianliming wrote: > After a system halt, i find all the users in my system seems been > lost. I can't login in as any id. > I tried to use linux single mode to boot. but after system setup, > the system give me a prompt said "you have no name". I find my > "/etc/passwd" file has become a binary file full of something unreadable. Have you tried restoring the backup at /var/backups/passwd.bak? Adam