ML 1.2pre6,突然不能添加用户了

吴文官

[code:1]
[wuwenguan@wuwenguan wuwenguan]$ su
Password:
[root@wuwenguan wuwenguan]# /usr/sbin/adduser pub
adduser: unable to lock password file
[root@wuwenguan wuwenguan]# ls /etc/passwd*
/etc/passwd  /etc/passwd-  /etc/passwd.lock
[root@wuwenguan wuwenguan]#
[/code:1]