在FreeBSD中修改帐号密码有时候会出现一些错误，针对passwd: pam_chauthtok(): error in service module这样的错误提示，简单整理了以下解决方案：
错误提示：

代码如下 复制代码
kiccleaf# passwd kiccleaf
Changing local password for kiccleaf
New Password:
Retype New Password:

/: write failed, filesystem is full
passwd: pam_chauthtok(): error in service module

修改方法：(www.111cn.net)
1.把/etc/passwd 文件给所有权限
2.修改好密码
3.恢复文件相应权限

代码如下 复制代码
kiccleaf# ll /etc/passwd
-rw-r--r-- 1 root wheel 1509 Apr 23 14:35 /etc/passwd

kiccleaf# chmod 777 /etc/passwd
kiccleaf# passwd kiccleaf
Changing local password for kiccleaf
New Password:
Retype New Password:

kiccleaf# chmod 644 /etc/passwd

from:http://www.111cn.net/sys/freebsd/66713.htm

FreeBSD修改root密码错误passwd: pam_chau(www.111cn.net)thtok(): error in service module from:http://www.111cn.net/sys/freebsd/66713.htm