某日，我心血来潮改了用了很久的ROOT密码，
another day，我发现我忘记我改成什么了？
who can help me?
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But you must can touch the machine phisicallly,not remotely
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single user mode？？？？？？
LINUX 下面是BOOT -S 然后PASSWD就可以改密码了，but what about freebsd?
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while booting ,it appears "boot ... 9 seconds",then press any key ,type boot -s
that's OK
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boot -s
mount -u /
mount /etc
passwd
ready ……………………go
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thanks a lot!
更多内容请看PCdog.com--电脑密码设置手册专题
