电源问题

蓝梦

不能正常关机，能正常重启，注销。使用
[code:1]halt
shutdown -h now
poweroff
init 0[/code:1]均不凑效.
如何解决 谢谢!
贴出关机控制台显示:
[code:1]
Stopping system message bus:[ok]
Stopping cups:[ok]
Stopping sshd:[ok]
Shutting down SMB services:[ok]
Shutting down NMB services:[ok]
Stopping crond:[ok]
Shutting down kernel logger:[ok]
Shutting down system logger:[ok]
Shutting down interface eth1:[ok]
Shutting down loopback interface:[ok]
Starting kill all:[ok]
Sending all processes the TERM signal...
Sending all processes the KILL signal...
Saving random seed:
Syscing hardware clock to system time:
Turning off swap:
Turning off quotas:
Unmounting file systems:
halting system...
md: stopping all md devices
md: mdo saitched to read-only mode
Shutdown: hdd
Shutdown: hda
power down.[/code:1]