Input/Output Error: Bad Blocks: How To Restart Linux

-bash: /usr/bin/du: Input/output error

$ du
-bash: /usr/bin/du: Input/output error
$ reboot
bash: /sbin/reboot: Input/output error
$ shutdown -r now
bash: /sbin/shutdown: Input/output error

记得之前在sina的时候测试机也出现过类似的问题,当时是直接给运维同事电话重启了。。。

If the above reboot commands doesnot work try either forced reboot or shutdown

# Forced Reboot
echo 1 > /proc/sys/kernel/sysrq
echo b > /proc/sysrq-trigger

# Forced Shutdown
echo 1 > /proc/sys/kernel/sysrq
echo o > /proc/sysrq-trigger

see also for details