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LINUX HOWTO | 2 Replies More Bad Disk This article I am trying to explain how to http://linoxide.com/how-tos/inputoutput-error-bad-blocks-how-to-restart-linux/ deal with " Input/output error " when you initiate any commands in http://h20564.www2.hpe.com/hpsc/doc/public/display?docId=mmr_kc-0102037 Linux. I have pointed some examples that reports similar error. # du -bash: /usr/bin/du: Input/output error #mkdir sampledir mkdir: cannot create directory `sampledir': Input/output error Input/output error while running the command mostly due to two reason. Either it could be bad blocks on the disk or someone hacked output error your machine. In this situation first suggestion would be to check /var/log/messages for any disk related alerts (might see some sense key alerts). tail -n 100 /var/log/messages tail -f /var/log/messages If you notice any disk issues , try any disk utility to confirm this. One option would be use smarttools. You can check smartool option to fix bad blocks. If you input output error already installed it you can take the advantage of that. Next immediate action would be take backup of your system. Good if you already have it :-). If you have good backup its safe to reboot.If your system was hacked there are chances they might messed up your file and system would not work after reboot. You can also try fsck but it really dont fix most time if it bad block issue. Fsck can fix only if it related to any filesystem related issues. Usually fsck will fail in between as when it try to read the file at bad block. Now if try to reboot , it can also give the same output. You can try init 6. # reboot bash: /sbin/reboot: Input/output error # shutdown -r now bash: /sbin/shutdown: Input/output error 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 You might also likeHow To Fix / Repair Bad Blocks In Lin
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