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OpenVZ Can’t umount (unmount) device or resource busy

Hi openvz

The error you may see in this instance would say “Can’t umount /var/lib/vz/root/OpenVZID device or resource busy”, or “Can’t umount /var/lib/vz/root/222: Device or resource busy TASK ERROR: command ‘vzctl umount 222 ’ failed: exit code 51″, in this case the container being 222.  Here’s how I was able to fix it … 

In the examples below I will be using 222 for the OpenVZ container ID, just change that to whatever container you are troubleshooting.

 

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