Wednesday, May 23, 2018

sudo systemctl hibernate

on Centos, I was trying to hibernate my machine:

sudo systemctl hibernate

A dependency job for failed. See 'journalctl -xe' for details.

journalctl -xe

Failed to write mode to /sys/power/disk: Operation not permitted

I removed "safe boot" option in the BIOS settings, and now I am able to hibernate! Amazing!

See also this, maybe "suspend" is cheaper safer and faster than hibernate...

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