I got some problem with my Centos 7 VM on Xencenter 7. Most of time when i try to reboot my VMs, they crash at rebooting and enter in emergency mode. As suggested i use
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journalctl -xb
and in the result i saw
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job home.mount/start failed with result 'dependency
job dev-mapper-cl\x2dhome.device/start failed with result 'timeout'
or
no memory reserved for crash kernel, starting kdump failed
failed to start crash recovery kernel arming.
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job dev-mapper-cl\x2dhome.device/start time out
I don't understand why the home partition disappear and how to prevent it or fix it .
Now i cannot login with the normal user and cannot access to home