KVM VM will not boot (boot sector corruption or partition corruption)

[RodinM]

Hello.
After backup some Linux KVM VMs regularily seem to have done hard reset and cannot boot anymore.
I fix these VMs by booting from live CD and using gpart -W /dev/sda /dev/sda and grub install
Is there a way to fix that?
PVE Manager version 5.3.7

 

[manouandry]

Hi,
Same problem for me.
I have Centos-7 and Ubuntu-18 VM, They work fine after the installation.
But after few days (due to the backup i guess), I am unable to boot the VM (No bootable Media Found).
After checking with Rescue Linux, i found that my partition table was erased.

At the beginning I thin that it was due to a misconfiguration in the VM. But the same behavior on the 2 VM make me think that the problem is on Proxmox.

Please let me know if someone found a solution