CentOS 7 VM won't boot after migration to Proxmox

JaredBusch

I am doing cleanup/consolidation of my home setup.

My primary home virtualization platform was KVM on Fedora, managed mostly with Virtual Machine Manager from my desktop.

I have 2 other systems running Proxmox, but they are super old and crappy.

I am going to convert my main system to Proxmox, but I need to migrate of course. Everything migrated and works fine except for the two old CentOS 7 systems I have on it. They migrated and the VM will power on, but they lock up on boot.

One locks up right at the start

The other actually boots a bit before locking up.

Sure, I plan on getting the workloads migrated to new virtual machines or something, but before that, I simply want them migrated.

Any clues? It is only these two CentOS 7 VMs.

JaredBusch

@JaredBusch said in CentOS 7 VM won't boot after migration to Proxmox:

Let me kick it and see.

Did not work.
It booted into dracut recovery, so it did make a difference.

I gave up and booted the original virtual machines and migrated the workload to new systems.

Eric Ross

@JaredBusch Just a guess since I haven't used Proxmox for years. I just saw a post elsewhere about a problem running AlmaLinux 9.1 where the CPU had to be changed from Default (kvm64) to Host.

JaredBusch

@Eric-Ross said in CentOS 7 VM won't boot after migration to Proxmox:

@JaredBusch Just a guess since I haven't used Proxmox for years. I just saw a post elsewhere about a problem running AlmaLinux 9.1 where the CPU had to be changed from Default (kvm64) to Host.

Did not think to try "host" I left it on kvm64 or I used the model that matched the old server. Let me kick it and see.

JaredBusch

@JaredBusch said in CentOS 7 VM won't boot after migration to Proxmox:

Let me kick it and see.

Did not work.
It booted into dracut recovery, so it did make a difference.

I gave up and booted the original virtual machines and migrated the workload to new systems.

Eric Ross

@JaredBusch Ah, too bad that wasn't the fix.

JaredBusch

@Eric-Ross said in CentOS 7 VM won't boot after migration to Proxmox:

@JaredBusch Ah, too bad that wasn't the fix.

I didn't bother at the dracut point. I likely could have recovered the system. I simply decided to stop putting off the migration of those workloads.

They were still running CentOS 7 after all.

Solved CentOS 7 VM won't boot after migration to Proxmox