pve6to7 WARN: unexpected running and installed kernel

[yvrpete]

Hi,

I'm running a 3 node cluster here. I'm all caught up to 6.4 and was going to update to 7 but ...

When I run pve6to7 on one of the nodes I get a warning message:
Checking running kernel version..
WARN: unexpected running and installed kernel '5.0.15-1-pve'.

A check shows:
root@proxmox-jr:~# pveversion -v
proxmox-ve: 6.4-1 (running kernel: 5.0.15-1-pve)
pve-manager: 6.4-13 (running version: 6.4-13/9f411e79)
pve-kernel-5.4: 6.4-5
pve-kernel-helper: 6.4-5
pve-kernel-5.0: 6.0-11
pve-kernel-5.4.128-1-pve: 5.4.128-2
pve-kernel-5.4.73-1-pve: 5.4.73-1
pve-kernel-5.0.21-5-pve: 5.0.21-10
pve-kernel-5.0.15-1-pve: 5.0.15-1

So there are other kernels there - but it seems stuck on the older one. How do I force it to use the new kernel? I thought just using:
apt update
apt install pve-kernel-5.4.128-1-pve
reboot

would have done it ... but nope. What am I missing here?

 

[oguz]

hi,

are you booting the host with UEFI (systemd-boot is selected if you chose ZFS for the rootfs) or GRUB?

maybe it's not updating the boot partition or the ESP correctly.

can you post the output from proxmox-boot-tool status?

 

[yvrpete]

Here you go:

root@proxmox-jr:~# proxmox-boot-tool status
Re-executing '/usr/sbin/proxmox-boot-tool' in new private mount namespace..
System currently booted with legacy bios
82EC-C35C is configured with: grub (versions: 5.0.15-1-pve, 5.0.21-5-pve, 5.4.128-1-pve, 5.4.73-1-pve)
root@proxmox-jr:~#

With that said..

It's an older laptop that is part of the cluster, and it is used for testing/trialing CT/VMs - or trying something more disruptive. I did some more digging into this one over the weekend - as it really shouldn't be that hard. Some of the history of this device kind of worked its way back into my mind:

1. When I originally installed Proxmox onto this one (I believe in the 5.x era) - the computer wouldn't boot after I had the Proxmox installation complete. It complained:

BootDevice Not Found
Please install an operating system on your hard disk.

I tried re-installing many times and always ended up in the same place (no errors during install though).

2. I suppose that somehow I figured out that I could get around this by installing grub onto a USB stick. I don't necessarily remember how/why I came to that conclusion - but it did/does work. I think I vaguely remember seeing somebody else with a similar problem get past it with this solution - but I can't find specifically where I saw that, or what exactly I did. I can still get the no boot device error message if I try to boot the PC without the USB installed.

Based on the above, I suppose this may be an unsupported configuration. If so, while not my preference - I could try installing 6.4 "from scratch" to see if it somehow resolves whatever was causing the issue with not booting (and I could try 7 as well) - if I do that, I suppose I should remove the laptop from the cluster first?

And if I still can't get it to work properly, perhaps it's just time to retire the laptop (and replace it with a newer something old).