how to install 6.8.12-8-pve

[stanthewizzard2025]

Hello

I have strange issues with 6.8.12-9-pve and unifi (switch and ap going nuts / switch are attached to proxmox 2 with opnsense on it)
apt install pve-kernel-6.8.12-8-pve
But rebooting I have

pve 6.8.12-8pve error bad shim signature

Thanks for help newb on that

PS: also interested to revert to 8.3 stock kernel

 

[fba]

Hello,

quick and dirty: disable secure boot in BIOS

For a real solution the information in this thread might be helpful: https://forum.proxmox.com/threads/proxmox-on-debian-secure-boot-setup.163513/

 

[stanthewizzard2025]

on proxmox 2 (ms-01) I went without issues
on proxmox 1 (ms-01 also) totally unable to install 6.8.4
Don't want to disable secure bios
Not sure to be able to follow the tuto as it's not proxmox over debian but a debian install

god o god

I'm lucky the opnsense 1 is on proxmox 2 with 6.8.4 (unifi is stable with it)
Thank you

 

[stanthewizzard2025]

ok
nailed it

apt install proxmox-kernel-6.8.12-4-pve-signed

Now I'm back to a kernel that works