[PVE-User] Serial console and proxmox-boot-tool...

Stoiko Ivanov s.ivanov at proxmox.com
Thu Dec 30 17:12:36 CET 2021


On Thu, 30 Dec 2021 16:26:11 +0100
Marco Gaiarin <gaio at lilliput.linux.it> wrote:

> Normally i define serial console (eg, virtual one, iDRAC or iLO) in grub
> with:
> 	GRUB_TERMINAL="console serial"
> 	GRUB_SERIAL_COMMAND="serial --unit=0 --speed=115200"
> and when i run 'update-grub' they warn me:
> 	root at sdpve2:~# update-grub
> 	Generating grub configuration file ...
> 	W: This system is booted via proxmox-boot-tool:
> 	W: Executing 'update-grub' directly does not update the correct configs!
> 	W: Running: 'proxmox-boot-tool refresh'
> this settings are still effective? Or i need to setup these stuff
> specifically for proxmox-boot-tool?

if the system is indeed booted with grub (legacy BIOS) instead of
systemd-boot (UEFI) - then you just need to run
`proxmox-boot-tool refresh` (as the warning suggests)

if the system is booted with systemd-boot - then you need to configure the
kernel commandline parameters in /etc/kernel/cmdline (instead of
/etc/default/grub) (see [0])- the bootloader screen itself will be on the
serial terminal, if it's configured in the UEFI/BIOS settings on the
machine itself.

I hope this helps!

[0] https://pve.proxmox.com/pve-docs/chapter-sysadmin.html#sysboot

> And if, where and how?
> Thanks.

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