How to UEFI HTTP boot VMs?

LXD
1

Hi!

If I understand correctly, LXD does support UEFI HTTP chainloading (https://ipxe.org/appnote/uefihttp) but it’s not clear to me how I would pass configuration (for example the URL for a ipxe script) to LXD in order to boot virtual machines based on the given configuration. Is this possible? Or, asked differently, how would I programmatically configure a LXD VM instance to boot via UEFI HTTP or PXE?

I run LXD 4.9 installed through snap.

Thanks.

2

You may be able to manually trigger it from the firmware menu by hitting ESC early in the boot sequence. If that doesn’t let you do it, then I suspect the answer would be to boot some kind of Linux distro, then use efibootmgr to modify the boot sequence, adding a suitable EFI call for your URL and then reboot onto that.