Changing EFI boot order via API
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Hello,
I would like to be able to change the boot order of an EFI VM via
libvirt API. Specifically, I am looking into configuring a VM to boot
over HTTP UEFI Boot or HTTPS UEFI Boot (also available as HTTP IPv4 in
the firmware).
Is this possible? I cannot find anything relevant in the documentation. Thanks.
--
Later,
Lukas @lzap Zapletal
On 6/12/23 15:38, Lukas Zapletal wrote:
Hello,
I would like to be able to change the boot order of an EFI VM via
libvirt API. Specifically, I am looking into configuring a VM to boot
over HTTP UEFI Boot or HTTPS UEFI Boot (also available as HTTP IPv4 in
the firmware).
Is this possible? I cannot find anything relevant in the documentation. Thanks.
It is possible. Just use <boot order=''/> for individual devices, or:
<os>
<boot dev='net'/>
</os>
https://libvirt.org/formatdomain.html#specifying-boot-order
https://libvirt.org/formatdomain.html#bios-bootloader
Michal
It is possible. Just use <boot order=''/> for
individual devices, or:
Thanks for the reply, Michal. As I said, I am looking into changing
boot order within the firmware, PXEv4, PXEv6, HTTPv4 and HTTPv6 is the
default order I don’t like (as there is no PXE on my network). I have
found two solutions tho.
virt-fw-vars -i /usr/share/OVMF/OVMF_VARS.fd --set-boot-uri
http://nuc.home.lan:8000/boot/shim.efi -o
/var/lib/libvirt/qemu/nvram/mydomain_VARS.fd
This command allows me to do HTTPv4 directly (once). It cannot be done
via the libvirt API though.
But then kraxel recommended me to configure PXE to return a
non-existing file, this makes the EFI firmware skip the first two
options pretty quickly (in 2 seconds) so that solved the problem
pretty much.
Thanks all!
--
Later,
Lukas @lzap Zapletal
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Lukas Zapletal -
Michal Prívozník