Rocky 9 boot resolution

Teams Infrastructure
1

Hello everyone, does anyone know a solution.

Lenovo Thinkpad P15s Gen2i
32 GB RAM
Mesa Intel® Xe Graphics (TGL GT2) / Mesa Intel® Xe Graphics (TGL GT2)
Rocky Linux 9.0 (Blue Onyx) 64-Bit
Display Resolution 3840x2160 (16:9)

I want to change the boot resolution because it is very small.
I've tried different ways with no success. (from Google)
/etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet"
GRUB_CMDLINE_LINUX=""
GRUB_GFXMODE=1920x1080x32
GRUB_GFXPAYLOAD_LINUX=1920x1080x32

grub2-mkconfig -o /boot/efi/EFI/rocky/grub.cfg

Does somebody has any idea ?

Many Thanks.
2

I don’t know solution to the issue, but …

On AlmaLinux 9 the equivalent of /boot/efi/EFI/rocky/grub.cfg
does look like:

# cat /boot/efi/EFI/almalinux/grub.cfg
search --no-floppy --fs-uuid --set=dev 5c2...a1d
set prefix=($dev)/grub2

export $prefix
configfile $prefix/grub.cfg

That is, it includes /boot/grub2/grub.cfg and symlinks in /etc/ both point to /boot/grub2/grub.cfg too:

$ ls -l --no-g -d /etc/grub*
lrwxrwxrwx. 1 root   22 Jun 18 15:41 /etc/grub2.cfg -> ../boot/grub2/grub.cfg
lrwxrwxrwx. 1 root   22 Jun 18 15:41 /etc/grub2-efi.cfg -> ../boot/grub2/grub.cfg
drwx------. 2 root 4096 Jun 23 08:26 /etc/grub.d

In other words, I can run grub2-mkconfig -o /boot/grub2/grub.cfg whether I have UEFI or legacy setup.

That said, one (Ubuntu) page suggests:

GRUB_GFXMODE=640x480
GRUB_GFXPAYLOAD=keep
GRUB_TERMINAL=gfxterm

and another reveals more about syntax:

GRUB_GFXMODE=1024x768x32,auto
3

I didn’t find a way to change the resolution but you can change the font. See this Fedora forum thread linked below. Post #10 or there abouts is the solution.
Increase boot menu font size

4

Thanks for the hint. I found a solution.
Edit /etc/default/grub
…
GRUB_FONT=/boot/grub2/fonts/unicode.pf2
GRUB_TERMINAL=gfxterm
then
grub2-mkconfig -o /boot/efi/EFI/rocky/grub.cfg

result: the Grub menu has a larger font

5

Many thanks for the hint.
it doesn’t work but the entry below worked.
…
GRUB_FONT=/boot/grub2/fonts/unicode.pf2
GRUB_TERMINAL=gfxterm
…
grub2-mkconfig -o /boot/efi/EFI/rocky/grub.cf