[bug#45225] [PATCH] gnu: grub: Fix unicode font loading when booting over TFTP.

[Stefan <stefan-guix@vodafonemail.de>]

Hi Danny and Ludo!

This patch got pushed and later reverted, as it is causing issues, because /gnu/store…-grub…/share/grub/unicode.pf2 is sometimes not visible when building the grub.cfg file.

To understand what is happening here, I modified the creation of the grub.cfg file to write the directory entries of /gnu/store visible at build time into a file.

While the /gnu/store/ on disk shows thousands of entries, when building grub.cfg there are only about 400 entries visible in my case doing a guix system reconfigure. Although the grub-efi package is referred to with a file-append gexp to build the path to the unicode.pf2 in gnu/bootloader/grub.scm, it happens that the grub package is not available in all cases in /gnu/store. The grub-efi package is gotten via (bootloader-package bootloader) and the bootloader possibly from a /run/*-system/parameters file.

I also noticed that even all the Linux kernels and initrds – except for the recent pair –, which end up being referred to from the grub.cfg, are not visible in /gnu/store while building the grub.cfg.

What makes the list of visible entries in /gnu/store when building the grub.cfg? And why might the gexp-referred grub-efi package not always be visible? This feels like a bug to me.


Bye

Stefan