Bug 924541 – sys-apps/memtest86+-6.20-r1[boot,uefi64] does not produce /etc/grub.d/39_memtest86+ that adds memtest86+ to GRUB menus

• Product: Gentoo Linux
• Status: RESOLVED INVALID

[Description Michał Dec 2024-02-14 10:31:08 UTC]

When running `grub-mkconfig -o /boot/grub/grub.cfg`, I expect it to produce a GRUB config that includes the currently installed kernels and memtest as selectable items in the GRUB menu.

However, the file /etc/grub.d/39_memtest86+ is completely ill suited for such purpose. By studying the files produced by installing =sys-apps/memtest86+-6.20-r1[boot,uefi64], I can see that the main binary is installed in /boot/memtest86plus/memtest.efi64 as expected.

Therefore, the file /etc/grub.d/39_memtest86+ makes wrong assumptions at the start by looking for the realmode memtest binary (line 5) and knetbsd memtest binary (line 7).

Because of this, what ends up in /boot/grub/grub.cfg looks like this, when `grub-mkconfig` goes over this section:
```
### BEGIN /etc/grub.d/39_memtest86+ ###
### END /etc/grub.d/39_memtest86+ ###
```

So, installing with [boot,uefi64], should get us a GRUB directive that will correctly add memtest86's UEFI binary to the GRUB menu.

Reproducible: Always

Steps to Reproduce:
1. Have installed grub[grub_platforms_efi-64] and memtest86+[boot,uefi64]
2. Run `grub-mkconfig -o /boot/grub/grub.cfg`
3. Inspect file /boot/grub/grub.cfg after line "### BEGIN /etc/grub.d/39_memtest86+ ###"
Actual Results:  
Memtest is not added to the GRUB config

Expected Results:  
Memtest should be added to the GRUB config

[Comment 1 Michał Dec 2024-02-14 10:32:28 UTC]

Created attachment 884951 [details]
memtest's GRUB directives

This is the file described in the bug report. This file should exist, but its contents should be adjusted to the target we want to install memtest for.

[Comment 2 Michał Dec 2024-02-14 16:41:27 UTC]

Resolved. I needed to run dispatch-conf. Sorry.