Re: Guix bios installation: Grub error: unknown filesystem

[Franz Geffke]

Hi Ada,

I very much appreciate your detailed response.

For a moment I thought my email hadn't made it to this list, both because it 
didn't show up, and the lack of acknowledgment. After a day or so, I filed a bug 
report instead [1] - which produced the expected acknowledgement... Still learning.

[1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=866603

> Basically, there is a compatibility issue regarding the ext4 filesystem 
features that GRUB 2.06 supports and the features that `e2fsprogs@1.47.0` 
enables by default when creating your ext4 filesystem.

So this broke on 26th of March, with commit 
ce78f9cb668971954add5473c8549ebb00424f66.

> To fix this, you will need to make sure you create your ext4 filesystem with 
the following features: `mkfs.ext4 /dev/you-partition-here -O 
has_journal,ext_attr,resize_inode,dir_index,filetype,needs_recovery,extent,flex_bg,sparse_super,large_file,huge_file,uninit_bg,dir_nlink,extra_isize`

I didn't realize mkfs.ext4 would accept these directly, thank you.

Certainly hope the latest version of GRUB will be merged asap, so it doesn't 
affect more users. Not a great experience when the initial install requires an 
undocumented workaround - but then again, it does (still) work on the guix ISO 
from the homepage.

Have a great day!

Best,
Franz