Bug 649452

Summary:	sys-boot/grub - add zstd support for btrfs filesystems
Product:	Gentoo Linux	Reporter:	Forza <forza>
Component:	Current packages	Assignee:	Mike Gilbert <floppym>
Status:	RESOLVED WONTFIX
Severity:	normal	CC:	axs, base-system
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Forza 2018-03-03 13:23:12 UTC

Btrfs with kernels >=4.14 support zstd compression. However, Grub does not yet support zstd, which leads to failed boots if zstd is used on the boot/root filesystems.

Support is being added at https://github.com/kdave/grub

Perhaps a warning when installing grub and/or btrfs-tools about the incompatibility would be good?

Comment 1 Mike Gilbert gentoo-dev

2018-03-06 19:26:31 UTC

Feel free to update the wiki with a warning, but I'm not going to check for this in the ebuild.