<div dir="ltr"><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Hello!<br></div><div dir="ltr"><div><br></div><div>I hope this is the right venue for this question.</div><div><br></div><div>Does the current grub (2.04-15) support booting from a btrfs filesystem with zstd-compression? </div><div><br></div><div>I recently installed debian testing to a root subvolume on zstd-compressed btrfs raid1, which failed to boot, citing inability to find drives belonging to the btrfs raid array. Disabling compression on /boot, /initrd.img and /vmlinuz, reinstalling the kernel package and rebuilding the initramfs fixed this.</div><div>There was however another error generating the initramfs-image, which I fixed, but which confuses me as to the cause of my boot problems.</div><div><br></div><div>I looked through the changelog of grub-efi-amd64 but did not find a mention of cherry picking zstd-support. Does this mean it does not currently support booting off a zstd compressed btrfs volume and would you in this case like me to file a bug report? Trying to fix this, if desirable, would be a nice learning experience for me.</div><div><br></div><div>Best regards,</div><div>Tor-björn Claesson</div></div>
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