bugGNU GRUB - Bugs: bug #59976, f2fs module appears not to handle...


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bug #59976: f2fs module appears not to handle extra_attr

Submitted by:  Paul Gover <goverp>
Submitted on:  Sat 30 Jan 2021 01:00:21 PM UTC  
Votes:  100  
Category:  Filesystem Severity:  Major
Priority:  5 - Normal Item Group:  Software Error
Status:  None Privacy:  Public
Assigned to:  None Originator Name:  Paul Gover
Open/Closed:  Open Release: 
Release:  2.00 Reproducibility:  Every Time
Planned Release:  None

Sat 30 Jan 2021 01:22:05 PM UTC, comment #1: 

I should have given some other software levels:

I'm not sure how to query the file-system software level, but the version of fsck.f2fs is 1.14.0.

FWIW I'm running Gentoo linux with kernel 5.10.11, but that shouldn't be involved, of course.

Paul Gover <goverp>
Sat 30 Jan 2021 01:00:21 PM UTC, original submission:  

I've grub 2.04 (which isn't in the bugzilla list) installed on two linux EFI/GPT machines, both with rootfs=f2fs.

On one, grub-install worked fine, and grub works fine; the grub command line shows it's prefix is (hd6,gpt1)/boot/grub, which is in the f2fs partition.  It's loading stuff (grub.cfg and so forth) no problem.

The other, grub-install appeared to work OK, but grub goes to the recovery prompt.  If I ls (hd0,gpt5), the f2fs partition containing /boot/grub, it says "f2fs filesystem", but if I ls (hd0,gpt5)/ I get a string of gibberish output, not directories.

It used to work until I reformatted the partition to support extra options - particularly its new checksums.  That required a format option "extra_attr", which I suspect means they've changed the size or layout of one of their control blocks, and it looks to me like that's broken grub's f2fs module.

Paul Gover <goverp>


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