Arch Linux

kStor2poche

Member

Registered: 2023-03-06

Posts: 7

GRUB "unknown filesystem" on f2fs drive despite no extra_attr

Hi, as stated in the post title, despite having a working f2fs filesystem made with no extra_attr options, grub refuses to recognize the filesystem. Note that I'm using an already existing esp partition, with grub traces from an older installation removed.

I am using a freshly downloaded "archlinux-2024.08.01-x86_64.iso" as my installer key and grub version as indicated by

grub-install --version

when chrooted is 2:2.12-2

fsck.f2fs output (copied as best as I can):

Info: [/dev/sda2] Disk Model: CT480BX300SSD1
Info: MKFS version
  "Linux version 6.10.2-arch1-1 (linux@archlinux) (gcc (GCC) 14.1.1 20240720, GNU ld (GNU Binutils) 2.42.0) #1 SMP PREEMPT_DYNAMIC Sat, 27 Jul 2024 16:49:55 +0000"
Info: FSCK version
  from "Linux version 6.10.2-arch1-1 (linux@archlinux) (gcc (GCC) 14.1.1 20240720, GNU ld (GNU Binutils) 2.42.0) #1 SMP PREEMPT_DYNAMIC Sat, 27 Jul 2024 16:49:55 +0000"
    to "Linux version 6.10.2-arch1-1 (linux@archlinux) (gcc (GCC) 14.1.1 20240720, GNU ld (GNU Binutils) 2.42.0) #1 SMP PREEMPT_DYNAMIC Sat, 27 Jul 2024 16:49:55 +0000"
Info: superblock features = a00 :  lost_found sb_checksum
Info: superblock encrypt level  = 0, salt = 00000000000000000000000000000000
Info: Segments per section = 1
Info: Sectors per zone = 1
Info: total FS sectors = 920922112 (449669 MB)
Info: CKPT version = 1ea8b83a
Info: Checked valid nat_bits in checkpoint
Info: checkpoint state = 5c5 :  large_nat_bitmap trimmed nat_bits crc compacted_summary unmount
[FSCK] Check Node 1 / 68655 (0.00%)
[FSCK] Check Node 6866 / 68655 (10.00%)
[FSCK] Check Node 13731 / 68655 (20.00%)
[FSCK] Check Node 20596 / 68655 (30.00%)
[FSCK] Check Node 27461 / 68655 (40.00%)
[FSCK] Check Node 34326 / 68655 (50.00%)
[FSCK] Check Node 41191 / 68655 (60.00%)
[FSCK] Check Node 48056 / 68655 (70.00%)
[FSCK] Check Node 54921 / 68655 (80.00%)
[FSCK] Check Node 61786 / 68655 (90.00%)
[FSCK] Check Node 68651 / 68655 (100.00%)

[FSCK] Max image size: 4364 MB, Free space: 445304 MB
[FSCK] Unreachable nat entries                        [Ok..] [0x0]
[FSCK] SIT valid block bitmap checking                [Ok..]
[FSCK] Hard link checking for regular file            [Ok..] [0x47b]
[FSCK] valid_block_count matching with CP             [Ok..] [0xbe9f5]
[FSCK] valid_node_count matching with CP (de lookup)  [Ok..] [0x10c2f]
[FSCK] valid_node_count matching with CP (nat lookup) [Ok..] [0x10c2f]
[FSCK] valid_inode_count matched with CP              [Ok..] [0x10aaf]
[FSCK] free segment_count matched with CP             [Ok..] [0x365b9]
[FSCK] next block offset is free                      [Ok..]
[FSCK] fixing SIT types
[FSCK] other corrupted bugs                           [Ok..]

Done: 4.518387 secs

filesystem is mounted with

mount -o atgc,gc_merge,lazytime /dev/sda2 /mnt

and seems to functions properly as pacstrap has had no problem + I can arch-chroot into it.

I also tried mounting without any options and with the wiki's recommended options and it still had the same issue.

I would be willing to try other bootloaders with multiboot and f2fs support, although it seems that f2fs support is brought via efifs which is itself based on grub's implementations of such fs so I'm at a loss here and calling for help.

Thanks in advance for any answers !

Last edited by kStor2poche (2024-08-27 16:00:20)

euromatlox

Member

Registered: 2017-02-10

Posts: 120

Re: GRUB "unknown filesystem" on f2fs drive despite no extra_attr

I had an issue while ago that vfat was not recognized. The underlying problem was that linux update somehow installed into wrong place, root partition's boot-directory, instead of boot partition. Details here.