Cant mount ext4 drive

[reza]

I have tried with another hdd that is btrfs and I have installed the kernel driver and btrfs progs and restarted router.

even with btrfs drive I get the same error for mount as:
mount: /mnt/data: wrong fs type, bad option, bad superblock on /dev/sdb, missing codepage or helper program, or other error.

and in logs I get this:

Fri Sep  8 10:27:04 2023 kern.info kernel: [  277.572525] F2FS-fs (sdb): Magic Mismatch, valid(0xf2f52010) - read(0xfc63daf)
Fri Sep  8 10:27:04 2023 kern.err kernel: [  277.580002] F2FS-fs (sdb): Can't find valid F2FS filesystem in 1th superblock
Fri Sep  8 10:27:04 2023 kern.info kernel: [  277.588072] F2FS-fs (sdb): Magic Mismatch, valid(0xf2f52010) - read(0x0)
Fri Sep  8 10:27:04 2023 kern.err kernel: [  277.595114] F2FS-fs (sdb): Can't find valid F2FS filesystem in 2th superblock

though that might only be for f2fs type that I read here is not important.

Error when mount: can't find valid F2FS filesystem in ** superblock

The mount command by default has all the filesystem drivers probe the partition until one recognizes it is is its type and mounts it. That error message is just a warning from the f2fs kmod that during the process a f2fs filesystem was not found. Which is expected behavior if the partition is formatted with a different filesystem. The other drivers silently ignore finding a different filesystem. If you aren't going to be using any f2fs partitions at all, you could remove kmod-fs-f2fs. Note …

what is going on?
why I cant mount a btrfs drive.