[Replace SquashFS with EROFS]

unRAID currently ships `bzmodules` and `bzfirmware` as SquashFS, however another read-only filesystem exists called EROFS, which should only be slightly bigger in image size than SquashFS, however it should be much faster, potentially translating to faster boot times. Everyone should gain from this, so I think it might be worth looking into.

 

References:

https://www.kernel.org/doc/html/v5.8/filesystems/erofs.html

https://www.usenix.org/system/files/atc19-gao.pdf

https://blog.sigma-star.at/post/2022/07/squashfs-erofs/

 

Command example: `mkfs.erofs -zlzma -C 65536 -Eztailpacking *image* *folder*`

 

Changes needed (as far as I can tell):

- Enable EROFS support in the kernel (with lzma support, as per example above, if wanted)

- Edit fstab to use `erofs` instead `squashfs` with only `ro` as mount option

[Ability to switch between acpi_cpufreq and amd-pstate for recent Ryzen CPUs]

See: https://docs.kernel.org/admin-guide/pm/amd-pstate.html

 

This may or may not provide better performance, however it should help with power usage due to being able to clock much lower.

 

If I recall correctly, my 5600x on my Arch Linux install with acpi-cpufreq can clock around 2.2 GHz and its turbo of 4.85 Ghz, while with amd-pstate it's:

 

hardware limits: 550 MHz - 4.88 GHz