Porteus 5.1 enable zstd for zram

Post#1 by **agroferia** » 04 Apr 2025, 21:36

Hi. First of all thank you for the amazing distribution.

I was trying out Porteus 5.1 alpha2 and I set the zram parameter at boot. However, the algorithm gets set to lzo-rle.

This seems to come from the kernel, since version 6.12. You need to set the flags:
CONFIG_ZRAM_BACKEND_ZSTD=y
CONFIG_ZRAM_BACKEND_LZ4=y

To be able to use those algorithms.

I found the information here:
https://bugs.gentoo.org/946547
https://github.com/void-linux/void-pack ... sues/53580

Thanks!

Post#2 by **Blaze** » 05 Apr 2025, 07:07

Hi agroferia.
Try this kernel Porteus Kernel Builder (Пост Blaze #102651)
Thanks for the report.

Post#3 by **agroferia** » 06 Apr 2025, 09:42

Oh wow, that was quick! Thanks, I'll try it out!

Post#4 by **agroferia** » 06 Apr 2025, 10:17

I just tried it out, it boots by default using zstd.

When I do:

Code: Select all

cat /sys/block/zram0/comp_algorithm

It returns:

Code: Select all

lz4 [zstd]

So both zstd and lz4 are available for choosing.

lzo, lzo-rle are not there anymore. I personally do not mind, as I would either use lz4 or zstd. But there may be users that prefer lz0.

Post#5 by **Blaze** » 06 Apr 2025, 13:43

agroferia wrote: ↑
06 Apr 2025, 10:17
But there may be users that prefer lz0

I think no coz Porteus are must be lightweight.
zstd and lz4 it's better choice.