On Fri, 19 Feb 2021 at 13:37, Arch Linux: Recent news updates: Giancarlo Razzolini via arch-announce <arch-announce@xxxxxxxxxxxxxxxxxxx> wrote: > > As linux-lts moved to the 5.10 version, all official kernels of Arch Linux now support zstd compressed > initramfs images, so mkinitcpio is switching to zstd compressed images by default with version 30, > which is currently on [testing]. > > If, for any reason, you are using a kernel version prior to 5.9, make sure to change mkinitcpio.conf > COMPRESSION to use one of the compressors supported, like gzip, otherwise you **will not** be able to > boot images generated by mkinitcpio. I am not sure I understand this. If someone has the default mkinitcpio.conf it won't boot? In my case I set it to lz4 over a year ago for speed.