Getting the message "[ 0.283078] Initramfs unpacking failed: Decoding failed" when booting ubuntu 20.04 then boots normal
From the comments...
-
set back
compress=lz4in /etc/initramfs-tools/initramfs.conf -
rebuild your ramdisk with
sudo update-initramfs -c -k $(uname -r) -
reboot
Note: Use the sudo update-initramfs -c example, not sudo update-initramfs -u variation.