> Do you have a PS/2 keyboard? This should require any special (USB) > kernel modules.
No, I don’t have a PS2 keyboard. The following hint may be useful: The computer of my wife with nearly the same software and update state as my one boots without problems with initrd image using udev 240-2. Her computer uses - ext4 with LVM and software raid - conventional magnetic hard disc with ATA interface My computer uses - btrfs - via m2 connected SSD. Is it possible, that dev 240-2 have problems to boot with m2 connected SSDs?