Hi,

I made 4 Test entries and the first entry already worked without an
issue:

$ grep 1..Test /mnt/m1.xubu20.04/boot/grub/grub.cfg -A4
menuentry "Ubuntu X Moon Studio lowlatency, ro 1. Test 
root=/dev/disk/by-label/" {
        search --no-floppy --set=root --label s3.archlinux
        linux   /.boot/ubuntu_moonstudio/boot/vmlinuz-lowlatency 
root=/dev/disk/by-label/moonstudio230406 ro
        initrd  /.boot/ubuntu_moonstudio/boot/initrd.img-lowlatency
}

I'm surprised since on Arch Linux I can only boot the kernels v6+.
Startup hangs when I try to boot the v4.19+ or 5+ kernels with the new
hardware.

$ pacman -Q linux{,-rt{-lts,,-cornflower,-pussytoes,-securityink}}|awk '{print 
$1"\t"$2}' 
linux   6.2.10.arch1-1
linux-rt-lts    5.15.96.61.realtime1-2
linux-rt        6.2.0.3.realtime1-3
linux-rt-cornflower     1:4.19.271_rt120-0.300
linux-rt-pussytoes      1:4.19.269_rt119-0.300
linux-rt-securityink    1:4.19.265_rt117-0.300

The Ubuntu kernel I booted is way older

$ /bin/ls -l /.boot/ubuntu_moonstudio/boot/vmlinuz-lowlatency 
lrwxrwxrwx 1 root root 28 Apr 21  2021 
/.boot/ubuntu_moonstudio/boot/vmlinuz-lowlatency -> vmlinuz-4.4.0-210-lowlatency

However, this doesn't matter now.

Regards,
Ralf

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