OK, if Debian 13 works, then this is likely Kicksecure-specific.
Could you try this for me please:
- Boot from a Kicksecure 18 live USB.
- When the GRUB menu appears, hover over the “sysmaint” boot entry, then press the
ekey. - Move your cursor down to the line that starts with
linux /vmlinuz..., then press theEndkey to move to the end of the line. - Press and hold Backspace until everything in this line has been deleted except for the
roparameter and everything before it. You want the line to look likelinux /vmlinuz-... root=UUID=... roat the end. - Press Ctrl+X.
Does this boot? If so, there’s a kernel parameter in our hardening configuration that is probably causing the freeze.