Well, eventually I got the new kernel working. Thanks to @brikler for his support.
To solve the problem I added these 34 libraries to the
BINARIES section of
They were in the old one but missing in the new.
Honestly, I do not know which of these was responsible for not being able to open my LUKS encrypted LVM. Anyhow, what is annoying is that important libraries are kicked out and thus systems are rendered unbootable.
BTW, this bug must have been introduced between October 24th - when I generated the last working initramfs for kerrnel 4.18 - and January 2019. Since the hooks did not change and all
initramfs generated for kernel 4.18 after October 2019 did not work, it must have been introduced with another package update. No clue which one it might be, thus I can’t file a bug report.