[pkg-cryptsetup-devel] Bug#939766: cryptsetup-initramfs: Trying to boot linux-image-5.2.0-2-amd64 fails, linux-image-4.19.0-5-amd64 works.

[Alexander Brock]

I searched for clues why that libgcc_s.so.1 is not added and found the
script:
/usr/share/initramfs-tools/hooks/cryptroot

it contains the line:

LIBC_DIR="$(ldd /sbin/cryptsetup | sed -nr 's#.* =>
(/lib.*)/libc\.so\.[0-9.-]+ \(0x[[:xdigit:]]+\)$#\1#p')"

but on my machine there is no /bin/libc.so.[0-9.-]+ instead it is in
/usr/lib/x86_64-linux-gnu. Therefore $LIBC_DIR is empty which leads to
the "find: ‘’: No such file or directory" error message in the log
(https://paste.debian.net/1099530/)

Allowing any number of characters before the /lib fixes the problem:

LIBC_DIR="$(ldd /sbin/cryptsetup | sed -nr 's#.* =>
(.*/lib.*)/libc\.so\.[0-9.-]+ \(0x[[:xdigit:]]+\)$#\1#p')"

I changed this and now the 5.2 kernel boots again. I made a merge
request:
https://salsa.debian.org/cryptsetup-team/cryptsetup/merge_requests/10