[pkg-cryptsetup-devel] Bug#1068849: cryptsetup: Fails to unlock the filesystem with missing libgcc_s.so.1

[Guilhem Moulin]

On Fri, 12 Apr 2024 at 14:37:16 +0200, Guilhem Moulin wrote:
> What is that “GUI” view?  src:cryptsetup doesn't provide that, I wonder
> if it might be what needs libphtread.

FWIW, I later noticed you used a splash screen (plymouth) and thought it
might be because of that, but I still cannot reproduce the issue in a
bookworm VM upgraded to sid (using d-i's “encrypted LVM” layout + a
splash screen).

>> After a ctrl-alt-del, I got to the console and there it showed an error about
>> libgcc_s.so.1 not available and aborting.

What was that error message exactly?

> If you still have the broken initramfs image, please extract it with
> `unmkinitramfs /path/to/broken.initrd.img /path/to/destdir` and try to
> find which executable / shared library needs libphtread, for instance
> with
>
>    cd /path/to/destdir
>    for p in $(find -P {usr/,}lib/x86_64-linux-gnu  {usr/,}{,s}bin/ -type f); do objdump -p "$p" 2>/dev/null | grep -q pthread && echo "$p"; done

Erm no, that likely won't work since pthread functions have moved from
libpthread.so.1 to libc.so.6 with glibc 2.34.  Otherwise copy_exec()
would have pulled in libgcc_s.  New attempt:

    rm -rf /tmp/initramfs-destdir && \
    mkdir -m0700 /tmp/initramfs-destdir && \
    unmkinitramfs /path/to/broken.initrd.img /tmp/initramfs-destdir && \
    for p in $(find /tmp/initramfs-destdir/main -type f | sort); do \
      objdump -T "$p" 2>&1 | grep pthread_exit && echo "^^ $p"; \
    done

-- 
Guilhem.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: not available
URL: <http://alioth-lists.debian.net/pipermail/pkg-cryptsetup-devel/attachments/20240412/141b5909/attachment.sig>