Bug#1107194: [s390x] trixie's lsinitramfs fails on initramfs build on bookworm

Package: initramfs-tools-core
Version: 0.147
Severity: normal
File: /usr/bin/lsinitramfs
X-Debbugs-Cc: [email protected]
User: [email protected]
Usertags: s390x

Hi,

Two days ago, I upgraded the s390x ci.debian.net host from bookworm to
trixie. The system was already running the kernel from backports, so
the upgrade was mostly of the userland. That upgrade hasn't been a
nice experience, because the system failed to boot afterwards. I was
able to boot the previous kernel eventually, but while trying to
figure out if the initramfs was somehow missing pieces I tried to run
lsinitramfs on both the old (current) and new (failing) initramfs, but
that failed on the old one:
$ lsinitramfs /boot/initrd.img.old
cpio: premature end of archive

Running the same command on the new (but non booting initramfs) worked
as expected.

Paul

-- System Information:
Debian Release: 13.0
   APT prefers testing
   APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: s390x

Kernel: Linux 6.12.22+bpo-s390x (SMP w/10 CPU threads)
Kernel taint flags: TAINT_WARN
Locale: LANG=C, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages initramfs-tools-core depends on:
ii  coreutils       9.7-2
ii  cpio            2.15+dfsg-2
ii  dracut-install  106-6
ii  e2fsprogs       1.47.2-1+b1
ii  klibc-utils     2.0.14-1
ii  kmod            34.2-2
ii  logsave         1.47.2-1+b1
ii  udev            257.6-1

Versions of packages initramfs-tools-core recommends:
ii  busybox-static [busybox]  1:1.37.0-4
ii  zstd                      1.5.7+dfsg-1

Versions of packages initramfs-tools-core suggests:
ii  bash-completion  1:2.16.0-7

-- no debconf information

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