Bug report attachment set — dracut 112-7 hangs while generating an
initrd (during 26.04→26.10 release upgrade, and again at boot via
kdump-tools). All files from an amd64 Dell 16 Plus 2-in-1 (Lunar Lake).
Release-upgrade logs (do-release-upgrade, /var/log/dist-upgrade/):
- main.log : "Upgrading from resolute to stonking"; the
KeyboardInterrupt traceback at 21:49:03 during
cache.commit().
- screenlog.0 : screen session log showing the ~10.5 min hang
(21:38:35 → 21:49:03) right after
"update-initramfs: Generating
/boot/initrd.img-7.0.0-38-generic".
- apt-term.log : dpkg/trigger output, incl. "Processing triggers for
dracut (112-7)".
- apt.log : package resolution (upgrades, removals, obsolete list).
- history.log : apt history of the upgrade transaction.
Boot-hang evidence (kernel 7.3.0-9):
- journalctl-boot--2-hang-7.3.txt : boot 2026-10-19 20:24:57 — kdump-tools
starts "Generating
/var/lib/kdump/initrd.img-7.3.0-9-generic
(dracut)", then freezes; basic.target is
never reached.
- journalctl-boot--4-hang-7.3.txt : boot 2026-10-19 19:46:26 — same pattern.
Configuration in play:
- kdump-tools.service.txt : shows "Before=basic.target" (why the boot
blocks).
- dracut-kdump-10-kdump.conf.txt : hostonly="yes", hostonly_mode="strict".
- kernel-postinst-kdump-tools.txt: the hook invoking dracut for the kdump
initrd.
- kdump-tools-default.conf.txt : USE_KDUMP=1 and generator settings.
README.txt : index mapping each file to what it demonstrates, plus the
related Launchpad bugs (#2126934, #2115025).
** Attachment added: "dracut-hang-26.10-bugreport.zip"
https://bugs.launchpad.net/ubuntu/+source/dracut/+bug/2171438/+attachment/6010705/+files/dracut-hang-26.10-bugreport.zip
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https://bugs.launchpad.net/bugs/2171438
Title:
dracut initrd generation hangs during do-release-upgrade (26.04→26.10)
and at boot via kdump-tools
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