This bug was fixed in the package linux-base - 4.5ubuntu7
---------------
linux-base (4.5ubuntu7) impish; urgency=medium
* Check for update-initramfs being installed before running the postinst
hook which updates the softlinks (LP: #1928700).
-- Stefan Bader <stefan.ba...@canonical.com> Mon, 17 May 2021 17:55:34
+0200
** Changed in: linux-base (Ubuntu Impish)
Status: Triaged => Fix Released
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https://bugs.launchpad.net/bugs/1928700
Title:
new postinst hook requires initramfs-tools
Status in linux-base package in Ubuntu:
Fix Released
Status in linux-base source package in Bionic:
Fix Committed
Status in linux-base source package in Focal:
Fix Committed
Status in linux-base source package in Hirsute:
Fix Committed
Status in linux-base source package in Impish:
Fix Released
Bug description:
[SRU Justification]
== Impact ==
The new postinst hook from bug 1877088 currently requires initramfs-tools
installed, or installing a kernel would fail. This happens for me on a builder
chroot trying to build linux-meta of a derivative kernel.
== Fix ==
The fix would be to skip running the script if update-initramfs is not
available. The check was taken from the /etc/kernel/postinst.d/initramfs-tools
script which has exactly that check at the beginning.
== Testcase ==
Building linux-meta in a sbuild chroot which should again work without the
messages about verifying links. Reinstalling a kernel on a system with
update-initramfs existing should still print the messages.
== Regression Potential ==
Systems with update-initramfs installed and initrd files might for some
reason again fail to fix missing links.
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