Package: intel-microcode Version: 3.20251111.1~deb13u1 Severity: normal X-Debbugs-Cc: [email protected]
I'm Cc'ing the kernel team so that maybe they can correct me if I'm wrong 🙂
I'm getting into the innards of kernel-install, dracut, systemd-boot, UKIs, and
everything else that makes systems boot and it's been very confusing. I think
that's because a couple packages are installing stuff in the wrong place and
making it hard for me to override things with drop-ins. The kernel-install(8)
manual page, in the first major paragraph, says
> kernel-install will run the executable files ("plugins") located in the
> directory /usr/lib/kernel/install.d/ and the local administration directory
> /etc/kernel/install.d/.
> All files are collectively sorted and executed in lexical order, regardless
> of the directory in which they live.
> However, files with identical filenames replace each other. Files in
> /etc/kernel/install.d/ take precedence over files with the same name in
> /usr/lib/kernel/install.d/.
> This can be used to override a system-supplied executables with a local file
> if needed; a symbolic link in /etc/kernel/install.d/ with the same name as an
> executable in /usr/lib/kernel/install.d/, pointing to /dev/null, disables the
> executable entirely.
Note: the kernel-install manual page doesn't mention the existence of the
preinst.d/postinst.d/etc. directories anywhere at all. I assume this is
probably an omission on their part, and the same assumptions hold for them as
for install.d?
Right now, intel-microcode appears to install
/etc/kernel/preinst.d/intel-microcode, but I think this should be
/usr/lib/kernel/preinst.d/intel-microcode, because the reasons above say
/etc/kernel/ should be for administrator overrides. It should be double-checked
that kernel-install does, in fact, use /usr/lib/kernel/preinst.d/. A couple
other packages have this issue too, so after research is done, it would be nice
to ask the Lintian folks to add a warning and/or amend the manual page of
systemd upstream.
-- System Information:
Debian Release: 13.3
 APT prefers stable-updates
 APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500,
'proposed-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 6.12.57+deb13-amd64 (SMP w/2 CPU threads; PREEMPT)
Kernel taint flags: TAINT_USER
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.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 intel-microcode depends on:
ii iucode-tool 2.3.1-3
Versions of packages intel-microcode recommends:
pn initramfs-tools <none>
intel-microcode suggests no packages.
-- no debconf information
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