** Description changed:
+ [ Impact ]
+
Title: linux-firmware-amd-misc upgrade leaves unowned amdtee firmware
files and causes dpkg warning
I encountered the following warning during a normal package upgrade on
Linux Mint based on Ubuntu 24.04 Noble:
dpkg: warning: unable to delete old directory '/lib/firmware/amdtee':
Directory not empty
The upgrade itself completed successfully and I have not observed any
functional problems.
After the upgrade, I inspected /lib/firmware/amdtee and found both older
uncompressed .bin files and newer compressed .bin.zst files.
Current contents include:
773bd96f-b83f-4d52-b12dc529b13d8543.bin
773bd96f-b83f-4d52-b12dc529b13d8543.bin.zst
f29bb3d9-bd66-5441-afb88acc2b2b60d6.bin
f29bb3d9-bd66-5441-afb88acc2b2b60d6.bin.zst
amd_pmf_v3.bin
amd_pmf_v3.bin.zst
amd_pmf_v3_1.bin
amd_pmf_v3_1.bin.zst
Running:
dpkg -S /lib/firmware/amdtee/*
shows that the .bin.zst files and symlinks are owned by linux-firmware-
amd-misc, while the corresponding uncompressed .bin files and symlinks
appear to be unowned.
Relevant installed package versions:
linux-firmware:
20240318.git3b128b60.0ubuntu3.1
linux-firmware-amd-misc:
20240318.git3b128b60-0ubuntu3.1
linux-firmware-amd-graphics:
20240318.git3b128b60-0ubuntu3.2
All three packages are being installed directly from:
http://archive.ubuntu.com/ubuntu noble-updates/main
This appears to be residue from the transition or split of AMD firmware
files from linux-firmware into linux-firmware-amd-misc, where older
uncompressed files remain in /lib/firmware/amdtee and prevent dpkg from
removing the old directory cleanly.
I have intentionally left the directory unchanged in case maintainers
need additional information about the post-upgrade state.
I initially attempted to report this using:
ubuntu-bug linux-firmware
but Apport refused the report with:
"This does not seem to be an official Linux package."
The packages are, however, installed directly from the Ubuntu Noble
Updates repository; the host system is Linux Mint, which may be why
Apport rejected the report.
Expected behavior:
The package upgrade/migration should either safely remove obsolete
firmware files or otherwise complete without the "Directory not empty"
warning.
+
+ [ Test Case ]
+
+ Install linux-firmware-amd-misc and check that it doesn't provide any
amdtee/* firmwares:
+ $ dpkg -L linux-firmware-amd-misc | grep amdtee
+
+ [ Where Problems Could Occur ]
+
+ Dropping firmware that might have been loaded, potentially causing the
+ usual firmware related issues. In this particular case it's AMD platform
+ management firmware.
** Also affects: amd64-microcode (Ubuntu Noble)
Importance: Undecided
Status: New
** Also affects: linux-firmware-amd-misc (Ubuntu Noble)
Importance: Undecided
Status: New
** No longer affects: amd64-microcode (Ubuntu Noble)
** Changed in: linux-firmware-amd-misc (Ubuntu)
Status: New => Invalid
** Changed in: linux-firmware-amd-misc (Ubuntu Noble)
Status: New => In Progress
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https://bugs.launchpad.net/bugs/2166519
Title:
linux-firmware-amd-misc upgrade leaves unowned amdtee firmware files
and causes dpkg warning
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