Bug#1108089: grub-efi-amd64, linux-image-amd64: system fails to boot because grub config not updated after latest kernel upgrade

[Sean Whitton]

Package: grub-efi-amd64,linux-image-amd64
Severity: important

Dear maintainers,

I had kernel 6.12.27 running.  I just upgraded to kernel 6.12.32.  My system
then did not boot by itself because the grub config still contained entries
for 6.12.31, which had been autoremoved.  I could recover by booting the old
6.12.27 and then doing a manual 'update-grub'.

I see this in my /var/log/apt/term.log:

Log started: 2025-06-20  13:29:34
(Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
(Reading database ... 25%
(Reading database ... 30%
(Reading database ... 35%
(Reading database ... 40%
(Reading database ... 45%
(Reading database ... 50%
(Reading database ... 55%
(Reading database ... 60%
(Reading database ... 65%
(Reading database ... 70%
(Reading database ... 75%
(Reading database ... 80%
(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 618410 files and directories currently installed.)
Preparing to unpack .../initramfs-tools_0.148.2_all.deb ...
Unpacking initramfs-tools (0.148.2) over (0.147) ...
Preparing to unpack .../initramfs-tools-core_0.148.2_all.deb ...
Unpacking initramfs-tools-core (0.148.2) over (0.147) ...
Selecting previously unselected package initramfs-tools-bin.
Preparing to unpack .../initramfs-tools-bin_0.148.2_amd64.deb ...
Unpacking initramfs-tools-bin (0.148.2) ...
Selecting previously unselected package linux-image-6.12.32-amd64.
Preparing to unpack .../linux-image-6.12.32-amd64_6.12.32-1_amd64.deb ...
Unpacking linux-image-6.12.32-amd64 (6.12.32-1) ...
Preparing to unpack .../linux-image-amd64_6.12.32-1_amd64.deb ...
Unpacking linux-image-amd64 (6.12.32-1) over (6.12.31-1) ...
Setting up initramfs-tools-bin (0.148.2) ...
Setting up initramfs-tools-core (0.148.2) ...
Setting up initramfs-tools (0.148.2) ...
update-initramfs: deferring update (trigger activated)
Setting up linux-image-6.12.32-amd64 (6.12.32-1) ...
I: /vmlinuz.old is now a symlink to boot/vmlinuz-6.12.31-amd64
I: /initrd.img.old is now a symlink to boot/initrd.img-6.12.31-amd64
I: /vmlinuz is now a symlink to boot/vmlinuz-6.12.32-amd64
I: /initrd.img is now a symlink to boot/initrd.img-6.12.32-amd64
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-6.12.32-amd64
I: The initramfs will attempt to resume from /dev/dm-2
I: (/dev/mapper/vg_zephyr-lv_zephyr_swap)
I: Set the RESUME variable to override this.
Setting up linux-image-amd64 (6.12.32-1) ...
Processing triggers for man-db (2.13.1-1) ...
Processing triggers for initramfs-tools (0.148.2) ...
update-initramfs: /boot/initrd.img-6.12.32-amd64 has already been updated since Fri 20 Jun 2025 13:29:37 BST.
Log ended: 2025-06-20  13:29:52

-- 
Sean Whitton
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