[Bug 2131521] Re: Invalid symbolic link vmlinux -> stubble.efi-6.17.0-5-generic

I think this is /etc/kernel/postinst.d/xx-update-initrd-links from
linux-base.

** Package changed: linux (Ubuntu) => linux-base (Ubuntu)

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Title:
Invalid symbolic link vmlinux -> stubble.efi-6.17.0-5-generic

Status in linux-base package in Ubuntu:
New

Bug description:
I used the daily resolute-live-server-arm64.iso to install Ubuntu
26.04 on a Rock Pi 4A.

In directory /boot invalid links for vmlinux and vmlinux.old are
created:

$ ls /boot -la
total 125876
drwxr-xr-x 5 root root 4096 Nov 14 12:24 .
drwxr-xr-x 20 root root 4096 Nov 14 11:14 ..
-rw------- 1 root root 8069616 Sep 22 07:33 System.map-6.17.0-5-generic
-rw-r--r-- 1 root root 361327 Sep 22 07:33 config-6.17.0-5-generic
lrwxrwxrwx 1 root root 52 Nov 14 12:24 dtb -> dtbs/6.17.0-5-generic/rockchip/rk3399-rock-pi-4a.dtb
lrwxrwxrwx 1 root root 52 Nov 14 12:24 dtb-6.17.0-5-generic -> dtbs/6.17.0-5-generic/rockchip/rk3399-rock-pi-4a.dtb
drwxr-xr-x 3 root root 4096 Nov 14 11:16 dtbs
drwxr-xr-x 3 root root 4096 Jan 1 1970 efi
drwxr-xr-x 5 root root 4096 Nov 14 12:43 grub
lrwxrwxrwx 1 root root 27 Nov 13 07:49 initrd.img -> initrd.img-6.17.0-5-generic
-rw-r--r-- 1 root root 99451324 Nov 14 12:23 initrd.img-6.17.0-5-generic
lrwxrwxrwx 1 root root 27 Nov 13 07:49 initrd.img.old -> initrd.img-6.17.0-5-generic
lrwxrwxrwx 1 root root 28 Nov 13 07:49 vmlinuz -> stubble.efi-6.17.0-5-generic
-rw------- 1 root root 20988296 Sep 22 07:57 vmlinuz-6.17.0-5-generic
lrwxrwxrwx 1 root root 28 Nov 13 07:49 vmlinuz.old -> stubble.efi-6.17.0-5-generic

vmlinux and vmlinux.old should point to existing files.

The preferred solution would be to add all arm64 device-trees to the
stubble based kernel and install that kernel.

ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-6.17.0-5-generic 6.17.0-5.5
ProcVersionSignature: Ubuntu 6.17.0-5.5-generic 6.17.0-rc7
Uname: Linux 6.17.0-5-generic aarch64
ApportVersion: 2.33.1-0ubuntu3
Architecture: arm64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: zfsdt 1796 F.... wireplumber
/dev/snd/controlC0: zfsdt 1796 F.... wireplumber
/dev/snd/seq: zfsdt 1784 F.... pipewire
CasperMD5CheckResult: pass
Date: Fri Nov 14 12:44:08 2025
InstallationDate: Installed on 2025-11-14 (0 days ago)
InstallationMedia: Ubuntu-Server 26.04 LTS "Resolute Raccoon" - Daily arm64 (20251113)
Lspci:

Lspci-vt:

MachineType: radxa Radxa ROCK Pi 4A
ProcFB: 0 rockchipdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.17.0-5-generic root=UUID=aca29ba2-3ed9-4e42-82cd-0da348e13427 ro console=tty0 crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
firmware-sof N/A
linux-firmware 20251029.git4f72031f-0ubuntu1
RfKill:

SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
acpidump:

dmi.bios.date: 10/01/2025
dmi.bios.release: 25.10
dmi.bios.vendor: U-Boot
dmi.bios.version: 2025.10
dmi.board.name: Radxa ROCK Pi 4A
dmi.board.vendor: radxa
dmi.chassis.type: 2
dmi.modalias: dmi:bvnU-Boot:bvr2025.10:bd10/01/2025:br25.10:svnradxa:pnRadxaROCKPi4A:pvr:rvnradxa:rnRadxaROCKPi4A:rvr:cvn:ct2:cvr:sku:
dmi.product.name: Radxa ROCK Pi 4A
dmi.sys.vendor: radxa

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