package flash-kernel 3.106ubuntu14 failed to install/upgrade: installed flash-kernel package post-installation script subprocess returned error exit status 1

[Sevan Janiyan]

Using DTB: allwinner/sun20i-d1-lichee-rv-dock.dtb
Installing /lib/firmware/6.2.0-39-generic/device-tree/allwinner/sun20i-d1-lichee-rv-dock.dtb into /boot/dtbs/6.2.0-39-generic/allwinner/sun20i-d1-lichee-rv-dock.dtb
Taking backup of sun20i-d1-lichee-rv-dock.dtb.
Installing new sun20i-d1-lichee-rv-dock.dtb.
Ignoring old or unknown version 6.2.0-39-generic (latest is )
Processing triggers for flash-kernel (3.106ubuntu14) ...
Using DTB: allwinner/sun20i-d1-lichee-rv-dock.dtb
Couldn't find DTB sun20i-d1-lichee-rv-dock.dtb on the following paths: /etc/flash-kernel/dtbs /usr/lib/linux-image- /lib/firmware//device-tree/
Installing into /boot/dtbs//allwinner/sun20i-d1-lichee-rv-dock.dtb
cp: cannot stat '': No such file or directory
dpkg: error processing package flash-kernel (--configure):
 installed flash-kernel package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
 flash-kernel

ProblemType: Package
DistroRelease: Ubuntu 23.04
Package: flash-kernel 3.106ubuntu14
ProcVersionSignature: Ubuntu 6.2.0-39.40.1-generic 6.2.16
Uname: Linux 6.2.0-39-generic riscv64
ApportVersion: 2.26.1-0ubuntu2.1
Architecture: riscv64
CasperMD5CheckResult: unknown
CloudArchitecture: riscv64
CloudBuildName: server
CloudID: nocloud
CloudName: unknown
CloudPlatform: nocloud
CloudSerial: 20221018.3
CloudSubPlatform: seed-dir (/var/lib/cloud/seed/nocloud-net)
Date: Tue Dec 12 00:23:47 2023
ErrorMessage: installed flash-kernel package post-installation script subprocess returned error exit status 1
Python3Details: /usr/bin/python3.11, Python 3.11.4, python3-minimal, 3.11.2-1
PythonDetails: N/A
RebootRequiredPkgs: Error: path contained symlinks.
RelatedPackageVersions:
 dpkg 1.21.21ubuntu1
 apt 2.6.0ubuntu0.1
SourcePackage: flash-kernel
Title: package flash-kernel 3.106ubuntu14 failed to install/upgrade: installed flash-kernel package post-installation script subprocess returned error exit status 1
UpgradeStatus: Upgraded to lunar on 2023-12-12 (0 days ago)

[Heinrich Schuchardt (xypron)]

On Ubuntu noble the same occurs if 'linux-version list' cannot find any kernel. E.g. if a boot partition with the kernel exists but is not mounted at /boot/

Processing triggers for flash-kernel (3.107ubuntu4) ...
Using DTB: starfive/jh7110-starfive-visionfive-2-v1.3b.dtb
Couldn't find DTB jh7110-starfive-visionfive-2-v1.3b.dtb on the following paths: /etc/flash-kernel/dtbs /usr/lib/linux-image- /lib/firmware//device-tree/
Installing into /boot/dtbs//starfive/jh7110-starfive-visionfive-2-v1.3b.dtb
cp: cannot stat '': No such file or directory
dpkg: error processing package flash-kernel (--configure):
 installed flash-kernel package post-installation script subprocess returned error exit status 1
Processing triggers for libc-bin (2.38-3ubuntu1) ...

Sevan,

could you, please, provide the output of the following commands:

linux-version list
ls -la /boot
flash-kernel $(uname -r)

Best regards

Heinrich

[Sevan Janiyan (venture37)]

[LicheeRV] ~> linux-version list
6.2.0-35-generic
6.2.0-39-generic
6.5.0-14-generic

[LicheeRV] ~> ls -la /boot/
total 237992
drwxr-xr-x 5 root root 4096 Dec 12 02:28 .
drwxr-xr-x 20 root root 4096 Dec 12 01:42 ..
-rw------- 1 root root 4580745 Oct 6 13:03 System.map-6.2.0-35-generic
-rw------- 1 root root 4582658 Nov 27 09:50 System.map-6.2.0-39-generic
-rw------- 1 root root 4471146 Nov 23 11:32 System.map-6.5.0-14-generic
-rw-r--r-- 1 root root 2918 Oct 18 2022 boot.scr.bak
-rw-r--r-- 1 root root 251919 Oct 6 13:03 config-6.2.0-35-generic
-rw-r--r-- 1 root root 251912 Nov 27 09:50 config-6.2.0-39-generic
-rw-r--r-- 1 root root 261393 Nov 23 11:32 config-6.5.0-14-generic
lrwxrwxrwx 1 root root 60 Dec 12 01:17 dtb -> dtbs/6.2.0-39-generic/allwinner/sun20i-d1-lichee-rv-dock.dtb
lrwxrwxrwx 1 root root 44 Nov 15 12:56 dtb- -> dtbs//allwinner/sun20i-d1-lichee-rv-dock.dtb
lrwxrwxrwx 1 root root 60 Nov 27 22:40 dtb-6.2.0-35-generic -> dtbs/6.2.0-35-generic/allwinner/sun20i-d1-lichee-rv-dock.dtb
lrwxrwxrwx 1 root root 60 Dec 12 01:17 dtb-6.2.0-39-generic -> dtbs/6.2.0-39-generic/allwinner/sun20i-d1-lichee-rv-dock.dtb
drwxr-xr-x 21 root root 4096 Dec 7 07:50 dtbs
drwxr-xr-x 2 root root 0 Dec 12 01:39 efi
drwxr-xr-x 5 root root 4096 Dec 8 06:22 grub
lrwxrwxrwx 1 root root 27 Dec 7 07:40 initrd.img -> initrd.img-6.2.0-39-generic
-rw-r--r-- 1 root root 64734107 Nov 27 22:40 initrd.img-6.2.0-35-generic
-rw-r--r-- 1 root root 64871403 Dec 12 01:16 initrd.img-6.2.0-39-generic
lrwxrwxrwx 1 root root 27 Dec 8 06:21 initrd.img.old -> initrd.img-6.2.0-35-generic
lrwxrwxrwx 1 root root 24 Dec 7 07:40 vmlinuz -> vmlinuz-6.2.0-39-generic
-rw------- 1 root root 31789568 Oct 6 13:03 vmlinuz-6.2.0-35-generic
-rw------- 1 root root 31790080 Nov 27 09:50 vmlinuz-6.2.0-39-generic
-rw------- 1 root root 36058112 Nov 23 11:32 vmlinuz-6.5.0-14-generic
lrwxrwxrwx 1 root root 24 Dec 8 06:21 vmlinuz.old -> vmlinuz-6.2.0-35-generic

User shell is tcsh so 'flash-kernel $(uname -r)' doesn't work there:

[LicheeRV] ~> flash-kernel $(uname -r)
Illegal variable name.

Didn't run it as root intentionally to see what it complained about:

[LicheeRV] ~> flash-kernel `uname -r`
Failed to check for chroot() environment: Permission denied
Using DTB: allwinner/sun20i-d1-lichee-rv-dock.dtb
Installing /lib/firmware/6.2.0-39-generic/device-tree/allwinner/sun20i-d1-lichee-rv-dock.dtb into /boot/dtbs/6.2.0-39-generic/allwinner/sun20i-d1-lichee-rv-dock.dtb
cp: cannot create regular file '/boot/dtbs/6.2.0-39-generic/allwinner/sun20i-d1-lichee-rv-dock.dtb.new': Permission denied