Public bug reported:
My kid has Raspberry Pi 5 with Ubuntu. This weekend, I've updated from
25.04 to 25.10 and 26.04. Somewhere in the way, something went wrong,
and I'm stuck with GNU/Linux 6.17.0-1018-raspi kernel, not the latest
7.0 that should be in 26.04.
piboot-try:
New boot assets in /boot/firmware/new failed. Fallen back to known good
state. Use piboot-try --reset-new to re-test boot assets. If you are able
to determine the boot failure is due to a bug, please file an issue:
ubuntu-bug flash-kernel
Also know, that it is running old HDD (not SSD) from laptop, and often
boots on the second try, with I/O errors. Don't know why, maybe just old
HDD, maybe bad chinese SATA/USB adapter, but once it boots, it runs
stable. But this makes the "dual reboot" kernel update complicated.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: flash-kernel (not installed)
ProcVersionSignature: Ubuntu 6.17.0-1018.18-raspi 6.17.13
Uname: Linux 6.17.0-1018-raspi aarch64
ApportVersion: 2.34.0-0ubuntu2
Architecture: arm64
CasperMD5CheckResult: unknown
CloudArchitecture: aarch64
CloudID: nocloud
CloudName: unknown
CloudPlatform: nocloud
CloudSubPlatform: config-disk (/dev/sda1)
Date: Sun Jun 14 15:14:16 2026
ImageMediaBuild: 20250415.1
ProcEnviron:
LANG=cs_CZ.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
SourcePackage: flash-kernel
UpgradeStatus: Upgraded to resolute on 2026-06-14 (0 days ago)
** Affects: flash-kernel (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug arm64 arm64-image raspi-image resolute
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https://bugs.launchpad.net/bugs/2156705
Title:
Can't upgrade kernel on Raspberry Pi
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