This bug was fixed in the package ubuntu-release-upgrader - 1:27.04.1
---------------
ubuntu-release-upgrader (1:27.04.1) tenacious; urgency=medium
[ Dave Jones ]
* Update for Tenacious:
- data/DistUpgrade.cfg: update for resolute
- DistUpgrade: update release announcements for resolute
- DistUpgradeVersion: set initial version for resolute
* Prevent all armhf users from upgrading, even when configured as a foreign
architecture (LP: #2170966)
[ Simon Johnsson ]
* DistUpgradeQuirks: allow non-GRUB systems with unsupported /boot
configurations to upgrade (LP: #2170211)
* BootConfiguration: check the return code for `lsblk` when getting block
devices, as the device argument could be invalid. Also define pttypes by
what's supported, rather than unsupported.
ubuntu-release-upgrader (1:26.10.13) stonking; urgency=medium
* Prevent systems with /boot configurations that will be unsupported in
27.04 from upgrading (LP: #2170211)
- DistUpgradeQuirks: add quirk that aborts the upgrade when an unsupported
/boot configuration is detected
- BootConfiguration: add module for representing and processing a system's
/boot configuration
ubuntu-release-upgrader (1:26.10.12) stonking; urgency=medium
[ Amr Elsheshtawy ]
* deb2snap: Gate desktop-minimal snaps on ubuntu-desktop-minimal so
Raspberry Pi upgrades use their configured channels, preserving
snap-store's 2 track (LP: #2170580)
[ Simon Johnsson ]
* DistUpgradeQuirks: prevent systems with incorrectly configured /usr merge
directories from upgrading, as this would otherwise cause the base-files
upgrade to fail, leaving the system in a potentially broken state
(LP: #2131303)
[ Dave Jones ]
* DistUpgradeQuirks: prevent armhf systems from upgrading away from the
last LTS to fully support armhf (LP: #2170966)
-- Dave Jones <[email protected]> Wed, 21 Oct 2026 22:24:03
+0100
** Changed in: ubuntu-release-upgrader (Ubuntu)
Status: Triaged => Fix Released
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https://bugs.launchpad.net/bugs/2170211
Title:
[SRU] Systems using niche /boot configurations won't be able to
upgrade from 26.10
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