[Bug 2143334] Re: [SRU] Block do-release-upgrade from Tegra Orin

[Pierre Ducroquet]

Here is the ubuntu-release-upgrader patch required on noble to prevent upgrade of NVIDIA Tegra Orin systems.
The check is built using the firmware exposed board name.

** Patch added: "ubuntu-release-upgrader-noble.patch"
   https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/2143334/+attachment/5951206/+files/ubuntu-release-upgrader-noble.patch

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https://bugs.launchpad.net/bugs/2143334

Title:
  [SRU] Block do-release-upgrade from Tegra Orin

Status in update-manager package in Ubuntu:
  New

Bug description:
  [ Impact ]

   * The currently released jammy image can not be upgraded to noble
     until nvidia provides support. Doing so will end up with a broken
     system and thus should be prevented.

   * In order to prevent this, block the upgrade from jammy on the
     impacted systems in ubuntu update-manager

  [ Test Plan ]

   * install jammy on a Jetson Orin system

   * launch do-release-upgrade: it should not list noble as a proposed
  upgrade

  [ Where problems could occur ]

   * The blocking could affect other systems if the blocking is poorly
  implemented.

   * The blocking need to be disabled in a future update once upgrading is allowed,
     it thus must not prevent update-manager from being upgraded.

  [ Other Info ]

   * The do-release-upgrade system downloads the latest upgrader from Noble, so
  implementing a blocking on Jammy requires doing the change in Noble.

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