[Bug 2143334] [NEW] [SRU] Block jammy do-release-upgrade

[Pierre Ducroquet]

Public bug reported:

[ 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 ]

 *

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New

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

Title:
  [SRU] Block jammy do-release-upgrade

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 ]

   *

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