[Bug 1999628] Re: negative offsets are not supported

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: libubootenv (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1999628

Title:
  negative offsets are not supported

Status in libubootenv package in Ubuntu:
  Confirmed

Bug description:
  On Toradex modules, the uboot-env is put last in the MMC boot sector.
  That way offset has to be counted from the end of the sector.
  This is achieved by using a negative offset.

  Switching u-boot-tools to libubootenv-tool breaks this configuration, because libubootenv does not (yet) support negative offsets.
  There is a patch that provides negative offsets, but it's from April 2020 and therefore seems not included in latest libubootenv0.1 (0.2-1) (which dates to January 2020, as far as I understand the changelog).

  Please update, so we get back functionality we depend on.

  In case there is doubt about versioning, 
  We are on a recent Ubuntu 20.04LTS, with 
  - u-boot-tools (2021.01+dfsg-3ubuntu0~20.04-4)
  - libubootenv-tool (0.2-1)
  - libubootenv0.1 (0.2-1)

  Thanks.

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