[Bug 1959375] Re: [SRU] Please support group manipulation with "extrausers"

[Alberto Mardegan]

Marking as Invalid for Impish, since the issue only happens with a read-
only rootfs like we use in Ubuntu Core, and UC is only based on LTS
releases.

** Changed in: shadow (Ubuntu Impish)
       Status: New => Won't Fix

** Changed in: shadow (Ubuntu Impish)
   Importance: Undecided => Low

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Title:
  [SRU] Please support group manipulation with "extrausers"

Status in shadow package in Ubuntu:
  New
Status in shadow source package in Bionic:
  New
Status in shadow source package in Focal:
  New
Status in shadow source package in Impish:
  Won't Fix
Status in shadow source package in Jammy:
  New

Bug description:
  Currently doing something like:

      sudo usermod -a -G snap_microk8s dbeamonte

  on a Ubuntu Core system will fail with

      usermod: /etc/group.15965: Read-only file system

  This is because the existing usermod patches to detect
  the extrausers file do not cover this case. Attached
  a simple patch that enables it. I will give this patch
  a test run in our image PPA for jammy and if things look
  good I would like upload to 22.04 and SRU for 20.04 and
  18.04.

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