Hi Gioele,

On  Fr 02 Okt 2026 13:06:44 UTC, Gioele Barabucci wrote:

Control: tags 1148069 - patch

On Sat, 26 Sep 2026 13:02:27 +0000 Mike Gabriel <[email protected]> wrote:
People start asking about when sssd is fixed (because autofs is also impacted by sssd not being in testing).

For the background story and how this all is related:

  * autofs is not in testing, because sssd is not in testing
  * sssd is not in testing because of #1129522
  * to get sssd fixed (#1129522) it needs sudo bug #1147179 getting fixed
  * to get the approach suggested in #1147179 fully functional dh-nss needs
    love (#1148069)
  * this also impact the Debian Edu 14 development, but this is not so
    pressing at the moment, because we are still busy with fine-polishing
    the Debian Edu 13 release
Hi, long story short: I improved the testsuite with quite a few tests focused on upgrades and it turns out, as it always the case, that a simple fix like the one proposed here does not properly cover all the possible upgrade paths (for arbitrary changes to .nss files). Upgrades are hard.

I'll try now a different strategy: making the maintscript snippets go back to a clean state before each upgrade. On paper it works, but I'm afraid it may cause intermittent issues because there will be a window of time in which the service will not be enabled in /etc/nsswitch.conf. In case of a failed upgrade that window may be arbitrarily long and if that service is something needed to log in, the admin may end up locked out of their accounts.

Another option, more in line with what sssd and autofs need at the moment, would be to state something along the lines of ".nss files can only be added to or removed from a package; changing the content of .nss files between package versions is not allowed without additional ad-hoc code in maintscripts".

Both options are unsatisfactory. Option 2 is perhaps the best to unblock the current sssd situation.

I'll do some other testing and play with these two options during the weekend, then release a version that will at least unblock sssd.

Ideas and comments are welcome!

--
Gioele Barabucci

Thanks for the info update and for providing a fix to unblock sssd.

Mike

--

mike gabriel aka sunweaver (Debian Developer)
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