[Bug 2122633] [NEW] os-prober is broken on Questing due to apparmor misconfiguration

Eugene San 2122633 at bugs.launchpad.net
Fri Sep 12 05:21:23 UTC 2025


Public bug reported:

os=prober fails to function Questing.

It appears that apparmor blocks temp directory creation (mktemp from
rust-coreutils) in context of os-prober.

Just renaming os-prober script to anything else allows it to function.

** Affects: apparmor (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: os-prober (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: rust-coreutils (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: regression-release rust-coreutils

** Also affects: apparmor
   Importance: Undecided
       Status: New

** Also affects: rust-coreutils (Ubuntu)
   Importance: Undecided
       Status: New

** Also affects: apparmor (Ubuntu)
   Importance: Undecided
       Status: New

** No longer affects: apparmor

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https://bugs.launchpad.net/bugs/2122633

Title:
  os-prober is broken on Questing due to apparmor misconfiguration

Status in apparmor package in Ubuntu:
  New
Status in os-prober package in Ubuntu:
  New
Status in rust-coreutils package in Ubuntu:
  New

Bug description:
  os=prober fails to function Questing.

  It appears that apparmor blocks temp directory creation (mktemp from
  rust-coreutils) in context of os-prober.

  Just renaming os-prober script to anything else allows it to function.

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