[Bug 2122633] Re: os-prober is broken (mktemp: Permission denied) on Questing due to apparmor misconfiguration

Ubuntu QA Website 2122633 at bugs.launchpad.net
Sat Sep 13 16:06:30 UTC 2025


This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/2122633

** Tags added: iso-testing

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

Title:
  os-prober is broken (mktemp: Permission denied) on Questing due to
  apparmor misconfiguration

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

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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