[Bug 2099811] Re: Os-prober segmentation fault one message for each partition on same PC

[Ryan Lee]

For the record: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=476184
has a rationale for why os-prober introduced mount namespaces in the
first place. If we remove the unsharing of the mount namespace, can we
also make sure that os-prober won't fall over if its unmount calls fail?

** Bug watch added: Debian Bug tracker #476184
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=476184

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Title:
  Os-prober segmentation fault one message for each partition on same PC

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

Bug description:
  Reporting this bug on os-prober, my bug https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/2099662
  was incorrectly attributed to grub

  corrado at corrado-n3-pp-0223:~$ sudo os-prober
  [sudo] password for corrado: 
  find: Failed to restore initial working directory: /home/corrado: Permission denied
  Segmentation fault
  Segmentation fault
  Segmentation fault
  Segmentation fault
  Segmentation fault
  Segmentation fault
  Segmentation fault
  Segmentation fault
  Segmentation fault
  Segmentation fault
  Segmentation fault
  Segmentation fault
  Segmentation fault
  Segmentation fault
  Segmentation fault
  Segmentation fault
  Segmentation fault
  Segmentation fault
  Segmentation fault
  corrado at corrado-n3-pp-0223:~$ 

  Attaching related journal

  ProblemType: Bug
  DistroRelease: Ubuntu 25.04
  Package: os-prober 1.83ubuntu2
  ProcVersionSignature: Ubuntu 6.12.0-15.15-generic 6.12.11
  Uname: Linux 6.12.0-15-generic x86_64
  ApportVersion: 2.31.0+git20250220-0ubuntu2
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Feb 23 15:46:27 2025
  InstallationDate: Installed on 2025-02-23 (0 days ago)
  InstallationMedia: Ubuntu 25.04 "Plucky Puffin" - Daily amd64 (20250223)
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
   XDG_RUNTIME_DIR=<set>
  SourcePackage: os-prober
  UpgradeStatus: No upgrade log present (probably fresh install)

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