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[Kai Kasurinen <2122474@xxxxxxxxxxxxxxxxxx>]

> sudo debootstrap questing ./questing-chroot
...
> ls -la questing-chroot/run
total 40
drwxr-xr-x 10 root root 4096 Sep 10 11:10 ./
drwxr-xr-x 17 root root 4096 Sep 10 11:10 ../
-rw-r--r--  1 root root    0 Sep 10 11:10 adduser
drwxrwxrwt  3 root root 4096 Sep 10 11:10 lock/
drwxr-xr-x  2 root root 4096 Sep 10 11:10 log/
drwxr-xr-x  2 root root 4096 Sep 10 11:10 sendsigs.omit.d/
drwxr-xr-x  2 root root 4096 Sep 10 11:10 setrans/
lrwxrwxrwx  1 root root    8 Sep 10 11:10 shm@ -> /dev/shm
drwxr-xr-x  2 root root 4096 Sep 10 11:10 sshd/
drwx--x--x  2 root root 4096 Sep 10 11:10 sudo/
drwxr-xr-x 10 root root 4096 Sep 10 11:10 systemd/
drwxr-xr-x  2 root root 4096 Sep 10 11:10 user/

> ls -la questing-chroot/run/lock
total 12
drwxrwxrwt  3 root root 4096 Sep 10 11:10 ./
drwxr-xr-x 10 root root 4096 Sep 10 11:10 ../
drwxr-xr-x  2 root root 4096 Sep 10 11:10 subsys/

-- 
You received this bug notification because you are a member of
Debcrafters packages, which is subscribed to base-files in Ubuntu.
https://bugs.launchpad.net/bugs/2122474

Title:
  Directory /run contains unexpected files and directories in the live
  image, causing potential issues

Status in Ubuntu:
  New
Status in base-files package in Ubuntu:
  New

Bug description:
  Description of the Bug's Symptoms

  When booting into the Ubuntu 25.04 live image, it has been observed
  that the /run directory is not empty. The directory is intended for
  temporary files and should be empty at boot time.

  This suggests an error in the live image creation process, where files
  are left behind in the directory.

  This can also lead to different symptoms depending on the system's
  configuration, such as systemd's run-lock.mount warning: Directory
  /run/lock to mount over is not empty, mounting anyway. The occurrence
  of this warning is not consistent across all environments, but it is a
  direct consequence of the /run/lock subdirectory not being empty.

  How to Repeat the Problem

  Boot the computer using the Ubuntu live image.

  Open a terminal in the live environment.

  The live system's /run directory is already mounted in RAM. To access
  the original contents of the / root directory, you need to create a
  new mount point and use the mount --bind command. Run the following
  commands:

  sudo mkdir /mnt/root
  sudo mount --bind / /mnt/root
  sudo ls -la /mnt/root/run

  Expected Outcome: The ls -la /mnt/root/run command should show an
  empty directory (only . and .. files).

  Actual Outcome: The directory contains one or more files or
  subdirectories that were left behind in the live image.

  Environment Details

  Ubuntu version: 25.04, 25.10
  Environment: Live image 
  Tested Versions: 25.04 Desktop, 25.10 Desktop, 25.10 Server

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