Steps to reproduce: 1. Add a setuid program to your config: (setuid-programs (cons* (file-append hello "/bin/hello") %setuid-programs)) 2. guix system reconfigure3. Observe that /run/setuid-programs/hello got created4. Undo the configuration change5. guix system reconfigure6. Observe that /run/setuid-programs/hello no longer exists7. guix system roll-back Expected behavior:/run/setuid-programs/hello appears again Actual behavior:/run/setuid-programs/hello still doesn't exist Similarly, when roll-back is supposed to remove a file, it doesn't. Previously mentioned in https://debbugs.gnu.org/38800. Regards,Jakub Kądziołka