Bug#1065035: mkosi: Fails with `flock: failed to execute newuidmap: No such file or directory`

[Paul Menzel]

Package: mkosi
Version: 20.2-1
Severity: normal


Dear Debian folks,


I tried to use mkosi, but it fails with the error below.

     $ mkosi --output-dir=/scratch/local2/pmenzel/mkosi
     flock: failed to execute newuidmap: No such file or directory
     flock: failed to execute newgidmap: No such file or directory
     Traceback (most recent call last):
       File "/usr/lib/python3/dist-packages/mkosi/run.py", line 162, in 
uncaught_exception_handler
         yield
       File "/usr/lib/python3/dist-packages/mkosi/run.py", line 203, in 
fork_and_wait
         target()
       File "/usr/lib/python3/dist-packages/mkosi/__init__.py", line 
3555, in <lambda>
         fork_and_wait(lambda: run_clean(args, config))
                               ^^^^^^^^^^^^^^^^^^^^^^^
       File "/usr/lib/python3/dist-packages/mkosi/__init__.py", line 
3422, in run_clean
         become_root()
       File "/usr/lib/python3/dist-packages/mkosi/run.py", line 124, in 
become_root
         os.setresuid(0, 0, 0)
     OSError: [Errno 22] Invalid argument


Kind regards,

Paul