subiquity server using probert to execute `multipathd list maps` returning 'ok' and parse fails then installer fails

[Caio Vinicius]

I'm attempting to install Ubuntu 22.04 Server using a user-data file stored on a web server to automate the installation process. However, during the installation, it hangs for a while at the "probe" devices stage. It continuously retries, and the /var/log/installer file gets filled with logs. Within these logs, there's an error message stating:

Failed to parse multipath maps entry: ok: MMap.__new__() missing 2 required positional arguments: 'sysfs' and 'paths'

This error occurs because the installation process tries to execute the command multipathd show maps raw format %w,%d,%N from the following GitHub link: https://github.com/canonical/probert/blob/f34ae3c3f942a9c479fe928911053a302e146251/probert/multipath.py#L69C12-L69C57.

System Information:

    Ubuntu-Server 22.04.3 2024.02.17 (Cubic 2024-02-17 18:56)

I expected the installation to proceed normally without continuous retries.

[Caio Vinicius (csouza-f)]

subiquity-server-debug.log file