Something I wasnt able to find out in FAI docs was how to ignore existing partitions when setup-storage runs. I dont have any preserve<no> in my storage configuration files at config/disk_config/, but if the target disk for a FAI installation was previously partitioned, FAI stops the installation right at:

Executing: mdadm --examine --scan --verbose -c partitions
Cannot satisfy pre-depends for true: vgchange.........................
Error in task partition. Traceback: task_error task_partition task task_install task task_action task main
$LOGUSER is not defined...................
FATAL ERROR. Installation stopped.

I can solve this by deleting all target disk partitions using fdisk/cfdisk/sfdisk/dd'ing the MBR and rebooting the installation media, but how can I automate the cleaning of anything FAI may encounter at the target disk?

Thank you in advance,
Norman

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