Hi Reiner, here's an idea how you can implement it using a hook. The hook is called for e.g. hooks/partition.DEFAULT In this hook you concatenate the disk_config files for all classes that match and write the output to disk_config/$HOSTNAME Then setup-storage will use this file. IIRC the FAI config space is mounted read-only, but writeable using a ramdisk. So you won't modify things on the server.
Here's some bash code: for c in $classes; do if [ -f $FAI/disk_config/$c ]; then cat $FAI/disk_config/$c >> $FAI/disk_config/$HOSTNAME done -- best regards Thomas