Notes on installing kubuntu on a diskless intel NUC
I encountered some pitfalls. The graphical installers complained about there being not enough disk space (7,9G where 8,4G is needed), clearly, this installer didn't realize that the SDHC was not an intended target. Bailed out.
Used ubuntu server install. Had to use an USB Stick as the installer does not recognize the internal SD-Slot and complains about not finding the CD-ROM.
Do not forget to create the EFI System Partition!
Configuring the iSCSI Target in the bios was straightforward. The first time I had to boot with the UEFI console.