Thanks for Your reply Phillip,
Yes, that helped.
Still my HP ProBook 3440s is somehow stupid, after installation without any
huge warning and with grub installed my notebook still boot Windows first and I
need to F9 - Boot selection during bios boot and choose ubuntu EFU loader
manually.
Thats
Your disk is currently partitioned to boot in bios mode, but you booted
the 16.04 installer in EFI mode. A warning message prompted you that
this could be a problem and recommended performing a bios mode install
instead, but you chose not to. You either need to perform the bios mode
install, or
