For a friend I'm repairing a computer so I have a brand new hard drive lying around. I've found documentation that Linux is capable of booting from a hard drive even if the computer is not UEFI enabled.
So using GParted I've prepared the hard disk for GPT and I've created three BTRFS partitions on it for boot, root and home. The GDisk program indeed detects GPT is available. When I try to install Kubuntu 14.04 I'm getting stuck immediately. The installer complains about not enough space being available on the drive. So somehow it does not find the three partitions.
I've found a few comparable questions on this site and on SuperUser but all involve a dual install and they more or less all suggest zapping GPT in favor of MBR, which is not what I want. I just want a single Kubuntu install.
Apparently the Kubuntu installer has no option to perform action manually.
How can I force the installer to recognize the partitions.
And as a secondary problem: I found an (old) article that advises to create a small bios_grub partition. Is this still necessary? According to GDisk there is a 'protected MBR' on the drive.