I tried installing 15.10 on my ssd which is /dev/sdb (unfortunatly),
- format/set a new gpt partition table to /dev/sda and /dev/sdb and let the installer do its job
- setup the partitions myself where i used /dev/sdb1 with 530MB as a EFI boot partition, left /dev/sda unformated and installed the root on /dev/sdb2, selected /dev/sdb in the drop down menue for bootloader installation (tried selecting /dev/sdb1 didnt work either)
- tried creating new partitiontables for ssd and hdd then tried installing it on /dev/sda with letting the installer do the partitions..
sadly, none of these things worked.. only thing which might work is throw out the /dev/sda ..
i tried boot-repair but it tried installing an mbr on a gpt partitioned table? it didnt work anyway so..
the result is always the same: loops back to a (bios-provided)-menue for selecting a boot device.
any ideas..? boot-repair report http://paste.ubuntu.com/15686832/ (the machine is a thinkpad x220)
similar but didnt work (as i tried it) Fresh install of Ubuntu doesnt boot, UEFI. boot-repair doesn't help