I´ve fully installed ubuntu
15.10 16.04 on an USB stick (no chroot/permanent live install), and managed to have it booting to BIOS as well as to UEFI.
How can I get secure boot working also on multiple machines?
sudo apt-get install linux-signed-generic grub-efi-amd64-signed Shim-signed
sudo grub-install --uefi-secure-boot # --force
what led to the fact that it was indeed able to secure boot on the machine where I did that, but there ONLY.
I thought it must be possible somehow, as it is also possible to boot the ubuntu install stick created with rufus with secure boot enabled, and that´s not bound to any machine. Maybe I´m thinking wrong on this, so I´d be glad on any help, searching for days already.
EDIT: Upgraded to 16.04, but did not change anything.