boot - how can I make a portable ubuntu installation on a usb stick secure bootable? - Ask Ubuntu


i´ve installed ubuntu 15.10 16.04 on usb stick (no chroot/permanent live install), , managed have booting bios uefi.

how can secure boot working on multiple machines?

i tried 

sudo apt-get install linux-signed-generic  grub-efi-amd64-signed shim-signed

followed 

sudo grub-install --uefi-secure-boot # --force

what led fact indeed able secure boot on machine did that, there only.

i thought must possible somehow, possible boot ubuntu install stick created rufus secure boot enabled, , that´s not bound machine. maybe i´m thinking wrong on this, i´d glad on help, searching days already.

edit: upgraded 16.04, did not change anything.

thanks!

this command solved problem now:

grub-install --efi-directory /mnt/esp --boot-directory /mnt/rootfs/boot --target x86_64-efi --removable /dev/sdb --uefi-secure-boot

this lets me boot on uefi systems secure boot enabled. errors while booting 

error: file ´/boot/' not found. error: no such device: /.disk/info.

it´s no real problem still boots, if have idea causes , how solve, i´d thankful hint. error: no such device: /.disk/mini-info.


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