The problem: after installation Kubuntu on external SSD (Transcend ESD400 512Gb) on UEFI computer I can't use it on another one. I made some attempts but all of them were unsuccessful.
My computer: UEFI, Core i7 - 4 cores, Windows 7 Ultimate 64bit, 2 internal drives with GPT, external SSD with GPT.
Kubuntu distro: LiveUSB, created with Universal USB Installer 188.8.131.52, Kubuntu 14.04 LTS
External SSD was partitioned with GParted, partitions are alligned.
After each installation SSD was formatted and repartitioned. GRUB was checked: version 2.02, EFI (not grub-pc).
Attempt 1: with plugged internal drives.
I booted from LiveUSB. Perform usual installation. My partition table:
512Mb - EFI - fat32 30Gb - / - ext4 100Gb - /home - ext4 50Gb - /usr - ext4 50Gb - /opt - ext4
Bootloader was installed on External SSD (/dev/sdc).
After rebooting I found 2 boot entries
ubuntu in UEFI. If my external SSD is plugged and I choose every of this 2 entries - everything works well: Kubuntu starts and works. If the external SSD is off - a black screen
Minimal BASH-like line editing is supported appeared. If I choose
UEFI TS512... (boot entry with label of the external SSD), it seems that the next entry works (
Windows Boot Manager).
Attempt 2: with unpluged internal drives.
Installation procedure was the same. After rebooting system started and worked. But after plugging the internal drives, on booting from external (both
UEFI TS512... entries) a black screen with blinking text cursor appears and nothing wants to start. If I choose
Windows Boot Manager Windows starts well.
Attempt 3: tried to modify efi files.
dev/sdc1 and renamed to
bootx64.efi. Nothing new - it goes down the list of entries until
Windows Boot Manager.
Attempt 4: tried to modify
/boot/grub/grub.cfg replaces all
hd0. And in
fstab I changed the UUID of EFI partition: before it pointed to
/dev/sda1, now it points to
So how can I make a portable system on external SSD, that will boot on every UEFI computer, but not only on mine?