Cannot install/start distri in UEFI-mode

[Toni Avantaggiato]

Break of installation with following error:
"Failed to install grub.efi at /target/. Without a bootloader you will not be able to start the operating system"
The OS cannot be started in UEFI mode or elsewhere.
This happen when the installation is done with a Live-USB with persistenz and isn't distri-dependent.
The installed OS can be chrooted & updated, nevertheless a post installation of grub.efi is not possible.

Starting the installation with a DVD (without persistenz) solve the problem.
I suppose that persistenz (done with ext2) cannot understand GPT or UEFI

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[Toni Avantaggiato (toni-avantaggiato-8)]

I don't try to make an Live-USB without persistenz

[Toni Avantaggiato (toni-avantaggiato-8)]

Besides, in dual-boot with Win8 starts anyway and always Win8 or only Linux.
That less to do with mentioned (unetbootin) package but more with Grub/OS-prober not let start Win8 anymore.
The past solution with Easy-BCD don't work anymore besides if Win8 cannot start the user has no more possibility to run easy-bcd.
Maybe that's the occasion to think about a bootloader (e.g. rEFInd) capable to boot Linux, Win8 & Mac with appealing look.
The actual solution with deactivating 30_OS-prober, read ESP/EFI-partition-UUID and set manually a chainload in 40_custom is a roundabout way or not user/newbie friendly

[Toni Avantaggiato (toni-avantaggiato-8)]

After some tries, can I maybe describe the situation better.

My thy:
Disconnect disk with Ubuntu and reconnect disk with Win8
Ones started Win8 and replace again the (Win8 750 GiG HDD) disk with Kubuntu disk (128 GiG SD) have I the same result
as just after the installation with USB-Stick in persistenz-modus.
Practically, no Kubuntu-entry in UEFI-BIOS any-more.
In the EFI/ESP-partition of the disk is the folder Kubuntu with grubx64.efi but (as said) no possibility to start Ubuntu/Kubuntu anymore.

To solve the problem, I made following:
- Chroot the installed system
- Install "efibootmgr" if not yet done &
- Setup manually an entry in UEFI-BIOS.

I cannot say what cause the missing set up of U-Kubuntu-entry in the U-EFI-BIOS...
Is it Uneetbootin or Ubiquity or USB-Creator?

Fact is that after an installation with USB-Stick-Live (with permanence) is no entry in UEFI-BIOS (NVRAM)
The result is a not bootable system

chrooting + installing of efibootmger + manual insert of entry solve the problem

Do someone (else) test (re-encounter) this behavior?

Thanks for your attention.