Le 2015-03-30 14:48, Stefan Lamby a écrit :
Also I am not sure, what "ubuntu" means in this case: Both are ubuntu -
one at
the stick, the other on the hd. How can
I find out which one is the correct synonym for the installation I like
to start
into? Could grub_uefi also be what I want? How to figure out?
I have zero experience with EFI. However, as far as I know, each OS
writes to the EFI partition in a directory named /efi/<distribution>.
If you have twice installed Ubuntu, into different partitions, then the
second installation probably has overwriten the /efi/ubuntu contents.
Thus, my advice would be to boot a live/usb Linux OS, then chroot to
your on-disk Ubuntu (with its /boot mounted), and finally reinstall the
boot-loader from there.
Yves.
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