Since hours I'm trying and cant figure it out.
Most tutorials deal with Windows and Linux, some say GRUB does recognize the other installation, some say you need to override the first GRUB in the MBR with the second installation and others say don't override
On the first Debian installation in made these partitions:
5 ext4 logical
6 ext4 logical
7 ext4 logical
8 swap
I did set "Mount point" to "/" on 5. And write GRUB to the MBR.
On the second Debian installation i did set "Mount point" to "/" on 6.
Then comes GRUB and i see one Debian 9 installation.
But no matter if i install GRUB again to the MBR or cancel the installation, something is always messed up and if i try to boot i get all kind of funny things (errors).
On the boot screen the first installation is doing something that needs 1.30 Minutes:
Code: Select all
A start job is running for dev-disk-by\some_letters_numbers.dev
Why is it so hard to dual-boot Linux