I'm trying to install Debian to a partition (not the whole disk) on my external HDD.
I'm choosing the "Manual partition" option where I select my 100GB partition as root "/" of my external hdd.
The install goes through but it never prompt me on which MBR to install GRUB. It automatically installs it on my primary drive. I would like to install it on my external HDD mbr so that I can plug my drive anywhere and can boot into Debian.
How can I achieve this ? Am I missing a step when partitioning ?