Normand; Out standing in that "data" disk is intact !
Install grub - make sure it is correct version corresponding between the pen drive and the version installed onto the hard drive.
I am of a mind to do this in 3 stages;
1. install grub onto sda's MBR
2. mount and remove grub from the sdb "data" disk
3. update-grub from the sda install, as sdb's grub is gone will not be picked up on sda's boot code.
stage 1 : boot the live media -> CLI -> terminal codes:
Done installing grub onto sda, unmount sda and move onto sdb; stage 2
sudo mount /dev/sda1 /mnt
sudo grub-install --root-directory=/mnt /dev/sda
at this point I want to pause...any others input is welcome !
sudo umount /mnt
sudo mkdir /mnt/part5
sudo mount /dev/sdb5 /mnt/part5
ls -la /mnt/part5 #to identify for sure the directories containing grub config files (/boot???)
sudo umount /mnt/part5
a) cannot "chroot"into sdb as no operating system is installed;
b) can not run normal "apt get remove grub" commands as will operate on the live medium
c) -> ONLY option I can see is to manually delete the identified grub directories and files present on sdb -
-----------anybody got a better method ?????---------------
remaining to be done after grub is removed from sdb is to update grub on the sda install//waiting to get sdb's grub files removed.
what ever it takes to do it right