I have installed a Scientific Linux 6 (like Centos 6) on my first drive sda and use it as my working linux, in order to continue to user my working ditribution I have Installed a Scientific Linux 7 on sdb.
Using boot priority on bios setup I am able to start SL 6 on sda or SL7 on sdb
Is it possible to configure grub on sda in so that at startup it will also run the grub boot loader on sdb, so choose which distribution start ? My intention is to let installed grub on sdb in order to have ready the new SL7 installation as soon as I finish configure it