On 07/17/2014 04:05 PM, Lamar Owen wrote: > On 07/17/2014 02:41 PM, Edward Diener wrote: >> Programming is about calculations as well as logic. It cannot be >> impossible to calculate how big core.img is, how much space is in the >> partition in which grub2 is installed and either tell the end-user it >> can or cannot be done. > For more on this from the GNU GRUB developers, please see > https://www.gnu.org/software/grub/manual/grub.html#BIOS-installation > I can only say that I have always used a dedicated /boot partition for a Linux distro, I have never had a Linux distro have access to a /boot partition in a different Linux distro, and the only thing I have ever manually done with a /boot partition is back it up somewhere offline. What problems this straighforward use of the /boot partition, and installing the bootloader on it, can entail in this sort of scenario, which must be pretty common, I cannot guess. I do understand that CentOS7, as an Enterprise Linux distro, may want to limit an installation of grub2 from being installed on a separate /boot partition but at the same time the assumption being made is that CenTOS7 should now controlling bootup of a computer. I think thsi needs to be documented. I did manage to install grub2 in my CentOS7 /boot partition, and everything seems to be alright. The only negative effect is that CentOS7 changed my BIOS time incorrectly. But that has been fixed.