Multiboot Fedora 21 and CentOS 7

asked 2014-12-15 11:35:28 -0500

Janman gravatar image

updated 2014-12-16 06:28:01 -0500

deadrat gravatar image

I want to multiboot Fedora 21 and CentOS 7 on the same harddrive. I have installed both OS'es, but only the last installed OS will show up on grub screen.

I have tried updating grub using grub-mkconfig (also for the grub2), but without luck.

I have absolutely no experience with these two distributions, but I have installed many other debian and BSD based operating systems and on one drive, where grub updated successfully. What is different about these distros? What should I do during installation?

TL;DR: How to multiboot Fedora 21 and CentOS 7 so they are both visible in GRUB?

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maybe you're updating the grub.cfg for one OS, but using a different one when booting?

randomuser gravatar imagerandomuser ( 2014-12-16 12:06:28 -0500 )edit