On Mon, Jul 11, 2016 at 7:45 AM, Kevin Wilson <wkevils@xxxxxxxxx> wrote: > Hi, > Thanks Todd. > The thing is that now CentOS is installed and it is the current > control and it indeed uses an older grub. So what do you suggest ? Replace it with the newer GRUB by booting Fedora: grub2-install /dev/sdX Try including the patch in this bug report: https://bugzilla.redhat.com/show_bug.cgi?id=1353026 And then run grub2-mkconfig -o /boot/grub2/grub.cfg > That I will reinstall Ubuntu on Fedora on the current machine so they > will the "current control"? It is quite a hassle as there is no free > partition for it (unless I will resize it); and already there are 3 OS > installed on that machine. I believe there should be another way to do > it with the old grub without installing another OK on the same > machine, The built-in method to discover and create menu entries for other Linux's is suboptimal. If you update the kernel on any of those distros, it's not reflected in the GRUB menu because each distro only updates its own grub.cfg; and the GRUB2 way of creating menu entries for other Linux's is done from scratch rather than pointing to the distro specific grub.cfg. It's super annoying and upstream could fix it but here we are... You can use /etc/grub.d/40_custom or 41_custom (read them and then pick whether you want to use your own drop in files or not, which I personally think is easier and more stable long term), to add a menu entry that points to each distro's grub.cfg using the GRUB command "configfile" for GRUB2 grub.cfg's, and the GRUB command "legacyconfigfile" for GRUB 0.9x grub.conf files. Now, you'll have a GRUB menu that lists your Fedora kernels, and one entry for each distro. If you choose a distro entry, you'll get a listing of that distro's kernels to boot. And last, there was no grub.conf creator for GRUB before GRUB 2. It was always done by hand. Anaconda would create an initial one at installation time, and grubby would keep it up to date. But there was no other way to create a new one from scratch other than by hand. -- Chris Murphy -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://lists.fedoraproject.org/admin/lists/users@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
