On Tue, 2014-04-22 at 12:17 +0100, Arthur Dent wrote: > The reboot put me back into my old F16 install (at least I know that > hasn't been screwed up!) with the grub menu offering me only varying > kernels from F16. > > It seems F20 has not installed the bootloader properly. > > What are the steps for getting F20 to boot (while, if possible still > giving me the option to boot into F16)? OK - So now I'm really flummoxed. Here's what I did: I booted into the F16 install. I ran os-prober which found the new F20 kernel on the other partition (it still listed it below all the F16 ones) and ran grub2-mkconfig -o /boot/grub2/grub.cfg This allowed me to reboot and see the new F20 install (listed about half-way down the list of choices on the grub menu). The F16 install is still the default. I was then able to boot into this 3.11.10-301.fc20.x86_64 kernel. I did a bit of tinkering (pointed /home to the /home partition etc) and then ran yum update. This brought in the latest kernel (3.13.10-200.fc20.x86_64). I ran os-prober and grub2-mkconfig -o /boot/grub2/grub.cfg again. For good measure I even installed grub-customizer and, sure enough, running that showed a lovely list with 3.13 at the top, 3.11 beneath it and 3.6 (F16) below that. My thinking here is that I am booted *into the F20 kernel* therefore any changes will now be written to /boot *here*. A save and a reboot and... Back to the original grub screen... F16 kernels at the top, the 3.11 F20 kernel below them and NO 3.13 kernel listed! So when I run grub2-mkconfig -o /boot/grub2/grub.cfg from within the F20 kernel where is it writing to and why isn't the bootloader seeing it? Any help much appreciated. I can boot into F20 at least now (but not the latest kernel) but i have to do it manually (the default it still the F16 kernel). Thanks Mark
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