Thanks On Wed, Oct 3, 2018 at 11:46 PM Iznogoud <iznogoud at nobelware.com> wrote: > > > > > I'll start here - - - -its clear that you didn't read what I said - - > > -I wanted to use two > > different kernels from the SAME distribution and that I just couldn't > > get to work and I > > couldn't find nada on line about it either. Doing it for different > > *nixes - - - sorry that's > > easy and I have done that in the past its trying to do it for the same > > os and just have > > two significantly (4.0.9 (iirc) and 4.16 (again iirc)) different > > kernels that proved part of > > the unfindable (sic) continuum. I just couldn't find a way to stick > > those two together. > > > OK, OK. Think what you want. Here is my final attempt, in the spirit of > keeping the discussion productive. > > The way to do what you want is to simply edit the grub.conf and add a menu > entry that uses the kernel that you want to use. You can boot from the same > root filesystem (say /dev/sda1, or whatever), you can boot from a different > one, a duplicated one, a different drive, etc. With some simple GRUB command > line typing/editing and by knowing what you are doing, it can be done. > > Here is how. > > Start here for a very brief sample: > https://www.youtube.com/watch?v=jqysW8RmRBU > (This guy is doing it in a virtual machine, which is what I had recommended > that you do to "practice" and not screw anything up, but you shut the idea > down for nonsense reasons.) > > Here is a more verbose solution that matches your needs: > https://www.youtube.com/watch?v=i97y5Y2nChs > At the beginning he tells you how you can "lose" a bootloader... maybe not > important to you. Then, fast-forward to 8:29, where he tells you what he is > going to do, and walks you through the steps of modifying the grub.conf. > Now recall from the previous video what keywords were given to GRUB from the > command line, like "linux /vmlinuz" and so on. These are arguments/switches > that go into a GRUB "menu item" as you will see. This guy's grub.conf is > built from an automated configuration from the grub-mkconfig or whatever, > and so it is very populated with crap. But he goes right ahead and cleans > them up, does what he wants, etc. You want to get a menu item that has the > booting from the standard kernel of the distro, and duplicate it with the > new kernel in the new menu item. When you are done, you do not even have to > re-install the bootloader; it is that simple. > > Here is a less useful, more laborious process, video that uses external toosls: > https://www.youtube.com/watch?v=OUWpUdCWFbI > > Here is another good one that will teach you a thing or two: > https://www.youtube.com/watch?v=prHDES9XmjU > This one starts with the standard GRUB configuration that does the auto- > detect thing again, which somebody pointed out on this list. > > I hope this helps. > > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota > tclug-list at mn-linux.org > http://mailman.mn-linux.org/mailman/listinfo/tclug-list