On 2019-01-18, Grant Edwards <[email protected]> wrote:
> On 2019-01-18, Daniel Frey <[email protected]> wrote:
>
>> As someone else mentioned you can mask grub-mkconfig. I didn't bother,
>> it isn't run automatically.
>
> I should have known that on Gentoo it wouldn't be. I ought to think
> about starting to switch to grub2. On one of my simpler installs, I
> may try out the chainloading from grub to grub2 scheme documented at
>
> https://wiki.gentoo.org/wiki/GRUB2_Migration
I had some spare time while watching a Windows 10 machine while away a
few hours doing updates (WTF does it take so long? Is it rebuilding
everything from sources?). So, I decided to give the above migration
scheme a try on one of my "simple" machines, and it worked swimmingly
except the auto-generated grub.cfg file fell over. I was not
surprised. The kernel started to boot, but then locked up at the point
where the video mode switches.
Fortunately, the chainloading scheme allows you to reboot into a
working system via grub-0.97 and tweak things until grub-2 works. I
manually created a grub.cfg file, and it worked fine. Then I did a
final 'grub2-install', uninstalled grub:0, and all that's left is to
clean the grub:0 files out of /boot/grub.
I'm still amazed by the giant mess that grub2-mkconfig spits out.
It's 90X larger than my manually generated config file:
# grub2-mkconfig 2>/dev/null | wc
438 1661 17888
# wc boot/grub/grub.cfg
10 17 200 boot/grub/grub.cfg
--
Grant Edwards grant.b.edwards Yow! But they went to MARS
at around 1953!!
gmail.com
