[yocto] GRUB fix for 1.1: Preferred approach for default grub version

[Tom Zanussi]

On Mon, 2011-10-03 at 16:18 -0700, Tom Zanussi wrote:
> On Mon, 2011-10-03 at 13:40 -0700, Darren Hart wrote:
> > 
> > On 10/03/2011 12:07 PM, Tom Zanussi wrote:
> > > On Mon, 2011-10-03 at 12:01 -0700, Richard Purdie wrote:
> > >> On Mon, 2011-10-03 at 11:48 -0700, Darren Hart wrote:
> > >>> When grub2 was merged int oe-core, it became the default (rather than
> > >>> being explicitly requested by the 64b meta-intel BSPs). This breaks the
> > >>> live install on 32b systems, like the n450 - installing grub v1.99 with
> > >>> a grub v1 config.
> > >>>
> > >>> We have a couple options on how to fix this.
> > >>>
> > >>> 1) Set PREFERRED_PROVIDER_grub="0.97" in all 32b x86 machine configs
> > >>> 2) Set DEFAULT_PREFERENCE="-1" in the grub_1.99.bb recipe which would
> > >>>    affect all of oe-core.
> > >>> 3) Some alternate approach which would be the equivalent of
> > >>>    DEFAULT_PREFERENCE, but only for meta-yocto BSPs or the poky
> > >>>    "distro".
> > >>>
> > >>> Given the time frame, I'd prefer to agree on the approach before writing
> > >>> and testing patches. Preferences?
> > >>
> > >> I thought I'd been assured grub2 worked fine for our 32 and 64 bit
> > >> platforms? :/.
> > >>
> > >> The correct question here is why doesn't grub2 work on 32 bit platforms?
> > >>
> > > 
> > > I did test it with both 32-bit and 64-bit BSPs in meta-intel, so it
> > > should work for the n450 too.
> > 
> > I checked out edison in poky in meta-intel and built core-image-minimal
> > for n450. By default it builds GRUB 2, which after install boots to a
> > GRUB prompt with no menu.
> > 
> 
> I'm not even getting that far with edison - it fails at 'Searching for a
> hard drive'.  I'd be happy to have it fail with no menu.
> 
> Can you send me the commit ids for meta-intel and poky that actually got
> you that far, and if you could a serial capture of the install?
> 

Never mind, I actually didn't have a hard drive (wrong power source).
Once I changed that, I got a good install (on crownbay).

It would still be useful to have the serial capture for the n450
though...

Tom


> Thanks,
> 
> Tom
> 
> > Using the PREFERRED_PROVIDER method above with the edison branches
> > results in a GRUB 1 menu after install.
> > 
> > --
> > Darren
> > 
> > > 
> > > Tom
> > > 
> > >> The answer might be "we need for time than is available in the 1.1
> > >> release to fix it" but I'd at least like to see the answer to the
> > >> question before we start with workarounds.
> > >>
> > >> Cheers,
> > >>
> > >> Richard
> > >>
> > > 
> > > 
> > 
> 
> 
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