Re: GRUB fails to load kernel on linux-sparc64

[Eric Snowberg]

> On Apr 17, 2019, at 3:40 AM, John Paul Adrian Glaubitz <address@hidden> wrote:
> 
> On 4/17/19 11:34 AM, John Paul Adrian Glaubitz wrote:
>> Going to decompress the kernel now and see if that helps. I'm just surprised
>> that GRUB supposedly doesn't support compressed kernels on sparc64 when
>> we have used that before with 2.02.
> 
> Okay, the uncompressed kernel works. Guess it was just pure luck that it
> worked with the compressed one in the past.

I don’t know the history behind the compression limitation, it was documented 
as a platform limitation before I started using GRUB on SPARC64.  It may be 
related to the hardcoded 2M heap.  In the past I’ve bumped it up and had better 
results with other things. You could try increasing it in: 
grub-core/kern/ieee1275/init.c (line 156) and see if it resolves your problem. 
I don’t know the impact a change like this would cause to older platforms or if 
the maintainers would accept such a change.