[caiman-discuss] Changes to live CD boot to fix bug 6440

[Dave Miner]

jan damborsky wrote:
> Hi Dave,
> 
> 
> On 04/02/09 00:12, Dave Miner wrote:
>> This note is just an early warning of changes that are expected to 
>> arrive in build 111a, in order to fix
>>
>> 6440 Build 106 installer fails to start in 512 MB environment
>> http://defect.opensolaris.org/bz/show_bug.cgi?id=6440
>>
>> Briefly, we're splitting the boot archive for the live CD into 
>> separate 32- and 64-bit archives, which buys back a large chunk of 
>> memory, sufficient to overcome the bloat that's crept in since 2008.11.
> 
> With respect to separating boot archives, I am thinking if there might be a
> case when both might be needed during early stage of boot process. I am
> referring to 'min_mem64' GRUB option - it boots kernel in 32-bit mode even
> on 64-bit capable machines if there is not sufficient amount of memory
> (I think 1GB is required for LiveCD), since 32-bit kernel is less memory 
> hungry.
> I am not sure what is the order of related actions GRUB takes, so this might
> not be issue for this fix - just wanted to bring this up in order to be 
> sure.
> 

Not an issue.  GRUB picks the kernel and archive pair consistently by 
using the kernel$ and module$ constructs and accounts for the min_mem64 
setting in that selection, so you'll only need the modules that go with 
the kernel's ISA.

Dave