[ale] lost a cpu core

[Geoffrey]

Raylynn Knight wrote:
> Geoffrey if you try the install on external drive and still have
> problems let me know.  I also have a MacBook Pro and could try booting
> your external install on mine.  This would help indicate whether it is
> a problem with the distro or your MacBook.

Thought I'd update the list on my recent success regarding this problem.

For whatever reason, I could not get the initial installation RHEL 5.4 
disk to even boot until I stumbled across a link that suggested the 
following boot parms:

acpi=force noapic irqpoll

I don't know why they worked, but they did.  Once installed, I found 
that I had to add them to my grub.conf to get the install to boot, but 
all was happy.  After moving to 64bit, I lost one core of my two core 
processor.  After much discussion with RH, I revisited these parameters 
and found that by removing the noapic, parm, my macbook would still boot 
and I got both cores.  The weird thing is, I've tried every combination 
of these parms before in order to remove them from my boot process in 
the past, but my macbook would not boot.  There must be something about 
the latest RHEL 5.5 kernel that resolved that issue.

The weird thing is, I did not have this issue on 32bit RHEL 5.4.  That 
is, I had both cores using all these parms.

> 
> Ray
> 
> On Sun, Mar 14, 2010 at 11:23 PM, Richard Bronosky <Richard at bronosky.com> wrote:
>> What's cool about the external drive approach is that you are given a
>> 2 step of testing for free. Find a few friends with MBPs and have them
>> boot off the drive too.
>>
>> On Sun, Mar 14, 2010 at 8:18 PM, Geoffrey <lists at serioustechnology.com> wrote:
>>> Richard Bronosky wrote:
>>>> The MBP will boot off an external drive. I think you would save
>>>> yourself some time by installing 64bit RHEL 5.4 on a spare drive and
>>>> checking that out.
>>> I've still got the 5.4 kernel, but same problem with I boot it.  But I
>>> don't know if there's something else going on with the rest of the 5.5
>>> stuff that might be causing an issue.
>>>
>>> I think I'll give your suggestion a shot and see what happens.
>>>
>>> --
>>> Until later, Geoffrey
> 
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-- 
Until later, Geoffrey

"I predict future happiness for America if they can prevent
the government from wasting the labors of the people under
the pretense of taking care of them."
- Thomas Jefferson