No matter if you boot with 64 or 32 bit kernel, OS X, for the most part,
will allow a 64 bit application to address 64 bit of memory.
Booting in 64 bit kernel requires drivers to be compatible in 64 bit.
MacPro 1,1 (1st Gen) cannot boot in 64 bit kernel as the EFI is 32 bit
only (EFI is similar to BIOS in PC world).
On 7/12/2013 6:51 PM, johnrobmoore wrote:
> I remember that being an issue early on. I don't know if it was resolved. My MBP Pro circa 2009 summer shows that the 64 bit kernel and extensions are Yes and I haven't had any issues that I know of but I have a software license on the box. I'm trying to figure out if the mac will know to run 64 bit software as 64 bit if the 64 bit kernel and extensions is not Yes. I was under the impression that the mac os would mix and match the 32bit software and 64 bit software and act accordingly but I may have misunderstood this behavior.
>
> --- In Avid-L2@yahoogroups.com, Robert Lawson <avidrhl@...> wrote:
>> Wasn't it that booting into the 64-bit kernel wouldn't allow the software
>> to see the dongle?
>>
>>
>>
>> ---
>> Rob Lawson
>> System Administrator, ACSR ISIS, Windows & Interplay
>> CBS News
>>
>>
>> On Fri, Jul 12, 2013 at 1:42 PM, John Moore <bigfish@...> wrote:
>>
>>> **
>>>
>>>
>>> I've tried to refresh my mind on booting in 64 or 32 bit kernal on Macs.
>>> I seem to recall that there was some mode where the mac new what apps are
>>> 64 bit and those that are 32 and would act accordingly but I don't remember
>>> the specifics or if that even makes sense. I read how some kernal
>>> extensions aren't 64 bit compatible but I'm really sketchy. Can someone
>>> help me understand?
>>>
>>>
>>> John Moore
>>> Barking Trout Productions
>>> Studio City, CA
>>> bigfish@...
>>>
>>> [Non-text portions of this message have been removed]
>>>
>>>
>>>
>>
>> [Non-text portions of this message have been removed]
>>
>
>
>
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