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More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: decay
Date: March 27, 2012 10:56PM
[www.lowendmac.com]

The latest requirement is that your Mac must boot into a 64-bit kernel. That's okay, you might think, all Core 2 Duo Macs are 64-bit. Well yes, they but not all can boot into 64-bit kernel. For whatever reason, Apple decided that some Macs around the 2008/2009 era can only boot natively into a 32-bit kernel.

To check if your machine is automatically booting to 64-bit, have a look in your System Profiler under Software and there is a line that says "64-bit kernel and extensions" - if that says Yes, then you are fine.

To check if your machine is capable of booting to 64-bit, but defaults to 32-bit, hold down the 4 and 6 keys while pressing the power button. Once booted, then have a look in your System Profiler under Software and see what it says under "64-bit kernel and extensions".



---
I buy records. Getting rid of some? Let me know.
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: colonel panic
Date: March 27, 2012 11:12PM
Quote
decay
To check if your machine is capable of booting to 64-bit, but defaults to 32-bit, hold down the 4 and 6 keys while pressing the power button.

Wouldn't that be 46-bit?



"They don't call me Colonel because I'm some dumb a$$ army guy" Colonel Homer J. Simpson
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: M A V I C
Date: March 28, 2012 12:07AM
Yet another reason to go Hac.




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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: Manlove
Date: March 28, 2012 12:59AM
So my recently revived 2008 Macbook Pro has reached the end of its software capabilities! Coming this Summer, Obsolescence! Brought to you by Apple Inc. No biggy, I have no other Apple devices to sync it with via the cloud or other means so I might just have to make my next computer a hackjob. C'est la vie. Apple has enough money, they don't need mine, again.
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: Racer X
Date: March 28, 2012 01:11AM
I'm still on 10.4 on my C2D MBP. Don't see any of that under sys profile.
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: GGD
Date: March 28, 2012 01:22AM
Quote
Manlove
So my recently revived 2008 Macbook Pro has reached the end of its software capabilities! Coming this Summer, Obsolescence! Brought to you by Apple Inc. No biggy, I have no other Apple devices to sync it with via the cloud or other means so I might just have to make my next computer a hackjob. C'est la vie. Apple has enough money, they don't need mine, again.

Which 2008 MBP is that? My 2007 MBP (MacBookPro3,1) can run a 64 bit Kernel and should be compatible with Mountain Lion.

Beware that some models (like mine) did run a 32 bit kernel by default in Snowleopard, but in Lion they run a 64 bit kernel. So don't judge it based on system profiler in 10.6. See what Lion reports.

And BTW: That MacBook that the author of that page is complaining about also boots into the 64 bit kernel in Lion (but not Snowleopard). So it should support Mountain Lion.



Edited 1 time(s). Last edit at 03/28/2012 01:31AM by GGD.
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: freeradical
Date: March 28, 2012 01:41AM
My mid 2010 iMac is running 10.6.8 and system profiler says it is not running 64 bit kernal and instructions.

If some 2008/2009 models are incapable of running ML, wouldn't Apple need to keep SL, Lion, and ML available?

Anyhow, couldn't a firmware patch fix a problem like this?
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: freeradical
Date: March 28, 2012 01:55AM
One more thing...Apple is still selling Core 2 Duo refurbs...imagine if they sold one of those machines and the buyer couldn't upgrade to ML this Summer...
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: GGD
Date: March 28, 2012 01:58AM
Quote
freeradical
My mid 2010 iMac is running 10.6.8 and system profiler says it is not running 64 bit kernal and instructions.

My early 2008 iMac runs a 64 bit kernel when booted into 10.7. I suspect that yours will also.

As I said before, don't judge anything by the 10.6 behavior, check 10.7.
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: Bimwad
Date: March 28, 2012 02:54AM
Quote
GGD
Beware that some models (like mine) did run a 32 bit kernel by default in Snowleopard, but in Lion they run a 64 bit kernel. So don't judge it based on system profiler in 10.6. See what Lion reports.

Precisely. Disregard what Snow Leopard's System Profiler says, use the one in Lion.

The requirements didn't change in DP 2 and aren't new at all. They've always been: 64-bit CPU, EFI64, and a discrete graphics processor. Mountain Lion is going to be 64-bit only.

There are some machines out there meet those requirements, but did not have Apple support to run the 64-bit kernel in Snow Leopard, including the Mid-2007 Al iMacs, which appear to be the oldest models that ML will support at this point. (And note that this is unrelated to the effort to avoid compatibility issues due to the lack of 64-bit drivers at the time of SL's release, or the default kernel choice; the machines didn't support the 64-bit kernel at all, despite being "64-bit" )

Apple addressed that situation in Lion, and those models happily run Lion with a 64-bit kernel.

LEM was helpful when I was trying to nurse an old G4 along, but I find their reportage on newer equipment can sometimes be lacking, and the overall tone colored too much by the "Apple is screwing us just because we're running older machines" attitude, whether it's true or not. If the author's MBP runs Lion in 64-bit, then it should have no issues with Mountain Lion.
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: GGD
Date: March 28, 2012 03:12AM
And many of those C2Duo models that don't support the 64 bit Kernel are also the ones that can't use more than 3GB of RAM. That RAM limitation probably already makes Lion a bit challenging.
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: Panopticon
Date: March 28, 2012 05:50AM
Quote
M A V I C
Yet another reason to go Hac.
agree smiley






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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: Will Collier
Date: March 28, 2012 06:46AM
Quote
M A V I C
Yet another reason to go Hac.

... and while you're doing so, it's also a good reason to stick with Snow Leopard...



Edited 1 time(s). Last edit at 03/28/2012 06:46AM by Will Collier.
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: Mr645
Date: March 28, 2012 06:47AM
does that mean my PowerMac G5 is out? It sucks that Macs last so damn long and just keep running and running.
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: cbelt3
Date: March 28, 2012 06:48AM
"Developer Preview"... hopefully will resolve this issue. However, 32 vs. 64 bit is pretty significant. Odd that this is a restriction in some models.
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: clay
Date: March 28, 2012 06:59AM
I'm just disappointed that my Mac Pro 1,1 (2006) doesn't seem to be compatible. I know it will all sort itself out when we have the final release in hand, but this might be what encourages me to upgrade to something newer.
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: Bernie
Date: March 28, 2012 08:11AM
Dito!
My 2008 quad core said 32 in Leopard but 64 in Lion.




Staunton, Virginia
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: bazookaman
Date: March 28, 2012 08:12AM
Quote
clay
I'm just disappointed that my Mac Pro 1,1 (2006) doesn't seem to be compatible. I know it will all sort itself out when we have the final release in hand, but this might be what encourages me to upgrade to something newer.

Yes. Like a Hackintosh.




__________________________________
Never underestimate the predictability of stupidity
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: Black
Date: March 28, 2012 08:47AM
Quote
colonel panic
Quote
decay
To check if your machine is capable of booting to 64-bit, but defaults to 32-bit, hold down the 4 and 6 keys while pressing the power button.

Wouldn't that be 46-bit?

Just press the 6 first :-)

I tried the above on my 2009 mini running SL and ended up with another "no" to 64 bit.
Could be because of aftermarket keyboard?
Fortunately, I don't ever intend to run anything newer than Snow on it.




MR/F Guestmap: [www.mapservices.org]
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: colonel panic
Date: March 28, 2012 09:33AM
On my Mac Pro when I hold down the 4 and 6 it boots in 46 -bit, but when I hold down the 6 and 4 it boots in 64-bit.





"They don't call me Colonel because I'm some dumb a$$ army guy" Colonel Homer J. Simpson
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: haikuman
Date: March 28, 2012 09:55AM
Running SL @64 bit here natively me thinks. . . on my iMac *(:>*

Late 2009 Model built in 2010


Version: 1.0.3
Last Modified: 7/2/09 8:16 AM
Kind: Universal
64-Bit (Intel): Yes


Hardware Overview:

Model Name: iMac
Model Identifier: iMac10,1
Processor Name: Intel Core 2 Duo
Processor Speed: 3.06 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 12 GB
Bus Speed: 1.07 GHz
Boot ROM Version: IM101.00CC.B00
SMC Version (system): 1.52f9



“Stay Hungry Stay Foolish"
Steve Jobs

"There are only two mantras yum and yuk mine is yum "
Bernard Mickey Wrangle<>Tom Robbins<> "Still Life With Woodpecker"

"There is a fine line between a rut and a groove"
G.D. Kittredge III

"






Edited 1 time(s). Last edit at 03/28/2012 10:13AM by haikuman.
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: decay
Date: March 28, 2012 09:57AM
System Version: Mac OS X 10.6.8 (10K549)
Kernel Version: Darwin 10.8.0
Boot Volume: MacbookPro
Boot Mode: Normal
Computer Name: Tech Laptop
Secure Virtual Memory: Not Enabled
64-bit Kernel and Extensions: No

Model Name: MacBook Pro
Model Identifier: MacBookPro2,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.33 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 3 GB
Bus Speed: 667 MHz
Boot ROM Version: MBP21.00A5.B08
SMC Version (system): 1.14f5

Discontinued June 5, 2007.



---
I buy records. Getting rid of some? Let me know.




Edited 2 time(s). Last edit at 03/28/2012 09:58AM by decay.
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: Dazed & Confused
Date: March 28, 2012 10:58AM
This is disconcerting news. A four year old computer not being able to run the latest OS is, IMHO, a real slap in the face to users. I can understand how G5 and other relics are left behind, that's pretty much a given. And yes, I know, people can still use Tiger 'till they die but still...

I don't know, maybe Apple is just getting too darn successful for their own good and is becoming the "MicroSoft Bully" we Mac users have long despised.

Just my 2 cents,
D & C
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: ka jowct
Date: March 28, 2012 11:06AM
I think a lot of us can get along just fine without Mountain Lion.
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: GGD
Date: March 28, 2012 11:29AM
Quote
Dazed & Confused
This is disconcerting news. A four year old computer not being able to run the latest OS is, IMHO, a real slap in the face to users.

Could you be specific about which Mac sold in 2008 (4 years ago) does not support the 64 bit kernel when running Lion?
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: Lew Zealand
Date: March 28, 2012 11:58AM
Quote
decay
System Version: Mac OS X 10.6.8 (10K549)
Kernel Version: Darwin 10.8.0
Boot Volume: MacbookPro
Boot Mode: Normal
Computer Name: Tech Laptop
Secure Virtual Memory: Not Enabled
64-bit Kernel and Extensions: No

Model Name: MacBook Pro
Model Identifier: MacBookPro2,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.33 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 3 GB
Bus Speed: 667 MHz
Boot ROM Version: MBP21.00A5.B08
SMC Version (system): 1.14f5

Discontinued June 5, 2007.

Added a little extra bold for ya there.
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: decay
Date: March 28, 2012 12:00PM
i'll boot into Lion when i'm not busy & check that, too.

i don't really need or want Mountain Goat 10.8.



---
I buy records. Getting rid of some? Let me know.
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: Black
Date: March 28, 2012 12:05PM
Quote
colonel panic
On my Mac Pro when I hold down the 4 and 6 it boots in 46 -bit, but when I hold down the 6 and 4 it boots in 64-bit.


This needs to be reported to every other mac forum!




MR/F Guestmap: [www.mapservices.org]
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: haikuman
Date: March 28, 2012 12:38PM
We know you are in de Nile decay jest smiley

i don't really need or want Mountain Goat 10.8. <~~ aka Adam Sandler



“Stay Hungry Stay Foolish"
Steve Jobs

"There are only two mantras yum and yuk mine is yum "
Bernard Mickey Wrangle<>Tom Robbins<> "Still Life With Woodpecker"

"There is a fine line between a rut and a groove"
G.D. Kittredge III

"


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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: GGD
Date: March 28, 2012 12:41PM
Quote
Lew Zealand
Quote
decay
System Version: Mac OS X 10.6.8 (10K549)
Kernel Version: Darwin 10.8.0
Boot Volume: MacbookPro
Boot Mode: Normal
Computer Name: Tech Laptop
Secure Virtual Memory: Not Enabled
64-bit Kernel and Extensions: No

Model Name: MacBook Pro
Model Identifier: MacBookPro2,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.33 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 3 GB
Bus Speed: 667 MHz
Boot ROM Version: MBP21.00A5.B08
SMC Version (system): 1.14f5

Discontinued June 5, 2007.

Added a little extra bold for ya there.

I think that model is one of the ones with the 3GB RAM limit and really doesn't support the 64 bit kernel. And it will have been discontinued for 5 years by the time Mountain Lion is released (and Lion or Mountain Lion with just 3GB of RAM probably wouldn't be an enjoyable experience).
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: decay
Date: March 28, 2012 01:03PM
well, this is my work laptop.

i'd love to have something newer, faster, & lighter.

not sure what our upgrade schedule is for this year... i'd rather get a raise & slog on with this... smiling smiley
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: haikuman
Date: March 28, 2012 01:38PM
Sometimes your genius prevails *(:>*

""" i'd rather get a raise & slog on with this... """



“Stay Hungry Stay Foolish"
Steve Jobs

"There are only two mantras yum and yuk mine is yum "
Bernard Mickey Wrangle<>Tom Robbins<> "Still Life With Woodpecker"

"There is a fine line between a rut and a groove"
G.D. Kittredge III

"


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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: decay
Date: March 28, 2012 05:58PM
this old dog won't hunt the Mountain Goat.

System Version: Mac OS X 10.7.3 (11D50)
Kernel Version: Darwin 11.3.0
Boot Volume: Lion
Boot Mode: Normal
Computer Name: Lion MBP
User Name: Lion MBP
Secure Virtual Memory: Enabled (i don't recall turning this on)
64-bit Kernel and Extensions: No



---
I buy records. Getting rid of some? Let me know.
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: GeneL
Date: March 28, 2012 10:32PM
Model Name: Mac Pro
Model Identifier: MacPro1,1
Processor Name: Dual-Core Intel Xeon
Processor Speed: 2.66 GHz
Number Of Processors: 2
Total Number Of Cores: 4
L2 Cache (per processor): 4 MB
Memory: 12 GB
Bus Speed: 1.33 GHz Boot ROM Version: MP11.005C.B08
System Version: Mac OS X 10.6.8 (10K549)
Kernel Version: Darwin 10.8.0
Boot Volume: Samsung 1TB
Boot Mode: Normal
64-bit Kernel and Extensions: No

oh snap smiley



gl @ Dana Point, CA
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: Speedy
Date: March 29, 2012 02:27AM
I'm still @#$%& that I have to use Lion for iCloud when MobileMe ends. I don't have Lion running on anything.



Saint Cloud, Minnesota, where the weather is wonderful even when it isn't.
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Re: More Macs Left Behind by Developer Preview 2 of Mountain Lion
Posted by: tahoedrew
Date: March 29, 2012 01:41PM
Quote
Speedy
I'm still @#$%& that I have to use Lion for iCloud when MobileMe ends. I don't have Lion running on anything.

Yep, I'm annoyed, but slowly accepting it.

~A
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