Does Mac OS X 10.7 now run 64-bit kernel in Mac mini
(Setup: Mac mini late 2009, 2.66GHz Intel Core 2 Duo, 4GB RAM).
According to the "32- or 64-bit Kernel Startup Mode Selector.app" my Mac mini has a limitation where it is technically capable of booting with 64-bit kernel but Apple's stock 64-bit EFI does not allow it at least in Mac OS X 10.6. So only 32-bit kernel is possible without hacking the EFI.
So in Mac OS X 10.6 the Activity Monitor lists the kernel as 32-bit.
But in Mac OS X 10.7 there are no non-64-bit kernel or other components in Activity Monitor. Booting back to Mac OS X 10.6 lists the kernel as 32-bit.
So does 10.7 really now boot with 64-bit kernel? Has Apple has changed this in 10.7?
Also VMware Fusion 4 runs in 10.6 and can put Lion Client in a VM. VMware recommends installing 64-bit version of Lion client although 32-bit seems to run OK, too.
The only problem I have is that the only way to get VMware 4.0.2 to run Mac OS X 10.7.1 guest (with VMware Tools installed) in full screen is to first boot VMware in Single Window, _then_ switch to Full Screen. Booting 10.7.1 guest straight to Full Screen does not work because then the 10.7.1 login screen is briefly shown, but then it is scrambled and unusable. VMware is looking into this.
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Can I run 32-bit kernel on OS X Yosemite?
Can I run 32-bit kernel on OS X Yosemite?
Not sure if you are still having an issue, but I've encountered similar problems with more recent OS'. I am NOT AN EXPERT HERE so I want to make that clear. I may not be 100% correct in my understanding.
To my understanding, OS X Lion was the last OS that you can run 32-bit kernels on, but most people seem to prefer Snow Leopard for this task due to better legacy support and how 10.6.8 Snow Leopard is an extremely reliable OS. For Mountain Lion and later, you more or less run the compatibility mode that is the same context as you can do from Windows 8.1. I've had limited success here. I have a copy of OS X Snow Leopard so I can run at 32-bit installed on my hard drive and run OLD apps that do not like Yosemite. As I am running it through VMWare Fusion 7, I can't tell you if you can run Snow Leopard in 32 bit mode via a secondary install or not (I think it depends on your hardware and if your hardware shipped with Mountain Lion or later, then this is NOT possible even if booting through a 32 bit-capable OS...I COULD BE WRONG!)
One other option is if you have an old copy of Windows XP or something, you can do a 32 bit install through a virtual machine and update the firmware through the VM (obviously you would need drivers to allow it to recognize USB or Firewire or etc. devices to update the FW of a hardware component, which Parallels and Fusion are both capable of and do very well...but they are paid (free trial for both). Oracle has a VM which is free, but I do not know much about its functionality.) There are even certain software apps made to run older programs on OS X reliably...I do not know if they would be of benefit in your case or not.
Obviously that is a little bit of a pain but truth be told, I find that both Apple and Microsoft OS' have limitations when attempting to run older programs on newer OS. Old programs don't tend to run well on Yosemite or Windows 8.1, despite the fact that the operating systems themselves are reasonably reliable. I don't blame them as it seems this is just something that is very difficult to do reliably in a world where new technology is favored over legacy support. So that is why I have a 32-bit capable version of both OS X and Windows in addition to the current respective 8.1 and 10.10.2.
If this is a one-time deal and you do not think you will need to do the same thing down the road, you could skip all of the above and just borrow a computer from a friend with a 32-bit OS, or even go to a Fedex Kinkos or something and see if they will let you run the application from there. A lot of Mac users do have Parallels or Fusion on their Mac so someone local might be able to help you out. As Snow Leopard was the last OS to incorporate certain hardware support, it is still used extensively (some estimate it is used on around 1/4 of all Macs). -
Mac Pro not able to boot into 64 bit kernel?
Hello,
I've been trying to boot while using the 6 and 4 buttons held down to no avail. This mac pro was bought in 2007 (work computer). Am I not able to boot into 64 bit mode with Snow Leopard? If so, does that mean I can't take advantage of the 64 bit kernel?
Thanks,
ScottMan, Yes, when I am rendering all 8 cores in Maya, up to 4 gigs of ram are being used. Why is that so hard to believe? I should be able to render in RAM preview in After Effects a whole lot more than i can now without cacheing.!!!!
Is Maya a 64 bit application? If Maya is not using more than 4GB, than you should be talking to the Maya developers.
You should be able to use Applications -> Utilities -> Activity Monitor and look at the "Kind" field. If it says "intel (64 bits)", then it is a 64 bit application.
How many times do I have to state "YES, I will be using more than 4 gigs of RAM per program"?
Why is it the tech people really don't understand how intensive program dynamics like Maya and Blender are,
You are responding to my post, so I'm going to say, I have been working for major computer manufactures since the early 70's working with "Big Iron" computer systems, not PCs, and I most likely know a lot more about how computers work, then many computer users. Please do not tell me I do not understand. I've been working with 64 bit code since the early 90's.
and yet Apple touts their excellence in 64 bit programs like AFX, yet, I can't use more than 4 gb of RAM?
Are you saying AFX (is that After Effects?) is not a 64 bit application yet? If not, then I suggest you talk to Adobe, not Apple.
Just for fun, I wrote a sample program, which allocated a large amount of memory. I ran it on my iMac with is booted with a 32 bit 10.6.2 Snow Leopard kernel. Here are the results:
PID RESIDENT VIRTUAL PageFlt Reclaim COMMAND
54296 4.74G 9.32G 0K 0K tmp
My program has more than 4GB of physical RAM (4.74GB), and a virtual memory size of 9.32GB.
If I use Activity Monitor, I can see that my program is listed with a Kind of "intel (64 bit)".
So if Maya cannot use more than 4GB of memory, it is a Maya problem. Talk to the Maya developers.
We aren't cows Apple. We are people with limited money trying to make it in the world. Not every mac pro user is a business and we don't want too much control.
You are not talking to Apple, just other Mac users. If you wish to tell something to Apple, I would encourage you to use either:
<http://www.apple.com/feedback/macosx.html>
or
<http://bugreporter.apple.com>
Free ADC (Apple Developer Connection) account needed for BugReporter -
Snow Leopard 64 bit kernel on Mac Pro - Personal Experience.
Curiosity got the better of me so I decided to install Snow Leopard on clean external USB drive (this is a rather slow drive, I believe it is only 4500 RPM), but good enough to test things out.
I formatted the drive before installation in Leopard (HFS+ Journaled, GUID partition), booted off the install DVD and proceeded to install on this external disk. Installation took about 50 min (this is not upgrade but clean install).
After the install was finished, I manually copied over some applications from my Leopard install (together with their application settings and preferences files in ~/Library and /Library). All of them functioned properly.
I am happy to report that Photoshop CS4, Nikon Capture NX 1.3, Sling Player, MacVIm (without ATSUI text renderer), iDefrag, Toast Titanium 9, Transmission etc all worked with no issues.
The color profile for my 30'' ACD screen looked a little too bright and less contrasty (this is gamma 2.2 profile I created for Leopard some time ago), but it is rendered differently in Snow Leopard. Which brings me to another point. My ancient Monaco Optix XR screen calibration software (with USB spectrometer) works with Snow Leopard as well. It does require Rosetta though.
Next thing I tried booting in 64 bit kernel. That worked fine, but now I wanted to add my printers. HP LaserJet 1300 was recognized instantly and added for me, so I guess Apple already provides 64 bit driver for it.
Next is the Epson Stylus Photo R2880. It was recognized (as in type and model) but no driver was available for it. However, Epson has just recently released the driver for it. The question was is it 64 bit as well. As it turns out the installer for the drive requires Rosetta, which wasn't very encouraging, but once installed the driver works just fine with 64 bit kernel. So I guess they do provide 64 bit driver as well.
As a final step I did X bench performance comparison:
This is the result for Snow Leopard
Results 209.29
System Info
Xbench Version 1.3
System Version 10.6 (10A432)
Physical RAM 32768 MB
Model MacPro3,1
Drive Type WD 5000BEV External
CPU Test 199.19
GCD Loop 329.53 17.37 Mops/sec
Floating Point Basic 159.06 3.78 Gflop/sec
vecLib FFT 131.91 4.35 Gflop/sec
Floating Point Library 314.56 54.78 Mops/sec
Thread Test 841.97
Computation 1155.73 23.41 Mops/sec, 4 threads
Lock Contention 662.20 28.49 Mlocks/sec, 4 threads
Memory Test 213.36
System 336.79
Allocate 606.04 2.23 Malloc/sec
Fill 247.60 12038.67 MB/sec
Copy 310.68 6416.90 MB/sec
Stream 156.13
Copy 157.24 3247.78 MB/sec
Scale 157.88 3261.67 MB/sec
Add 155.20 3306.02 MB/sec
Triad 154.28 3300.33 MB/sec
Quartz Graphics Test 216.11
Line 192.80 12.84 Klines/sec [50% alpha]
Rectangle 237.36 70.87 Krects/sec [50% alpha]
Circle 204.41 16.66 Kcircles/sec [50% alpha]
Bezier 229.12 5.78 Kbeziers/sec [50% alpha]
Text 223.22 13.96 Kchars/sec
OpenGL Graphics Test 96.71
Spinning Squares 96.71 122.69 frames/sec
User Interface Test 356.31
Elements 356.31 1.64 Krefresh/sec
And here is the equivalent test for Leopard 10.5.8
Results 252.74
System Info
Xbench Version 1.3
System Version 10.5.8 (9L30)
Physical RAM 32768 MB
Model MacPro3,1
Drive Type WDC WD3200AAJS-41VWA0
CPU Test 190.72
GCD Loop 327.96 17.29 Mops/sec
Floating Point Basic 160.63 3.82 Gflop/sec
vecLib FFT 134.16 4.43 Gflop/sec
Floating Point Library 235.57 41.02 Mops/sec
Thread Test 830.59
Computation 1124.19 22.77 Mops/sec, 4 threads
Lock Contention 658.59 28.33 Mlocks/sec, 4 threads
Memory Test 202.30
System 284.32
Allocate 314.73 1.16 Malloc/sec
Fill 243.49 11838.90 MB/sec
Copy 306.07 6321.67 MB/sec
Stream 157.00
Copy 160.48 3314.67 MB/sec
Scale 157.71 3258.27 MB/sec
Add 155.89 3320.85 MB/sec
Triad 154.07 3296.01 MB/sec
Quartz Graphics Test 243.39
Line 219.20 14.59 Klines/sec [50% alpha]
Rectangle 295.86 88.33 Krects/sec [50% alpha]
Circle 240.56 19.61 Kcircles/sec [50% alpha]
Bezier 235.66 5.94 Kbeziers/sec [50% alpha]
Text 238.06 14.89 Kchars/sec
OpenGL Graphics Test 185.37
Spinning Squares 185.37 235.15 frames/sec
User Interface Test 351.35
Elements 351.35 1.61 Krefresh/sec
As you can see the overall system performance has degraded quite a bit. Snow Leopard performance is only about 82% of Leopard performance.
Close inspection shows that some things are actually faster in Snow Leopard, e.g. CPU has higher score, Thread test has higher score, Memory test is faster. However, quartz test is slower, and Open GL text test is 2 times slower.
This is quite a degradation in performance, and I'm hoping it will be addressed in GPU driver upgrades.
Also, I also noted the dreaded choppy animations, esp for dashboard, which is so choppy it is embarrassing. Like I said, this will probably go away with better driver.
I hope someone else finds this useful.I plugged the external drive with Snow Leopard (it's set to always boot in 64 bit kernel), and booted up iMac with it. It started fine, but it decided to use 32 bit kernel anyway. This is iMac version 7.1 with 64 bit EFI and 4 GB of RAM. It should technically be possible to boot 64 bit kernel, but doesn't work. I won't even try my Aluminum Macbook .
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Apple USB Modem Not Supported in Snow Leopard Running 64-bit Kernel Mode
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I would suggest you take this question up in the MacBook Pro forum or perhaps the Snow Leopard forum. This forum is for question about older, Pre-G3 Apple hardware and so not the forum where you'll be most likely to get a quick and applicable response.
Regards. -
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Hello,
I always upgrade my software with the Software Updater, and recently installed the suggested 10.5.7 kernel/package. Now, my machine thinks it's 32-bit, where IIRC, the CPUs are Core 2 Duos which are 64-bit.
I'm a *nix guy and so this clued me in:
$ uname -a
darwin my-macbook-pro.local 9.7.0 Darwin Kernel Version 9.7.0: Tue Mar 31 22:52:17 PDT 2009; root:xnu-1228.12.14~1/RELEASE_I386 i386
What did I do wrong? How do get I 4-bit running again?
Thanks!
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http://discussions.apple.com/category.jspa?categoryID=250 -
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2009 Macbook Pro, 3.06 GHz Intel 2 core, Max 10.6.8.
Model Name: MacBook Pro
Model Identifier: MacBookPro5,2
Processor Name: Intel Core 2 Duo
Processor Speed: 3.06 GHz
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Total Number Of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
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SMC Version (system): 1.42f4
Serial Number (system): 7302300GANE
Hardware UUID: B2D4B4B4-CD92-5C7A-BDC2-527D30DD8DF3
Sudden Motion Sensor:
State: EnabledEDIT: RESOLVED
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Hope this helps someone else! -
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