VI Labs True Keys Pianos

[hugy]

32 or 64bits kernel do not change a thing regarding the possibility to launch 64bits application.
Those are really two different thing.

http://support.apple.com/kb/ht4287

[MIDI Life Crisis]

I understand the 64 bit running the rare kernel extensions. I haven't changed anything in the system but don't think I checked the boot status since Mountain Lion was installed so it may be something the OS decides.

I don't understand why BTD performance improves with DP launched in 32 bit mode, but it does.

[kgdrum]

I just ran that 32/64 bit kernel selector app.
10.82 here
I have 64bit kernel at startup checked and it identifies the Mac as a 3.1
There's a big green check mark in the middle box which I assume means it's booted in the 64bit kernel.
Are you saying now you don't get that big green check mark in the middle box?
If I remember a Mac that will not run in the 64bit kernel will have a red slash line in the middle box instead,is that what you see now?

I was dealing with an upper tier lead tech @ Apple a few weeks ago when my boot backup died,I left him a message,I want to see if he has or can find any info on Macs that could run on the 64bit k now can't,he's a good guy maybe he can find out what has or would cause the change.
Have you done any of the Apple software updates recently?
I avoid them like the plague!!
Hopefully I'll hear back from him..........


Re:
"Also, the kernel startup mode selector app is indicating that the 64 bit kernel no longer is loading, even though Activity Monitor shows 64 bit apps running. It might be a Mountain Lion thing as I read last night that Apple has disabled some 64 bit kernels from starting up on some older Macs, but definitive info on that aspect has been difficult to discover."

Do you have a link,I can't find info related to this when I searched via google.

[MIDI Life Crisis]

The extreme righthand box indicates 32 bit. All others are 64 bit and yes, I have a big, green checkmark.

[kgdrum]

Damn ,I see the same damn thing!!
I suspect it's MLion those mf'ers!!!!
What sneaky bastards.....
I suspect it's probably not feasible to roll back to SLeo,I don't have a clone backup now as my drive died,wow,they giveth and taketh away......

[MIDI Life Crisis]

I have a SL b/u but never use it unless I need to update a webpage. The July 2011 release from Apple is posted here and elsewhere on the www but I couldn't find a definitive answer to why the 64-bit kernel isn't loading.

Weird, but even stranger is that DP is not able to BTD reliably in 64-bit mode.

[kgdrum]

Well I just got off the phone with a really nice tech support person @ OWC.
She said when updating to ML the Mac by default starts up in the 32bit kernel like originally designed,to change you need to either boot up holding the 64key or enter the command in terminal so the Mac always boots in the 64bit kernel again.

sudo systemsetup -setkernelbootarchitecture x86_64

I did that,I think it's in the 64 kernel as the resolution on my desktop looks a bit sharper and menu meters looks like the Mac is running a bit more efficiently.

But the 32/64 app still shows the same thing!

I was looking in Activity monitor is there anything there or in the Mac besides the app that tells us what kernel we're booted in?
I can't find a way to verify,I'd imagine there is but I don't know how,have you tried entering the command?

[kgdrum]

Just figured out,go to about this Mac, software(left side) extensions and it says YES by 64,so I think I'm booted in 64bit again.
see here:
http://support.apple.com/kb/ht4287

[MIDI Life Crisis]

I believe we are booted in 64 bit but the extension kernel is not loading. Many have said before it is not often used so perhaps Apple agrees?

Sys Prefs used to show the kernel loaded at software section but that too is gone with ML.

[kgdrum]

Did you reboot with 64keys or entering terrninal command?

I wonder if you try the stuff you couldn't do recently in 64 if you can now.

[kgdrum]

Seems like Apple hides info and things get more vague,very strange!

[MIDI Life Crisis]

Not exactly what I see anymore...

[kgdrum]

getting stranger,looking under software,applications.
The 32/64 bit kernel selector says NO under the 64bit (Intel) list,for the app itself.

[kgdrum]

OK,I think I just got clarification from a lead tech @ Apple.
He says ML only runs in the 64bit kernel,that's why it's not listed anymore.
Additionally he said if the Mac wasn't in the 64bit kernel we wouldn't be able to boot in 10.82 or install ML on the Mac,like the earlier models.
So maybe the command line entry had no effect and I imagined the change,not sure.
Maybe the issue you had was this VI and or DP related with it?

He also said the 32/64 app version we have (2010) might be too old to work in ML and it's incorrect,because Macs with 10.8 installed only boot in 64bit kernel.

We're not supposed to get more confused!

[MIDI Life Crisis]

Thanks, man! This is the first time that has been explained and it is a relief!

I'm not sure what is going on with my VI but I'm working in 32 bit today to get 'er done.

I feel so dirty...