Official Mac OS X 10.6 Snow Leopard Thread & FAQ

[Doctor X]

"UBs with receipts."

Er . . . what is that?

I mean, obviously, I can clone everything, upgrade, try it out, if things do not work, I can go back.

--J.D.

[fryke]

UBs = Universal Binaries that contain both PPC and intel code. (So the installer can strip the app of its PPC code.)

Receipts = Small files or rather packages that contain a list of what was installed where. If you, say, install the OS, its receipt contains all the files and apps and drivers etc. and where they were put, along with their correct permission settings. (Disk Utility uses the receipt for repairing permissions.)

[Doctor X]

Okay . . . so if I happen to have a PPC program--which my Intel Mac can read--under Startup Items it is listed as PPC--it will not be remov'd, expung'd, destroy'd?

You may have to type more slowly for me. . . .

--J.D.

[fryke]

Your assumption is correct: I have to type more slowly for you. :P ... No, I mean: You're correct, a PPC-only application won't be removed. At the upgrade process, check in "customize" that Rosetta is installed. (It's the interpreter for PPC apps.)

[Doctor X]

Thanks! Will do that!

So now all I have to do it hit the "pre-order" on Amazon and wait:

--J.D.

[Captain Code]

This might be the way to enable the 64 bit kernel

To try to boot x86_64 kernel on Macintosh, edit this file:
/Library/Preferences/SystemConfiguration/com.apple.Boot.plist
find there:
<key>Kernel Flags</key>
<string></string>
and change it to
<key>Kernel Flags</key>
<string>arch=x86_64</string>

But it might break all your 32 bit drivers so don't expect it to be smooth after

[chevy]

Originally Posted by Satcomer

I saw a ScreenCastOnline using a Mac Mini and using the Plex application. It might be something you might would want to use.

I bought this one... but it was not very good for the stability of my Mac. I stopped using it and re-installed several softwares (Mail, Office,...).

[fryke]

Captain Code: That won't work on unsupported hardware AFAIK. It only changes default behaviour of _supported_ hardware, i.e. Core2Duo Santa Rosa platform or better. But I think anyone with 4 GB RAM or lower shouldn't care _anyway_. And you still get 64bit applications with 64bit processors, even if the kernel and extensions are run in 32bit. It simply isn't something worth bothering too much about. Sure, in one or two generations all the Macs will simply use 64bit kernels, extensions and apps, but that'll come automatically. Just trust Apple on this one.