10.6 Snow Leopard PowerPC Development

[PowerPC74]

BTW, Qemu won’t possibly work to virtualize macOS ppc on macOS ppc? That would be useful for testing. (I think it is presently just broken on ppc host, but that should be fixable.)

There is no Hypervisor in users space on Mac OS X PPC, I've used it plenty on Linux PPC to run the Mac OS.

So you their have to create a hypervisor or use Linux PPC. Mac-on-Linux had one and someone ported it to OS X PPC, it was called Mac-on-Mac but I don't think it works beyond 10.3 and not sure it works with the G5, and I think it can only boot OS 9.

 

[FBSD_Mac]

Yeah bluetooth is currently non-functional. I really need to update the table of known issues so apologies for that, there are lots of quirks and bugs to iron out still.

No worries at all!!

By the way, the networking seems a little fragile. I'm not sure exactly what caused it but after rebooting following both my firewall (command line and GUI) fiddling and Bluetooth testing I ended up with no internet again. My password for wifi was remembered but no IP address could be assigned until I manually added the local router to the DNS configuration.

After that I had an IP address but no working internet. I tried the command line again (same as I posted earlier with a value at the end of either 0 or 1) as well as the GUI but couldn't get it to work again. Oddly, trying to ssh to another computer on my network (using the IP address) took a really long time to return a login prompt... by which point the connection had timed out. This is very much like the earlier testing I did with super delayed UDP responses.

Ultimately I gave up and re-installed your A5 image and did some minor customization of settings. I made my own image of that configuration after a few reboots convinced me the network was again stable. If I manage to reproduce the broken state I'll be able to "rewind" to a working state relatively easily now. If I can reliably reproduce that state several times I'll share the steps I took to do so here.

Now I notice that I can ssh directly to the PowerBook with no issues whatsoever! <confused face>

It should go in /System/Library/Frameworks/AGL.framework/Versions/A/AGL

Thank you, @educovas !

 

[Tankerthebuberz]

Now that dhcp is working correctly I’m considering trying this….does iwork and iLife install ok I seem to remember issues with 10A190 and iWork?

 

[jktwice]

Now that dhcp is working correctly I’m considering trying this….does iwork and iLife install ok I seem to remember issues with 10A190 and iWork?

Yeah they install fine. In fact iWork 9.1 will install just fine. These seem to be Universal apps still, so give 9.1 a whirl if you'd like to!

Other software I have tried that installs fine:

Reason 4 - No problems.

Logic Pro 9 - Installs fine, but demands a component be installed before launching. If you install this component the app becomes a brick. Make sure you replace whatever components it demands of you with the Leopard equivalent. It is probably pulling an Intel only version from Apple's servers. You cannot migrate your Logic Pro 9 install from another disk unless you use the official Apple migration one... which crashes anyways... I will figure this out myself.

Avid Media Composer 3.1.1 - Installs fine with OpenGL crash. Refer to educovas' post for a fix.

 

[barracuda156]

Yeah they install fine. In fact iWork 9.1 will install just fine. These seem to be Universal apps still, so give 9.1 a whirl if you'd like to!

Just to make sure, do they actually work? I recall installation was fine on 10a190, but apps did not launch.

 

[atester2001]

FYI to all, ipfw (ipfw and ip6fw) is disabled by default on OS X Snow Leopard and only one firewall should be running at any given time. I recommend disabling it until we can confirm it doesn’t have issues. It was also deprecated post-10.6.8.

ipfw configuration files (at least on server) should be located at /etc/ipfilter/

ip6fw.conf.apple
ip6fwstate-on
ip_ address_groups.plist
ip_address_groups.plist.default
ipfw.conf
ipfw.conf.apple
ipfw.conf.default
ipfwstate-on

Use the sysctl tool to enable/disable the firewall:

$ sysctl -w net.inet.ip.fw.enable=1

You can disable the firewall by changing the setting to 0.

OS X has its own Apple Application Firewall which is the one that should be controlled by system preferences, and i’m not convinced that it’s behaving as it should be.

There is no GUI for ipfw (only on server) and both can be configured via command line or by editing their various preference and configuration files.

To enable or disable the apple application firewall from the command line, use the following:

defaults write /System/Library/Preferences/com.apple.alf globalstate -int 1

0 - for off
1 - for only specific services
2 - for essential services only

The main preference file for the Application Firewall is located in /Library/Preferences/com.apple.alf.plist

The executable files for the Application Firewall are located in /usr/libexec/ApplicationFirewall

This makes no difference. It appears the application firewall simply doesn't work right, perhaps the .plist settings don't work for the kernel or extension installed.
Is there perhaps a way to remove the application firewall kernel extension (assuming the default is open)?

BTW, the com.apple.alf.plist is in /Library/Preferences not /System/Library/Preferences.

 

[atester2001]

Real Life (tm) has intruded on my ability to test for some time recently but this was wonderful to see!! I've gotten it installed and I'm posting this from the InterWebPPC in that image. Great job @ChrisCharman ! I'd love to understand what combination of updates finally cracked the UDP issue.



@atester2001, did one of your combination of settings tried actually allow ssh connections from another computer to your iMac? I tried setting the second option for the Firewall and turning on Remote Login in Sharing but cannot connect to my PowerBook remotely. I set these using the Systems Preferences UI but did attempt @ChrisCharman's command below when that didn't work (without any change in behavior):

sudo defaults write /System/Library/Preferences/com.apple.alf globalstate -int 0

No that still doesn't work. As far as I can tell the only setting that works is the allow specified one (1)
That will allow ssh but not screen sharing.

I'd like to totally remove/disable the application firewall, trying to find a way...

 

[jktwice]

Just to make sure, do they actually work? I recall installation was fine on 10a190, but apps did not launch.

To be clear, "at minimum" just means that you can only see Pages working in this screenshot. Keynote and Numbers work well too.

 

[jktwice]

Does anyone else have an issue where if one decides to boot Snow Leopard on start up or chooses it as their start up disk, the graphics driver for the 6600 will not initialize, leaving a black screen?

To get around it, you have to simply just boot into it from the boot manager.

 

[barracuda156]

Does anyone else have an issue where if one decides to boot Snow Leopard on start up or chooses it as their start up disk, the graphics driver for the 6600 will not initialize, leaving a black screen?

To get around it, you have to simply just boot into it from the boot manager.

That is the case, you may find discussion of the issue earlier here.