jeffberg Posted July 31, 2007 Share Posted July 31, 2007 Hey Guys, I am in the process of getting 9A499. I already have 9A466 installed on my 733 PowerMac G4. But I used my 1.67 PowerBook G4 to install 9A466 on the powermac. I have since sold that powerbook. Leo runs fine on the powermac, but when I boot from the install disc it simply says that I can't install OSX on this computer. Is there a way to change the requirements that the install disc checks for? Jeff Link to comment https://www.insanelymac.com/forum/topic/58579-changing-minimum-requirements/ Share on other sites More sharing options...
DsurioN Posted July 31, 2007 Share Posted July 31, 2007 I think it's possible, you have to remove some code in the installer that checks your CPU power, etc. I saw this somewhere but I just can't recall where... Link to comment https://www.insanelymac.com/forum/topic/58579-changing-minimum-requirements/#findComment-418132 Share on other sites More sharing options...
Guest Ramm Posted July 31, 2007 Share Posted July 31, 2007 It's very confusing to do. You have to create a sparse disk image of the 6.9gb original one, then edit the "Install Mac OS X.mpkg" package so it allows you to install it, then you need to create another read only disk image and burn it. Link to comment https://www.insanelymac.com/forum/topic/58579-changing-minimum-requirements/#findComment-418265 Share on other sites More sharing options...
jeffberg Posted July 31, 2007 Author Share Posted July 31, 2007 well it will be easier, because i don't have a dual layer burner i made a partition for the osx install disk image. so where is the install mac osx.mpkg? I found OSInstall.mpkg and OSinstall.pkg in /Library/Installation/Packages. But I can't find Install Mac OS X.mpkg. I looked in the contents of OSInstall.mpkg and OSInstall.pkg but couldn't find something that referenced system requirements and Pacifist is unable to open them. Link to comment https://www.insanelymac.com/forum/topic/58579-changing-minimum-requirements/#findComment-418280 Share on other sites More sharing options...
Schwinn555 Posted July 31, 2007 Share Posted July 31, 2007 OSInstall.mpkg is what your looking for. With Tiger and older versions of OSX they were easy to edit. You right clicked on show packages then open with text edit to edit ,easy if you know what to change . In Leopard Apple has switched to software called "Xar" to edit pkg's and it's done using Xar and in the Terminal . Much harder for non Unix experts and I've not been able to figure out how to do it. There is an edited OSInstall.mpkg available on some torrents that allows installs on G4' s slower then 800 MHz. However the installer still sees that my B&W is a G3 machine so won't install even with a G4 upgrade. Older versions of 10.5 ran fine on it. It also doesn't work for hackintoshs . Link to comment https://www.insanelymac.com/forum/topic/58579-changing-minimum-requirements/#findComment-418335 Share on other sites More sharing options...
mifki Posted July 31, 2007 Share Posted July 31, 2007 Its not software called Xar, its a compression type unlike the old tgz Link to comment https://www.insanelymac.com/forum/topic/58579-changing-minimum-requirements/#findComment-418343 Share on other sites More sharing options...
jeffberg Posted July 31, 2007 Author Share Posted July 31, 2007 got it, thanks guys. it is pretty easy all you have to do is copy OSInstall.mpkg to a place you feel comfortable working in... AKA the desktop open terminal and cd into the directory you want to extract to cd ~/Desktop/package then run xar xar -x -v -f ~/Desktop/OSInstall.mpkg then you get the extracted contents in the package folder open distribution in textedit and change the minimum speed to whatever you want and delete the bad mac motherboards and save then delete any .ds_store file if it was created rm ~/Desktop/package/.DS_Store then remake the archive cd ~/Desktop/package xar -c ./ -v -f ~/Desktop/NewOSInstall.mpkg copy that in place of the one on the install disc image and reburn This way will also allow it to boot on any mac that has a G4 chip addition Note: Tiger does not have XAR, i am not sure if you can copy it from /usr/bin on Leopard to /usr/bin on tiger, but I did this from within leopard Now just 6 hours until 9a499 finished Thanks again guys, Jeff Link to comment https://www.insanelymac.com/forum/topic/58579-changing-minimum-requirements/#findComment-418373 Share on other sites More sharing options...
Schwinn555 Posted August 1, 2007 Share Posted August 1, 2007 Thanks even I can perhaps manage to do that ;-) I've been wanting to try the newer versions of Leo but no one would share how to do it on my older PPC MAC. Link to comment https://www.insanelymac.com/forum/topic/58579-changing-minimum-requirements/#findComment-418401 Share on other sites More sharing options...
jeffberg Posted August 1, 2007 Author Share Posted August 1, 2007 if you need help feel free to email me. Link to comment https://www.insanelymac.com/forum/topic/58579-changing-minimum-requirements/#findComment-418468 Share on other sites More sharing options...
Aaron_0514 Posted August 22, 2007 Share Posted August 22, 2007 What about using something like XPostFacto ? Anyone try that method? I used an older version of XpostFacto to install Tiger on a supped up G3 Beige Tower. Link to comment https://www.insanelymac.com/forum/topic/58579-changing-minimum-requirements/#findComment-433054 Share on other sites More sharing options...
d235j Posted November 5, 2007 Share Posted November 5, 2007 Yes you can do this on Tiger, but first you must install XAR through DarwinPorts first (just copying the XAR bin from Leopard won't work, as it needs newer libraries). After that, the instructions are the same. Link to comment https://www.insanelymac.com/forum/topic/58579-changing-minimum-requirements/#findComment-496264 Share on other sites More sharing options...
Guest bikedude880 Posted November 6, 2007 Share Posted November 6, 2007 Yes you can do this on Tiger, but first you must install XAR through DarwinPorts first (just copying the XAR bin from Leopard won't work, as it needs newer libraries). After that, the instructions are the same. Or even easier (without DarwinPorts) is to get the source code and compile it yourself. Also, thanks for reviving a half-year-old topic... really appreciate it Link to comment https://www.insanelymac.com/forum/topic/58579-changing-minimum-requirements/#findComment-496495 Share on other sites More sharing options...
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