chuuey Posted January 22, 2007 Share Posted January 22, 2007 Hi guys, I have an issue with one of my laptops where i installed OSX86, the problem is that when i try to dual boot it with windows xp, after selecting Mac OS from the boot menu nothing happens, it reverts me back to the OS selector menu, i have my Windows XP partition set as active and the partition for osx is a Primary partition. I pasted the chain0 file i found on the installation DVD[Jas10.4.8 amd intel sse2sse3+ppf1] to C:\ edited the boot.ini file, everything should work fine, but well the selector doesnt seem to boot it. Oh and other thing when i tried setting the OSX partition as active, osx launched w/o any problems, seems that I did something wrong with the chain0 method. If the laptop specs[i doubt] are needed i can post them here, any help appreciated, thanks Link to comment https://www.insanelymac.com/forum/topic/39459-chain0-problem/ Share on other sites More sharing options...
Bruce Wang Posted January 22, 2007 Share Posted January 22, 2007 Have you edited boot.plist to show up darwin boot loader? If not, add below keys in boot.plist: <key>Timeout</key> <string>5</string> Or press F8 right after selecting OS X in Window boot loader to show up darwin boot loader. Bruce Link to comment https://www.insanelymac.com/forum/topic/39459-chain0-problem/#findComment-281308 Share on other sites More sharing options...
cbmkgd Posted January 22, 2007 Share Posted January 22, 2007 (edited) Firstly, this is a well know situtation: you select osx, then the darwin loader quickly loads the active partition... which is the xp partition. When selecting osx in the menu, quickly press F8 to get the darwin prompt; you should then be able to see darwin's os selection (xp and osx). To let darwin loader show you the menu longer, you'll have to modify the "boot.plist". /edit: see post above. Secondly, a nicer option would be to use the darwin loader only: you've already encountered that as you mentioned above, by making the osx partition active. You then saw darwin's menu with WinXP and OSX as choices, right? If so, well, there you go, you don't need the chain0 method, which would anyway lead you to the darwin menu upon osx selection! /edit: oops, someone answered while i was typing... Edited January 22, 2007 by cbmkgd Link to comment https://www.insanelymac.com/forum/topic/39459-chain0-problem/#findComment-281315 Share on other sites More sharing options...
chuuey Posted January 22, 2007 Author Share Posted January 22, 2007 thanks for the help guys, ill try it today when i get back from school:D Link to comment https://www.insanelymac.com/forum/topic/39459-chain0-problem/#findComment-281530 Share on other sites More sharing options...
chuuey Posted February 2, 2007 Author Share Posted February 2, 2007 ok i finally found time to fix this on my girls laptop, it works like a charm, thanks for the help guys^^ Link to comment https://www.insanelymac.com/forum/topic/39459-chain0-problem/#findComment-291897 Share on other sites More sharing options...
Eddie Turfboer Posted March 4, 2007 Share Posted March 4, 2007 I found this problem also at my machine, thanks for the clear descriptions of wht why! Many thanks. Link to comment https://www.insanelymac.com/forum/topic/39459-chain0-problem/#findComment-316166 Share on other sites More sharing options...
GA-SIE Posted October 18, 2008 Share Posted October 18, 2008 I have been trying to boot into Windows XP, Leopard and Tiger from a single drive with much difficulty. I have my second partition active (Leopard) and it boots fine, and if I hit enter and select the first partition, Windows XP boots fine. However, if I choose the third partition (Tiger) I get a panic. I made Windows active and used chain0 and I can again boot Windows or Leopard but can't get to TIger. To fix this I modified chain0 as follows: In Windows copy chain0 to chain2, chain3 and chain4 for booting the second, third or forth partition. Run CMD to get to a command window and type the following: DEBUG chain2 a187 <Enter> cmp cl,3 <Enter> jnz 1c7 <Enter> nop <Enter> <Enter> w <Enter> q <enter> DEBUG chain3 a187 <Enter> cmp cl,2 <Enter> jnz 1c7 <Enter> nop <Enter> <Enter> w <Enter> q <enter> DEBUG chain4 a187 <Enter> cmp cl,1 <Enter> jnz 1c7 <Enter> nop <Enter> <Enter> w <Enter> q <enter> chain0 will boot the first partition of type is AF or A8 or AB chain2 will now only boot partition 2 if the type is AF or A8 chain3 will now only boot partition 3 if the type is AF or A8 chain4 will now only boot partition 4 if the type is AF or A8 I went back to partiton 2 being active for Leopard and if I want Windows I hit enter and select the first partition and then let Windows boot after the timeout. If I want Tiger, I boot Window and then select Tiger which is setup to use C:\chain3 and once Darwin starts, I have to hit enter and select Tiger since Darwin always wants to bbot the active partition. If you need to boot a partion of type AB and don't need A8 you can change the value at 190 to AB but I only needed AF so it's not an issue. Link to comment https://www.insanelymac.com/forum/topic/39459-chain0-problem/#findComment-935449 Share on other sites More sharing options...
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