cucacu Posted December 2, 2006 Share Posted December 2, 2006 I get all the hype of MacOS on PC and now I want to uninstall it from dual booting. Currently, it runs fine with Darwin bootloader, and installed in disk02 as active partition. I tried to search all forum without any information how to get rid of the MacOS to return back to normal boot. How can i do this? Please instruct.... My thoughts about this: Partition Magic to make Local Disk C: active Get WindowsXP installation disk to fix the boot loader. Link to comment https://www.insanelymac.com/forum/topic/34699-how-to-uninstall-macos-x86-from-dual-boot-with-xp/ Share on other sites More sharing options...
Rammjet Posted December 2, 2006 Share Posted December 2, 2006 Use any Windows/Linux/OSX utility to set the Windows partition active. That's it. Link to comment https://www.insanelymac.com/forum/topic/34699-how-to-uninstall-macos-x86-from-dual-boot-with-xp/#findComment-246209 Share on other sites More sharing options...
joe75 Posted December 2, 2006 Share Posted December 2, 2006 cucacu, after you have XP back, use disk utility off osx install disc to format your disk02 back to windows format, or you can use "set id=" in diskpart on XP Link to comment https://www.insanelymac.com/forum/topic/34699-how-to-uninstall-macos-x86-from-dual-boot-with-xp/#findComment-246215 Share on other sites More sharing options...
MadDoggyca Posted December 2, 2006 Share Posted December 2, 2006 this deservce a real answer> Delete/format/Repoartion "HFS" "OSX Drvie" to "NTFS" useing ether fdisk/partionmagic/Gparted and soo on after HD are back to the way u want it rreboot pc with the windows XP disk inserted and boot of CD..... when it as k u to ether install/repair/exit. Hit "R" to bring up the console..... follow the boot instrations and when your at C:\Documents and settings\ and soo on tpye the following fixmbr fixboot fixmbr fiixboot I do it twice liek that just so the xp know what it supsoe to do the first time..... type exit let it reboot. DO NOT BOOT CD ...... and before you know it the XP boot screen comes up OR Skip the Partion BS and go right to the Insert you windows XP disk and follow steps.... this way u can boot xp by it self then once in XP u can use Computer manigment to format the OSX Drive toooo.... ether way works Link to comment https://www.insanelymac.com/forum/topic/34699-how-to-uninstall-macos-x86-from-dual-boot-with-xp/#findComment-246316 Share on other sites More sharing options...
Rammjet Posted December 2, 2006 Share Posted December 2, 2006 this deservce a real answer> I interpret his request to be to give up on his OSX installation and quit using the Darwin bootloader. I don't see where he has any problems with MBR. So, setting the Windows partition "active" should make the Windows (NTLDR) bootloader available. And then he should be able to boot Windows. I he wants to completely eliminate OSX from his hard drive and recover the parition, then he should follow joe75's suggestion. Link to comment https://www.insanelymac.com/forum/topic/34699-how-to-uninstall-macos-x86-from-dual-boot-with-xp/#findComment-246432 Share on other sites More sharing options...
joe75 Posted December 2, 2006 Share Posted December 2, 2006 The only way the MBR would be changed is if an fdisk was ever performed on any of the OS x86 installs, then fixmbr and possibly fixboot would be needed I don't think PartitionMagic can format or read HPS+ partitions, but I use the older version 7. Link to comment https://www.insanelymac.com/forum/topic/34699-how-to-uninstall-macos-x86-from-dual-boot-with-xp/#findComment-246472 Share on other sites More sharing options...
Rammjet Posted December 2, 2006 Share Posted December 2, 2006 The only way the MBR would be changed is if an fdisk was ever performed on any of the OS x86 installs Disk Utility updates MBR when it formats a partition. It also installs a very small file called boot0 in the MBR sector. chain0 is boot0 compiled for DOS. Disk Utility also installs a file named boot1h at the beginning of the OSX partition and then installs a file called boot after that. "boot" has the true bootloader. BIOS reads MBR and boot0. A missing/corrupt boot0 results in the black screen/blinking cursor problem (I believe). boot0 looks for boot1h on the partition. If it fails to find it, you get the b0 error because the partition is not set active so boot0 is looking in the wrong place. When boot1h gets loaded, it looks for boot. Failing to find that results in "hfs+ partition error". An actual problem with boot itself can produce the missing "com.apple.Boot.plist" file error. Depending upon where the problem lies, fixing MBR may or may not help. FIXMBR in Windows fixes MBR but generally removes boot0 so OSX may not boot without the DVD. "fdisk -u" in OSX fixes MBR but removes the pointer to the Windows bootloader (NTLDR). If fixing MBR doesn't repair the problem, then the best bet is to erase your OSX partition using an older Disk Utility and then reinstall OSX or restore from a backup. New Disk Utilities are not all that compatible with the old Darwin boot/bootloader files and may screw them up. Erasing an OSX partition with an older Disk Utility will fix MBR, and install the boot0/boot1h/boot files. Then you can reinstall OSX fresh or from a backup. Likewise, partitioning a whole disk using Disk Utilties has problems I just don't want to type about. Suffice it to say that partitioning is best done using a Windows/Linux partition utility. If you only install OSX on the whole hard drive, formatting the drive as FAT32 establishes the correct MBR. Use a Windows/Linux utility and not Windows itself because Windows won't format FAT32 over 32 GB. Then, in Disk Utility, select the primary disk partition displayed below the hard disk icon and format that partition as MacOS Extended Journaled. That primary partition is the whole disk minus MBR and overhead. Link to comment https://www.insanelymac.com/forum/topic/34699-how-to-uninstall-macos-x86-from-dual-boot-with-xp/#findComment-246518 Share on other sites More sharing options...
MadDoggyca Posted December 3, 2006 Share Posted December 3, 2006 I get all the hype of MacOS on PC and now I want to uninstall it from dual booting. qote the above means he wants to totaly remove all of OSX fomr his pc Link to comment https://www.insanelymac.com/forum/topic/34699-how-to-uninstall-macos-x86-from-dual-boot-with-xp/#findComment-246879 Share on other sites More sharing options...
DiaboliK Posted December 3, 2006 Share Posted December 3, 2006 super simple. open windows. any flavor, start button> run> diskmgmt.msc now your in disk management. find your windows partition. right click on it. select set partition active. now find your mac partition. it should say healthy but unknown. now right click on that then format. viola! id say do a quick format to save time. then get a better program and format it again just to make sure Link to comment https://www.insanelymac.com/forum/topic/34699-how-to-uninstall-macos-x86-from-dual-boot-with-xp/#findComment-247286 Share on other sites More sharing options...
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