Laser1092 Posted January 8, 2009 Share Posted January 8, 2009 So, I recently got windows 7 and mac osx 10.5.1 dual booted on my dell. Everything works flawlessly (except upgrading) but I cant seem to upgrade or reinstall windows without rendering my OSX partition unusable. Im running windows 7 build 6801 and I want to upgrade to the full beta that comes out tomorrow, but when I tried to upgrade to build 6956 before is screwed up my partitions and mac would no longer boot. Windows would load straight away (obviously because chameleon was overwritten by Windows). How can I prevent Windows from over writing Chameleon, or how can I reenable OSX after Windows is upgraded? Thanks! Link to comment https://www.insanelymac.com/forum/topic/145582-upgrade-windows-in-a-dual-boot-config-with-osx/ Share on other sites More sharing options...
souto Posted January 11, 2009 Share Posted January 11, 2009 Having the same issue here.... Installed Windows 7 and now I can't boot into OSX. Tried to use bcdedit, no success... Link to comment https://www.insanelymac.com/forum/topic/145582-upgrade-windows-in-a-dual-boot-config-with-osx/#findComment-1036766 Share on other sites More sharing options...
nebulOSX Posted January 12, 2009 Share Posted January 12, 2009 I am roughly in the same boat. I installed OS X with the boot132 method, so now have my bootloader on a seperate partition. I made a new partition for 7 as I wanted to give it a spin.. anyway, after install it boots up, but no OS X, boot OS X with boot132 disc, activate bootloader partition and install chameleon again, and I now am given the option to boot 7 and OS X, but when 7 boots it says its missing a necessary file to boot and can't. This is on a GUID partition. Someone give me a guide to make it work?! Please?! Link to comment https://www.insanelymac.com/forum/topic/145582-upgrade-windows-in-a-dual-boot-config-with-osx/#findComment-1038487 Share on other sites More sharing options...
Laser1092 Posted January 13, 2009 Author Share Posted January 13, 2009 Ive never had success using GUID to boot windows... I'd try changing it to MBR Link to comment https://www.insanelymac.com/forum/topic/145582-upgrade-windows-in-a-dual-boot-config-with-osx/#findComment-1039284 Share on other sites More sharing options...
Aranius Posted January 13, 2009 Share Posted January 13, 2009 To boot Windows on a GPTdrive without syncing GPT to MBR you need to have one of the newer Mainboards which support EFI to boot Windows, thats not always the case and the only problem i heard of with this... To Windows7... anybody succeded with the 7000er Build? I want to do that in the next few days... Link to comment https://www.insanelymac.com/forum/topic/145582-upgrade-windows-in-a-dual-boot-config-with-osx/#findComment-1039414 Share on other sites More sharing options...
Monkey_@@ Posted January 13, 2009 Share Posted January 13, 2009 I really don't have experience with Win 7 but when restoring my Vista 64-bit with dual boot and GPT disk I had success with the following method: (maybe nebulOSX could try that)! 1. Install Windows and have it to boot nice; 2. Boot from boot-132 disc 3. Flag OS X (or bootloader) partition 4. reinstall Chamelion 5. boot OS X and make sure it works 6. Flag Windows partion 7. Try to boot windows and get missing file error 8. Boot from Windows DVD and choose repair installation (I don't know if there is this option in Win7) 9. Boot fromm boot-132 disc 10. Flag OS X (or bootloader) partition 11. dual-boot should work now. Please let me know if this helps... Link to comment https://www.insanelymac.com/forum/topic/145582-upgrade-windows-in-a-dual-boot-config-with-osx/#findComment-1039443 Share on other sites More sharing options...
nebulOSX Posted January 13, 2009 Share Posted January 13, 2009 thanks for that, but i think i am just gonna go for an MBR install, as that way i can boot xp as well.. thanks anyway! Link to comment https://www.insanelymac.com/forum/topic/145582-upgrade-windows-in-a-dual-boot-config-with-osx/#findComment-1039591 Share on other sites More sharing options...
mattrb Posted January 13, 2009 Share Posted January 13, 2009 thanks for that, but i think i am just gonna go for an MBR install, as that way i can boot xp as well.. thanks anyway! nebulOSX, I have done this method described above and it is very easy and painless. MBR is {censored} and I really dont recommend it.Use XP 64 to goto GUID or use another hard drive and dualboot that way. Link to comment https://www.insanelymac.com/forum/topic/145582-upgrade-windows-in-a-dual-boot-config-with-osx/#findComment-1039769 Share on other sites More sharing options...
Laser1092 Posted January 13, 2009 Author Share Posted January 13, 2009 I really don't have experience with Win 7 but when restoring my Vista 64-bit with dual boot and GPT disk I had success with the following method: (maybe nebulOSX could try that)! 1. Install Windows and have it to boot nice; 2. Boot from boot-132 disc 3. Flag OS X (or bootloader) partition 4. reinstall Chamelion 5. boot OS X and make sure it works 6. Flag Windows partion 7. Try to boot windows and get missing file error 8. Boot from Windows DVD and choose repair installation (I don't know if there is this option in Win7) 9. Boot fromm boot-132 disc 10. Flag OS X (or bootloader) partition 11. dual-boot should work now. Please let me know if this helps... it sounds like it might work... but, not to sound like an {censored} or anything, but I need to verify that whatever method I may use works perfectly... I have really important data on this computer that I cant lose, and if I lose "bootability" to either OS I might be royally screwed If anyone has a surefire way, please let me know... I know one guy on the IRC helped me a while back, and it worked flawlessly, but I dont remember what his name was. Link to comment https://www.insanelymac.com/forum/topic/145582-upgrade-windows-in-a-dual-boot-config-with-osx/#findComment-1040020 Share on other sites More sharing options...
nebulOSX Posted January 14, 2009 Share Posted January 14, 2009 Ok! thanks, will give it a shot now and post back with results... Got nothing important on my Hac, haven't got anything to lose! Link to comment https://www.insanelymac.com/forum/topic/145582-upgrade-windows-in-a-dual-boot-config-with-osx/#findComment-1040721 Share on other sites More sharing options...
nebulOSX Posted January 14, 2009 Share Posted January 14, 2009 Yes! It worked! after doing the repair with the Windows 7 disc I got the vista boot screen instead of the swirly new one, other than that.. All perfect! thanks. Link to comment https://www.insanelymac.com/forum/topic/145582-upgrade-windows-in-a-dual-boot-config-with-osx/#findComment-1040780 Share on other sites More sharing options...
DocShadow Posted January 17, 2009 Share Posted January 17, 2009 I have two working drives ... one for Mac OS and the other for Windows. The Windows drive had XP on it; the Mac drive has 10.5.6. The other day I wiped the Windows drive using Mac DiskUtility and formated the drive as GUID with NTFS. In Windows 7 the drive shows as with a 200 MB EFI partition and the NTFS partition. Installed Windows 7 succcessfully but during the process it deleted the Mac OS boot files (boot0 and boot1) and changed the active partition. I used fdisk reset the active partition and to copy these files back to the root of the Mac OS drive. Both operating systems now work. Lesson learned ... disconnect the Mac drive before installing Windows 7. Now working on a boot manager so I don't need F8. Link to comment https://www.insanelymac.com/forum/topic/145582-upgrade-windows-in-a-dual-boot-config-with-osx/#findComment-1044916 Share on other sites More sharing options...
mattswell Posted January 17, 2009 Share Posted January 17, 2009 I really don't have experience with Win 7 but when restoring my Vista 64-bit with dual boot and GPT disk I had success with the following method: (maybe nebulOSX could try that)! 1. Install Windows and have it to boot nice; 2. Boot from boot-132 disc 3. Flag OS X (or bootloader) partition 4. reinstall Chamelion 5. boot OS X and make sure it works 6. Flag Windows partion 7. Try to boot windows and get missing file error 8. Boot from Windows DVD and choose repair installation (I don't know if there is this option in Win7) 9. Boot fromm boot-132 disc 10. Flag OS X (or bootloader) partition 11. dual-boot should work now. Please let me know if this helps... This is the exact method I use to get Vista working. I will be trying it with Windows 7 once my time machine backup finishes... edit: I just finished replacing my Vista partition with Windows 7. I pretty much followed the steps above, except when you reapply boot-132 and attempt to boot into Vista from the bootloader, it does NOT come back with an error, it just boots fine. So far everything is working perfectly. I've got Win7 and OSX 10.5.6 dualbooting on my sweet sweet hackintosh. Link to comment https://www.insanelymac.com/forum/topic/145582-upgrade-windows-in-a-dual-boot-config-with-osx/#findComment-1045398 Share on other sites More sharing options...
keypox Posted January 21, 2009 Share Posted January 21, 2009 This is the exact method I use to get Vista working. I will be trying it with Windows 7 once my time machine backup finishes... edit: I just finished replacing my Vista partition with Windows 7. I pretty much followed the steps above, except when you reapply boot-132 and attempt to boot into Vista from the bootloader, it does NOT come back with an error, it just boots fine. So far everything is working perfectly. I've got Win7 and OSX 10.5.6 dualbooting on my sweet sweet hackintosh. ON part 6, which partition do you mark active since windows 7 creates 2 partitions??? I marked the first one 200mb and repair worked. Booted with boot 132 marked partition 3 as acitve with these comands in terminal fdisk -e /dev/rdisk0 Specifies the disc that you have win 7and OS X installed to flag 3 And that worked i now have dual boot going with windows 7 and osx 1. Install Windows and have it to boot nice; 2. Boot from boot-132 disc 3. Flag OS X (or bootloader) partition 4. reinstall Chamelion 5. boot OS X and make sure it works 6. Flag Windows partion 7. Try to boot windows and get missing file error 8. Boot from Windows DVD and choose repair installation (I don't know if there is this option in Win7) 9. Boot fromm boot-132 disc 10. Flag OS X (or bootloader) partition 11. dual-boot should work now. Link to comment https://www.insanelymac.com/forum/topic/145582-upgrade-windows-in-a-dual-boot-config-with-osx/#findComment-1049692 Share on other sites More sharing options...
FreeHack Posted October 22, 2009 Share Posted October 22, 2009 nebulOSX, I have done this method described above and it is very easy and painless. MBR is {censored} and I really dont recommend it.Use XP 64 to goto GUID or use another hard drive and dualboot that way. I don't know much about this. What is boot disk 123? And can I do this using darwin bootloader? I used Ideneb v.1.3 10.5.5 Link to comment https://www.insanelymac.com/forum/topic/145582-upgrade-windows-in-a-dual-boot-config-with-osx/#findComment-1306510 Share on other sites More sharing options...
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