SMUJeremy Posted February 15, 2010 Share Posted February 15, 2010 Here is my setup: 3 ACHI Sata Drives Port 0 - 750GB - Windows 7 Port 1 - 250GB - OSX Port 2 - 250GB - Backup/No OS I have gave up trying to get the Windows 7 bootloader to load Darwin so I am attempting to use the OSX drive first and use Darwin to load either OSX or Win 7 but when I boot from the OSX disk when the Win 7 disk is plugged up I get EBIOS read error: Device timeout Block xxx Sector 0. If I only have the OSX disk installed then it will boot just fine. After about 5 minutes of timeouts, then it goes into Darwin and lets me choose which disk to boot into. I mostly installed using TonyOSX86 ... have PC EFI 10.6 installed and just tried to upgrade to the latest Chameleon - no change. Edit: I would prefer to use my windows drive to give me the option rather than the OSX drive. Link to comment https://www.insanelymac.com/forum/topic/210897-dual-boot-7-osx-device-timeout/ Share on other sites More sharing options...
SMUJeremy Posted February 16, 2010 Author Share Posted February 16, 2010 I think I have it figured out now. I played around with my hard disks. My 250gb drive that is a backup drive must be on it's way out because when it is not present I have no issues getting Chameleon to pull up instantly and then select which drive to go into. Link to comment https://www.insanelymac.com/forum/topic/210897-dual-boot-7-osx-device-timeout/#findComment-1411638 Share on other sites More sharing options...
HYDER THE DUDE Posted February 17, 2010 Share Posted February 17, 2010 dude....i had problems trying to dual boot it at first my copy of mac osx started working wen i installed apple netkas from SMBIOS menu after mac osx is installed..insert windows 7 cd and boot from it,give repair ur computer and select use tools to repair my computer and select STARTUP REPAIR and then after its completed,u should boot into windows 7(TAKE OUT UR WINDOWS 7 CD)now download easyBCD 1.7.2 after that go to the tab ADD/REMOVE ENTRIES and select mac and in the drop down list select GENERIC x86 PC and give a entry name,it should appear in you windows 7 bootloader reboot ur system u should see two entries windows 7 EDITION NAME(RECOVERED) NST MAC OSX(or whatever u named it) select NST MAC OSX and it should take u to Chameleon,let the load bar finish or press any key for boot options and den boot how u want to into mac osx Link to comment https://www.insanelymac.com/forum/topic/210897-dual-boot-7-osx-device-timeout/#findComment-1411750 Share on other sites More sharing options...
SMUJeremy Posted February 17, 2010 Author Share Posted February 17, 2010 None of the EasyBCD things work for me. If I try to use MBR I get a Chain Boot Error and if I try EFI I get the Grub prompt. dude....i had problems trying to dual boot it at firstmy copy of mac osx started working wen i installed apple netkas from SMBIOS menu after mac osx is installed..insert windows 7 cd and boot from it,give repair ur computer and select use tools to repair my computer and select STARTUP REPAIR and then after its completed,u should boot into windows 7(TAKE OUT UR WINDOWS 7 CD)now download easyBCD 1.7.2 after that go to the tab ADD/REMOVE ENTRIES and select mac and in the drop down list select GENERIC x86 PC and give a entry name,it should appear in you windows 7 bootloader reboot ur system u should see two entries windows 7 EDITION NAME(RECOVERED) NST MAC OSX(or whatever u named it) select NST MAC OSX and it should take u to Chameleon,let the load bar finish or press any key for boot options and den boot how u want to into mac osx Link to comment https://www.insanelymac.com/forum/topic/210897-dual-boot-7-osx-device-timeout/#findComment-1411752 Share on other sites More sharing options...
SMUJeremy Posted February 17, 2010 Author Share Posted February 17, 2010 This fixed it for me: http://www.insanelymac.com/forum/index.php...st&p=957655 I used that chain0 file and renamed it nst_mac.mbr and replaced the EasyBCD file. Link to comment https://www.insanelymac.com/forum/topic/210897-dual-boot-7-osx-device-timeout/#findComment-1411764 Share on other sites More sharing options...
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