Unetwork Posted July 20, 2014 Share Posted July 20, 2014 Hi everyone I have in 4 HDD Windows 7, ML and on another HDD Mavericks installed and must say all was running just greatToday wanted to start Mavericks and I got a panic mac os version not yet setSo wanted to check the disk in Mountain lion which was working fine as well and the same mac os version not yet set came up.Just wanted at the end to check the diskutil from the DVD and again even the DVD is showing mac os version not yet set I checked the bios but all is just fine there and no changes were made.I am using a Asus P5Q Pro with Nvidea G210 4GB DDR Did not make any hardware changes...tried to boor with PCIRootUID=0 and also with -s Nothing..Any ideas? Thanks in advance Link to comment https://www.insanelymac.com/forum/topic/299655-help-mavericks-wont-start-mac-os-version-not-yet-set/ Share on other sites More sharing options...
Mackinhack68 Posted July 20, 2014 Share Posted July 20, 2014 Sounds like a curroption in system files. Format the Mavericks HDD, and re-install OS X again. Link to comment https://www.insanelymac.com/forum/topic/299655-help-mavericks-wont-start-mac-os-version-not-yet-set/#findComment-2042348 Share on other sites More sharing options...
Unetwork Posted July 21, 2014 Author Share Posted July 21, 2014 Thanks for the reply but I just did that and at the install the same (as I wrote above) messages panic comes up A format is the last resort just wonder why and Mavericks and Mountain lion suddenly does not work anymoreIts a original Mavericks DVD and installed Mavericks over 4 months ago without any problems Link to comment https://www.insanelymac.com/forum/topic/299655-help-mavericks-wont-start-mac-os-version-not-yet-set/#findComment-2042485 Share on other sites More sharing options...
Unetwork Posted July 22, 2014 Author Share Posted July 22, 2014 ok no one can give me any idea as with re-installing Mavericks with all the right flags the panic also comes..I tried to reset the bios, deleted from the bios all user data but can't get into the Mavericks setup... Link to comment https://www.insanelymac.com/forum/topic/299655-help-mavericks-wont-start-mac-os-version-not-yet-set/#findComment-2042937 Share on other sites More sharing options...
Unetwork Posted July 22, 2014 Author Share Posted July 22, 2014 UPDATE - SOLVED For any one that does have the same problem and panic here is the solution, just did it and all my OS again are working with no problem at all The problem is caused by the bios of your PC this when you use dual boot, in my case windows 7 64, Mavericks and Mountain lion each operating systems on a different Hard drive. Windows goes and stays inside the memory of you motherboard So make the bios again clean (in my case a patched bios) REMOVE THE BATTERY OF YOUR MOTHERBOARD (unplug the power cord) Hit the power switch Now put the battery back inside Do a new setup inside the bios like AHCI instead of IDE reboot your hackintosh and you will see all is ok again Link to comment https://www.insanelymac.com/forum/topic/299655-help-mavericks-wont-start-mac-os-version-not-yet-set/#findComment-2042961 Share on other sites More sharing options...
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