akil3sh Posted October 14, 2016 Share Posted October 14, 2016 I'm trying to install 10.12 on a Sony Vaio laptop that is already running OS X Mavericks and previously Yosemite along with Win7 on MBR. I've made a USB installer and Clover Bootloader on Mavericks and was once successfully able to get to the install screen, but it refused to install since I'm on MBR and not GPT. I used a partition assistant software and converted MBR to GPT and now it won't boot up. I'm attaching verbose screen pictures here for a better info. Tried all possible args, but no luck. Tried converting got back to MBR and still doesn't work. EDIT - specs Intel i3 2370M 6GB RAM Intel HD3000 graphics onboard 320GB SATA HDD Quote Link to comment Share on other sites More sharing options...
kosakgroove Posted November 1, 2016 Share Posted November 1, 2016 Recover your data and format the whole disk with Mac OS X Disk Utility in GPT partition table (GUID) With Clover bootloader you can have a GPT partitioned disk with Mac OS X and Windows in UEfi mode (even if your PC is legacy-only MBR) You just have to install Clover in the ESP partition and update its boot sector. You might be struggling also with USB problems in your DSDT that dont let you boot the installer. Try and do an upgrade from Mavericks to Sierra, it's what worked for me, until I fixed the code in my DSDT Quote Link to comment Share on other sites More sharing options...
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