Hi. I'm attempting to install OS X Mavericks on a custom-built system with the following hardware:
I connected the display to the VGA output on the graphics card. I updated the BIOS using the most recent version on the MSI support page. I chose optimized defaults and made sure the USB stick would boot first. I booted from the USB (prepared as a Mavericks installer with Unibeast) and got to the Apple logo with the spinning circle. After that, it went to a light grey screen, then a dark grey screen, then stuck there.
I read about the "grey screen of death" that people have encountered, and discovered that there was no evidence that Galaxy video cards worked at all with Mavericks. I removed the card and tried to start again with the display connected to the integrated VGA output on the motherboard, but now it gets to the Apple logo with the spinning circle and freezes before even getting to the grey screens. I tried as many configurations of boot flags as I could find on tonymacx86, but nothing seemed to help.
I can't get to the installer and I'm not sure what to do. I would appreciate some help. I would have tried this initially with Mountain Lion, but the Mountain Lion installer is no longer available through the App Store and I don't know how to get it otherwise. I'm running Mountain Lion on my current MacBook, but I can't figure out how to create a Mountain Lion installer USB without access to the App Store installer.
submitted by saintandre
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What is missing? Please comment to help! ...[source]
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