Delly

No joy on the install. Here's a recap: - Installed in safe mode(only way I get the system to boot the USB drive) with the extras provided by OP. - Chameleon bootloader was not installed on the hard drive, so booted off the install USB drive and selected the hard drive with the ML installation. At this point I get an EBIOS read error/device timeout. Tried booting the ML installation in safe mode as well, no luck there either. - PC BIOS was updated from A12 to A14 and I disconnected all unnecessary pieces of hardware(extra drives, wireless PCIe card), and repaired permissions on the ML drive. At this point, only the primary hard drive is connected to the SATA 0 port. I still get the same error.

Booting with -x got me to the installer. Will update after the install finishes to let everyone know how it turned out.

I appear to be having the same issue as TequilaKez. I have an i5 Optiplex 9010 minitower on BIOS version A12. Booting with -v doesn't appear to show any issues or hang-ups. It boots just fine to a gray screen and then I get the spinning pinwheel(everything at this point appears to be shown at the native resolution of my display, 1920 x 1200). I know the install app is supposed to start at this point, but it just gets stuck here and the pinwheel keeps spinning. I have used a 10.8.4 image with myHack. There is no extra hardware on the machine except a Dell wireless 1530 PCIe card(Broadcom chipset based); disabling the PCIe slot makes no difference. All the usual settings appear to be correct in BIOS(AHCI, C states enabled, legacy boot, etc.).