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printf Error on High Sierra Install

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i5-3750K
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RX 580
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  2. Performa
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Hi all,

So I'm upgrading from 10.11 to High Sierra, and I've run into a problem. I made it to the installer screen with only minimal issues (I needed to use the MATS table-dropping fix), but once my system rebooted after the install screen completed, I now can't start up. When I select the "Boot macOS Install Prebooter from Preboot" option, I end up with the printf error. However, when I try to boot into "Boot macOS from [my primary drive]", I get a kernel panic ("Please go to https://panic.apple.com to report this panic"). Booting into the recovery partition works, and the recovery screens I see look like High Sierra's visual style (and when I try to choose a startup disk, my primary disk is listed as having 10.13 installed).

I've tried the OsxAptiov2 fixes listed here (and tried to calculate a slide value for the "slide=0" command, but couldn't get a valid slide value since I'm not getting an "error allocating x pages" error). Searching the forums hasn't helped either. Anyone have any ideas? I'm currently running Clover 4392
 

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Joined
Apr 1, 2012
Messages
16
Motherboard
GA-Z68XP-UD3 UEFI U1j
CPU
i5-3750K
Graphics
RX 580
Mac
  1. MacBook
Classic Mac
  1. LC
  2. Performa
  3. PowerBook
Mobile Phone
  1. iOS
I've now tried installing and reinstalling High Sierra a number of times. Most recently, I tried using tonymacx86's custom Clover build to install OsxAptioFix3Drv-64.efi, but I'm still getting the same error. Attempting to boot into the Recovery partition gets me the "kextd stall AppleACPICPU" error. Anyone have any ideas?
 
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