Getting closer with MBP5,2 (mid 2009, non-metal, legacy USB).Installation proceeded to the end. MBP5,2 which is spoofed as MBP11,5 according to OCLP build protocol.
Could not boot the installed Monterey quite to the login/setup screen. Instead showing the spinning wheel for some seconds, then black screen for a few seconds, repeatedly. It also showed the trackpad pointer which could even be moved during the black screen phases.
The USB-SATA disk interface shows activity all the time.
When setting verbose mode in OCLP, I first saw what is in attachment 1 for about a minute, then what is in attachment 2 without end; don't know if this is related to the intermitting spinning wheel seen in non-verbose mode.
MBP5,2 has dGPU, in use should be the Nvidia Geforce 9600M GT.
- Observation during installing: when rebooting, OCLP didn't automatically pick up macos installer or final volume, resp. (like I've seen for BS). I pointed it manually to the right volume on each reboot.
- Finally, unrelated, I've enabled Firewire booting in the OCLP settings, but OCLP boot picker doesn't seem to see the connected Catalina drive (which is visible, but not correctly bootable, in Apple boot selector).
I'm now using the OCLP 0.1.7 status from about 1hr ago.
Very happy that my old MBP5,2 already gets that far on day three / page 12 of the Monterey era! Thanks!
I've made my account auto-login, and it boots to my desktop. Slow of course, sometimes freezing, but mail, Safari etc. do work for a while. Because of the freezing, I write this from BS.
I didn't attempt a clean installation, on the contrary...
- starting with an existing 11.5b2 installation which contains all user data, settings etc by migration from Catalina. It does contain root volume patches for graphics acceleration
- cloned it (CCC full clone) to another SSD on USB
- installed 12.0b over it with OCLP 0.1.7; it boots to the intermitting spinning wheel instead of the login screen
- setting auto-login for my existing account makes it boot to my desktop.
Have a look at the Monterey Discord discussion. Thanks to jackluke for many hints.
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