Re: white screen when booting 9.1 on quadra 700

> On Oct 26, 2020, at 11:06 AM, [email protected] wrote:
> 
> hello,
> 
> i have a macintosh quadra 700, and have been attempting to install netbsd on it. i have tried both the 9.1 kernel and a nightly head build.
> 
> when i boot the installation kernel from the booter application, i am shown a white screen, and my computer proceeds to do absolutely nothing no matter how long i wait. if i press the interrupt button, i am dropped into the debugger, but cannot interact with it. the same is true both over graphical and serial console.
> 
> across multiple boot attempts, if i press the interrupt button, the debugger always seems to stop in the exact same place, varying only when i change the kernel version. for the released 9.1 kernel, it is as follows:
> 
>    [   1.0000000] Panic switch: PC is 0x1c32c.                                  
>    Stopped in pid 0.1 (system) at  29eb8:  unlk    a6                           
>    db>            
> 
> does anyone have advice for troubleshooting this issue?

six months later, i have resolved this.

the issue was very simple: i didn't rtfm. i had been attempting to boot from a fully loaded mac os install with extensions enabled, and i just now re-read the instructions and tried with extensions off.

now, i have been able to boot the installer and install a working system.