Other PDP11 simulators

Gordon JC Pearce gordon at gjcp.net
Sat Oct 2 17:46:49 CDT 2004


Ron Hudson wrote:

>> and simh would run in single-user mode.  This would, of course, be silly.
> 
> 
> why silly? if it would work.
> 

Because none of the userspace daemons would be running.  Saying 
"init=/bin/sh" is a great way to get the root filesystem and a command 
prompt and *nothing* else - the init scripts are never run, so no other 
filesystems are mounted, no kernel modules are loaded, nothing like 
that.  The kernel loads, brings the console up to a known state, and 
then forks off to the shell.  Normally, of course, it would fork init, 
which would then read inittab and then the startup scripts.

Gordon.



More information about the cctalk mailing list