[Coco] Need help using ram drive as default drive

[Robert Gault]

Vanderberg Family wrote:

> I boot to NitOS9 from /d0
> Format /r0 and then backup /d1 to /r0 from a prebuilt ram disk image with CMDS, SYS, sysgo, startup, etc.
> chx /r0/cmds
>

Ed,

OK, now that makes sense. It also means that any reboot problems which then 
occur without turning off the system are the result of the wrong modules in the 
OS9Boot file on /r0 (but see below). Any problems with programs going to /d0 for 
information are the result of those programs being hard coded for /d0.

You must set up the /r0 disk so that the boot module on track 34 reads from /r0 
not /d0. You should make the /dd descriptor module on /r0 be identical to the 
descriptor for /r0 except with an internal name of /dd. Modules Init and Sysgo 
can stay as they are as long as they refer to /dd and /dd is now /r0.

There is one other problem which you seem to have solved but not stated how. If 
you were to boot from /d0 and then backup /d1 to /r0, any reboot would have the 
/d0 data in memory and you would not be making use of /r0 for rebooting.

There are two ways around that problem. You could use a utility to change the 
Boot module in memory so that it accessed /r0. You could start a RAM disk from 
Basic and boot from the RAM disk rather than /d0.

The above can give you clues for solving the problems yourself. The only way to 
get more exact answers would be to make available your /r0 disk so others could 
test it.