[comp.sys.mac] Ramdisk problems

jeffb@eleazar.dartmouth.edu (Jeffrey C. Buchsbaum) (03/12/89)

   A weird problem.  I want to use my National Semiconductor RAM board as a ram
disk, and it comes with a CDEV by Paul Mercer, of SCSI tools fame, for this.
I load the cdev into the system folder, set it correctly, even wait 15 seconds
in the control panel, close the control panel, shutdown, and reboot.
  No ramdisk.
  Then I load a floppy (Utilities disk 1 of Sys 6.0.2...)and reboot.  I get the
ramdisk to come up, but the floppy lacks the CDEV entirely.  Weird.
I then copy the hard disk system to the ramdisk, the one that would not boot
the ram disk, and set the ramdisk as the startup volume with the Startup
CDEV that is standard system software.  I reboot.
  I get the ram disk, and it flies.  Note, lots of inits and cdevs are in place,
but they are in place in all runs (the system folder is a constant). The system,
with inits..., comes up off the startup ramdisk, incredibly fast, but I have not
changed anything from the system relative to the hard disk copy.
   What gives, and what should I do. I was careful to
keep the inits that did load off the ramdisk the same for the hard disk. The
exact same system folder on the hd was not able to boot the ramdisk, but the
ramdisk booted itself.  I tried rebuilding PRAM and the Desktop, as well as
installing the National CDEV four times.  No dice. I even put 6.0.2 on the hd
and the ramdisk, with the same story.
   National says it might be an EPROM,or I need IIx software (Dove 030 board
is installed), but that fails to explain why the heck the ramdisk can boot
itself with the given system and "non-IIx" cdev.
   I should note in all fairness to National Semiconductor that their support
service is superb, and their board really increases throughput from the user's
point of view.  If only Apple would get that rumored 32 bit system out of the
house.

System:
MacII, 5megs, System 6.0.3 (same thing for 6.0.2 on hard disk though), Two
monitors (256), 40mb Apple internal(startup by default), 80mb Seagate extenal,
LaCie disk software (silverlining), National Semiconductor 8 meg nubus board,
Dove Marathon 030 board (though I deinstalled its software, and still had
problems...).

Any opinions above are just my own, and all standard disclaimers apply.
I do not work for any of the aforementioned companies.

Thanks.
I am at:    jeffrey.buchsbaum@dartmouth.edu
           

AXS101@PSUVM.BITNET (Adrian Sullivan) (03/12/89)

In article <12624@dartvax.Dartmouth.EDU>, jeffb@eleazar.dartmouth.edu (Jeffrey C. Buchsbaum) says:
>(info about his ramdisk not working right deleted)
>System:
>MacII, 5megs, System 6.0.3 (same thing for 6.0.2 on hard disk though), Two
>monitors (256), 40mb Apple internal(startup by default), 80mb Seagate extenal,
>LaCie disk software (silverlining), National Semiconductor 8 meg nubus board,
>Dove Marathon 030 board (though I deinstalled its software, and still had
>problems...).
>
Jeff, if you ever die, my name is Adrian Sullivan, please will your system to
me, i'd greatly appreciate it :-)

                                                               Adrian