"please help" with DemoDisk failure ?

I see that the qnx team seems to monitor this newsgroup; can someone
help with the
Demo disk error I describe below ?
If I view the qnxdemo.dat file I can see the exact text of the error
messages I am seeing
when trying to boot after creating the demodisk with makedisk …

I want to see this work for two reasons; I’m wondering if QNX RTP will
work on my system
if the Demo won’t even boot ! And also it would be very handy at times
to be able to connect
to the Internet with just a floppy ( ie. if during experimentation the
OS’s on the HDD become
unusable until you get to read some saving information on the 'net )

Should I call the 800 number and order a DemoDisk that was created by
QNX ?


my previous append :

Everyone,

Trying to use the DemoDisk I get the following error trying to boot:

OS start failed

sometimes I see

OS cksum failed

OS start failed


These messages are after the QNX bootloader loads to - 100% -


This is seen with 5 different diskettes build from windows & linux on
my machine;
from windows on a machine at work… ( both modem and network versions )
( all the diskettes work fine on the work machine !! ?? )

My home machine is a standard Intel Triton Pentium ( Quantex )
configured as such:

CPU = Pentium 100
Memory = 64 Mb
Modem = 3-Com 56k Sportster
Mouse = serial
Video = ATI Mach-64
2 HDD on primary IDE
4x CD-ROM

I have looked extensively through the FAQs and the QNX web site,
no hits on the ‘start failed’ nor the ‘cksum’ problems

Has anyone else seen this? …Anyone have a clue as to what’s wrong?

  • Jeff -

The demo disk and QRTP are not based on the same technology.
The demo disk is based on QNX4 and QRTP on QNX6. Hence
one could work while the other doesn’t.
“muise” <jeffm15@attglobal.net> wrote in message
news:3AAE30F4.E9D34A0D@attglobal.net

I see that the qnx team seems to monitor this newsgroup; can someone
help with the
Demo disk error I describe below ?
If I view the qnxdemo.dat file I can see the exact text of the error
messages I am seeing
when trying to boot after creating the demodisk with makedisk …

I want to see this work for two reasons; I’m wondering if QNX RTP will
work on my system
if the Demo won’t even boot ! And also it would be very handy at times
to be able to connect
to the Internet with just a floppy ( ie. if during experimentation the
OS’s on the HDD become
unusable until you get to read some saving information on the 'net )

Should I call the 800 number and order a DemoDisk that was created by
QNX ?


my previous append :

Everyone,

Trying to use the DemoDisk I get the following error trying to boot:

OS start failed

sometimes I see

OS cksum failed

OS start failed


These messages are after the QNX bootloader loads to - 100% -


This is seen with 5 different diskettes build from windows & linux on
my machine;
from windows on a machine at work… ( both modem and network versions )
( all the diskettes work fine on the work machine !! ?? )

My home machine is a standard Intel Triton Pentium ( Quantex )
configured as such:

CPU = Pentium 100
Memory = 64 Mb
Modem = 3-Com 56k Sportster
Mouse = serial
Video = ATI Mach-64
2 HDD on primary IDE
4x CD-ROM

I have looked extensively through the FAQs and the QNX web site,
no hits on the ‘start failed’ nor the ‘cksum’ problems

Has anyone else seen this? …Anyone have a clue as to what’s wrong?

  • Jeff -