-----Original Message----- From: Al Kossow <aek(a)spies.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Saturday, February 12, 2000 2:22 AM Subject: Re: RX01 Bootstrap Loader I have been able to boot XXDP on the PDP-11/20, no problems... but.. (here is where I have a problem) I know the PDP-11/20 is booting RT-11v3.0B as it loads for about 20 seconds.... problem is I don't get anything on the teletype. When booted, RT11 is waiting for keyboard input but does not read mine. When I use an M9312 (ver bad fit) I can type, when I boot XXDP it boots fine as well and I can type. I am using a KL11 (yuck) which uses one vector for both send/receive... at least thats what I thought I read. I just gave Jerome Fine RT-11v3.0B distribution to archive so I don't have the disks handy to find out if there was a special driver to support the KL11 teletype interface. I *really* don't want to hook up mag tape or RK05s eight now so... does someone know if there is a special driver for the KL11? BTW: RT11 V4 does not boot at all.. well, I hear the RX01 reading a bit... then it dies. KL11 setup: addr: 777560 , vector: 60. john PDP-8 and other rare mini computers http://www.pdp8.com