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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Yes, rt11dat and rt11run looks like RL01 “disks”, and rtv53_rl.dsk is an RL02 (and IIRC the distribution disk).</p>
<p class="MsoNormal">Maybe you can add the following command after SET CPU and before the ATTACH RL statements.</p>
<p class="MsoNormal">SET RL0 RL01</p>
<p class="MsoNormal">SET RL1 RL02</p>
<p class="MsoNormal">SET RL2 RL01</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Then ATTACH them. But if I am right, you will need two empty RL02 disks, because when you boot<br>
from the RL1: you probably end up in the installation procedure which want to create a backup disk<br>
and a “working copy” disk (and store the distribution disk in a safe place <span style="font-family:"Segoe UI Emoji",sans-serif">
😊</span></p>
<p class="MsoNormal">As said, from DBIT you can get an empty RL02 image.</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best to make (in Windows / Linux) a copy of the 3 files, and then proceed.</p>
<p class="MsoNormal">If the rt11dat,dsk is indeed empty, it will not hurt to try</p>
<p class="MsoNormal">.INIT /BADBLOCK RL2:</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="border:none;padding:0cm"><b>Van: </b><a href="mailto:kjhall55@gmail.com">Ken Hall</a><br>
<b>Verzonden: </b>woensdag 12 februari 2020 21:09<br>
<b>Aan: </b><a href="mailto:SimH@trailing-edge.com">simh@trailing-edge.com</a><br>
<b>Onderwerp: </b>Re: [Simh] Initializing disks (triggered by the "Something Strange with RK05" chain</p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">Going by the size of the disk image files, I believe there’s a mix. These are downloaded disk images I pulled (literally) years ago, DL0 seems to be RL01, while DL1 is RL02:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">5235200 Dec 21 2011 rt11dat.dsk<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">5235200 Feb 12 12:18 rt11run.dsk<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">10475520 May 10 2006 rtv53_rl.dsk<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The one I’m trying to initialize is rt11dat.dsk, it’s “empty”. The other two read/access just fine, but I’ve never tried to initialize them<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Startup cmd file is:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">SET CPU 1M<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">ATTACH RL0 rt11run.dsk<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">ATTACH RL1 rtv53_rl.dsk<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">ATTACH RL2 rt11dat.dsk<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">SET RL2 BADBLOCK<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">BOOT RL0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I think that “BADBLOCK” option came from some suggestion way back, like I said, it’s been a long time since I touched this.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Simh <simh-bounces@trailing-edge.com>
<b>On Behalf Of </b>Henk Gooijen<br>
<b>Sent:</b> Wednesday, February 12, 2020 2:27 PM<br>
<b>To:</b> simh@trailing-edge.com<br>
<b>Subject:</b> Re: [Simh] Initializing disks (triggered by the "Something Strange with RK05" chain<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal">See below …<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>Van: </b><a href="mailto:kjhall55@gmail.com">Ken Hall</a><br>
<b>Verzonden: </b>woensdag 12 februari 2020 18:30<br>
<b>Aan: </b><a href="mailto:simh@trailing-edge.com">simh@trailing-edge.com</a><br>
<b>Onderwerp: </b>[Simh] Initializing disks (triggered by the "Something Strange with RK05" chain<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">I’ve played with RT11 on and off over the years, but the one thing I’ve never been able to do is properly initialize an empty disk. If I create a DL2: for example, and try to run initialize on it, I get back:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">.dir dl2:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">?DIR-F-Error reading directory<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">.init dl2:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">DL2:/Initialize; Are you sure? YES<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">?DUP-F-Size function failed<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">This seems similar to the issues Henk Gooijen has been having with RK05’s, and it’s been so long since I’ve dealt with the real hardware I don’t recall exactly how this is supposed to work, but it seems to me it should
just “work”.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Has anyone found a solution to this?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I can check that tomorrow. Maybe that is the reason you can download<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">an empty but initialized RL02 image (zipped) from DBIT.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">If RT11 cannot figure out the size (5 MB or 10 MB / RL01 or RL02), maybe<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">the command (in SIMH) .SET RL0 RL02 helps. You specify that RL0 is an<br>
RL02. Likewise, you can say .SET RL0 RL01. On a real PDP-11 with RL drives<br>
the system will recognize what type RL01 or RL02 is connected/loaded.<br>
You can have a mix of RL01 and RL02 drives on one RL11 controller.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The .SET RLx RL01 (or RL02) command is not of RT11, but of SIMH. Give it a try
</span><span lang="EN-US" style="font-family:"Segoe UI Emoji",sans-serif">😊</span><span lang="EN-US">
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">For the write protect command for the RK drives, this is probably also a<br>
SIMH command. .SET RK0 WRITEENABLE *<b>is</b>* in SIMH (as is .SET RK0 LOCKED).<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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