Well, I had mixed success on a PDP-11/24. First off, a couple of bugs. In vtserver.c in the code that loads the bootstrap via console odt, the "C" format strings have "%6o". These need to be changed to "%6.6o" to make it work on my 11/24. Otherwise you get leading spaces. Also, the code that sends an entire ODT command in one "write()" fails. I had to change that (and the one that sends the "G" command) into a loop where I wrote just one character, and then read back one character that the 11/24 echoed. Otherwise it just hung. I suspect both of these changes would fix problems on some machines and would not harm any others. So, I got around that, and the standalone loaded. (Hooray) But..... When I tried to use my RK07 as input ( hk(0,0,0) , I got an error: sc=1 cs2=64 er=40 . Upon examination, HKCS1 bit 10 was indeed off (indicating an RK611 controller) whereas the RK07 bit for the drive at +12(octal) was set ON. So, the error itself is not unreasonable. But.... I looked at the code in hk.c, and tried it manually after resetting the machine, and the code should be getting the expected drive error when it first tries to address it as an RK06. That should cause it to switch to thinking it is an RK07, but something is going haywire. And, if I boot a pack, the boot code correctly figures out that it is an RK07 (when I look after it reads the boot block off of a garbage pack, Bit 10 in HKCS1 is indeed on). So, my guess is that the code in hk.c is busted in some way. Are there "2.11BSD for dummies under an emulator" instructions somewhere, so that I could hardwire hk.c to an RK07 temporarily? Or, perhaps can someone point me to the physical memory addresses in hk.c so I could just patch the array to tell it I have 2 RK07's ahead of time, rather than having it attempt to auto-detect the drive type? Haaaaaaaaaaaaalp 8~) Jay Jaeger --- Jay R. Jaeger The Computer Collection cube1(a)home.com visit http://members.home.net/thecomputercollection Received: (from major@localhost) by minnie.cs.adfa.edu.au (8.9.3/8.9.3) id RAA10752 for pups-liszt; Sat, 31 Mar 2001 17:55:53 +1000 (EST) (envelope-from owner-pups(a)minnie.cs.adfa.edu.au) Received: from anchor-post-34.mail.demon.net (anchor-post-34.mail.demon.net [194.217.242.92]) by minnie.cs.adfa.edu.au (8.9.3/8.9.3) with ESMTP id RAA10748 for &lt;pups-digest(a)minnie.cs.adfa.edu.au&gt;; Sat, 31 Mar 2001 17:55:47 +1000 (EST) (envelope-from robin(a)ruffnready.co.uk) Received: from falstaf.demon.co.uk ([158.152.152.109]) by anchor-post-34.mail.demon.net with esmtp (Exim 2.12 #1) id 14jG82-000IE3-0Y; Sat, 31 Mar 2001 08:48:58 +0100 Message-ID: &lt;XPB0TIAQuYx6Ewac(a)ruffnready.co.uk&gt; Date: Sat, 31 Mar 2001 08:47:28 +0100 To: Jay Jaeger &lt;cube1(a)home.com&gt; Cc: pups-digest(a)minnie.cs.adfa.edu.au From: Robin Birch &lt;robin(a)ruffnready.co.uk&gt; Subject: Re: [pups] Re: New Release of VTserver program References: &lt;200103282045.GAA92101(a)minnie.cs.adfa.edu.au&gt; <4.3.2.7.2.20010330212401.00bb29b0@cirithi> In-Reply-To: <4.3.2.7.2.20010330212401.00bb29b0@cirithi> MIME-Version: 1.0 X-Mailer: Turnpike Integrated Version 5.00 U <YSkKJATYm0AxAbv6xwlBrCeVCW> Sender: owner-pups(a)minnie.cs.adfa.edu.au Precedence: bulk In message <4.3.2.7.2.20010330212401.00bb29b0@cirithi>, Jay Jaeger &lt;cube1(a)home.com&gt; writes Jay, I don't know how to do this and I suspect that it would be very difficult (someone PLEASE prove me wrong). But, if you load it into an emulator using another type of disk, say, an RP05 or RM05 that the emulator can support, then you can play with hk.c to your heart's content. Then you can run the code out and test it on the PDP. Cheers Robin ____________________________________________________________________ Robin Birch robin(a)ruffnready.co.uk M1ASU/2E0ARJ/M5ABD Old computers and radios always welcome Received: (from major@localhost) by minnie.cs.adfa.edu.au (8.9.3/8.9.3) id AAA12583 for pups-liszt; Sun, 1 Apr 2001 00:33:07 +1000 (EST) (envelope-from owner-pups(a)minnie.cs.adfa.edu.au) Received: from goby.ciswired.com (IDENT:root@goby.ciswired.com [206.97.67.65]) by minnie.cs.adfa.edu.au (8.9.3/8.9.3) with ESMTP id AAA12579 for &lt;pups-digest(a)minnie.cs.adfa.edu.au&gt;; Sun, 1 Apr 2001 00:33:02 +1000 (EST) (envelope-from greg(a)ciswired.com) Received: from weasel.ciswired.com (root(a)weasel.ciswired.com [206.97.67.73]) by goby.ciswired.com (8.8.7/8.8.7) with ESMTP id JAA12688; Sat, 31 Mar 2001 09:17:21 -0500 Received: from localhost (greg@localhost) by weasel.ciswired.com (8.9.3/8.9.3) with ESMTP id JAA08702; Sat, 31 Mar 2001 09:26:58 -0500 X-Authentication-Warning: weasel.ciswired.com: greg owned process doing -bs Date: Sat, 31 Mar 2001 09:26:58 -0500 (EST) From: "Gregory R. Travis" &lt;greg(a)ciswired.com&gt; To: classiccmp(a)classiccmp.org, pups-digest(a)minnie.cs.adfa.edu.au Subject: [pups] Reformat RA81/82? Message-ID: &lt;Pine.LNX.4.10.10103310916520.8697-100000(a)weasel.ciswired.com&gt; MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-pups(a)minnie.cs.adfa.edu.au Precedence: bulk Can RA81/82 disks be reformatted in the field? If so, is this done through XXDP or is there a way to do it from the disk's serial port? My RA82 occasionally lights its FAULT light and extinguishes its ready light during write operations. The likelyhood of it faulting appears (but I am not certain) to be correlated with a specific region of the disk. About five-ten seconds after the fault, the FAULT indicator turns off and ready comes back on. At no time is an I/O error generated that the application or the operating system (2.11BSD) see so this fault appears to be transient and is resolved by either the drive or the drive/controller together. It "smells" like a data write error that's resolved after a few automatic retries. I'm hoping a low-level reformat could clear it up. Am I wacked out? If there's an XXDP exerciser/formatter available I'd appreciate it if someone could point me there. It's been nearly twenty years since the last time I even tried running XXDP Thanks as always, greg p.s. The RA81 drive on the same controller never gives any trouble (yet). I've tried some more basic things like swapping SDI cables and drive ports but it doesn't make a difference. Gregory Travis Cornerstone Information Systems ATS greg(a)ciswired.com 812 330 4361 ext. 18