On Feb 5, 2017, at 8:29 PM, william degnan <billdegnan at gmail.com> wrote: On Sun, Feb 5, 2017 at 4:53 PM, Noel Chiappa <jnc at mercury.lcs.mit.edu> wrote: Noel, Thanks for clarification. Mark and John, Summarizing...The disks in the RL01 directory are 5MB, which is the RL01 disk size I believed, but if they are RL02, why would I not use "RL02" in the simh commands? For example the code Mark wrote with John's changes, should it not be rlo2, not rl01? sim> sho cpu CPU 11/40, idle enabled, autoconfiguration enabled 64KB sim> sh rl RL RL11, address=17774400-17774411, vector=160, 4 units RL0 2621KW, attached to rsxm32.rl01, on line write enabled, RL01 RL1 2621KW, attached to excprv.rl01, on line write enabled, RL01 RL2 2621KW, attached to mcrsrc.rl01, on lineBRU (Backup and restore write enabled, RL01 RL3 2621KW, attached to rlutil.rl01, on line write enabled, RL01 sim> b rl

1. boot the baseline unmapped system as Mark showed below. Make sure your system is configured as an 11/40. 2. type the following at the ?>? prompt ins $boo boo [1,54]rsx11m this will boot up the mapped system. 3. to make this the default (after the acs command wait for a response that the checkpoint file is inactive): acs sy:/blks=0 sav /wb now you should have a bootable mapped system which you can copy to your physical RL02. I plan to use PDPGUI to port the disk images to my PDP 11/40 actual RL02(s). I have done this a number of times, built RT-11 versions that way. Works well. Thanks again. Bill Degnan

On Feb 6, 2017, at 8:35 AM, william degnan <billdegnan at gmail.com> wrote: So essentially what you're saying is that simH by luck converted the disk to RL02 because it was converted to disk format incorrectly, and that at some point the disk image ballooned to 10MB from 5MB? Above you see the output of simh> sh rl ...after the re-sizing of the disk, would this config fail to be able to load the disks because they were resized? At some point these RL01's were changed to RL02s? Or can you with simH simply load an RL02 disk even though you set the rl = RL01? See what I mean? Bill

The v3.2 version I have from bitsavers has the baseline disk a few bytes larger than an RL01 so simH autosized it (incorrectly) to an RL02. Hopefully Mark?s new sizing code should avoid this in the future. To copy an RL01 RSX disk to an RL02 you can use BRU (Backup and Restore Utility). Get the magtape image BB-L974F-BC_RSX11M_4.5_BRU64K.tap from bitsavers. Attach your RL01 image to rl0 and create a new RL02 image attached to rl1. Boot the magtape: first device is dl0: second device is dl1:

At the ?>? prompt type ?run bru? At the ?BRU>? prompt type ?/init dl0: dl1:? and it will perform

baseline system, you should be able to boot the newly created RL02.

do If you?ve set the simH to an 11/40 you can attach it to tq0 before booting. It will boot a standalone system so the tape is no longer needed after the boot. I was unable to successfully boot the tape in less than 256KB so make sure you have sufficient memory enabled.

ins $boo boo [1,54]rsx11m

run bru

On Feb 6, 2017, at 10:13 PM, william degnan <billdegnan at gmail.com> wrote: CORRECTION: Running simH on a $9.95 Next Thing Co CHIP. 1. I built an RL01 disk with RSX11/M that boots within simH using the files I found online. set cpu 11/40 set cpu 64K set rl0 writeenabled set rl0 rl01 set rl1 writeenabled set rl1 rl01 set rl2 writeenabled set rl2 rl01 set rl3 writeenabled set rl3 rl01 attach rl0 rsxm32.rl01 attach rl1 excprv.rl01 attach rl2 mcrsrc.rl01 attach rl3 rlutil.rl01 boot r1 [set the time and date] 1.5. Within RSX11/M make it boot into the mapped version each time - (after the acs command wait for a response that the checkpoint file is inactive): 2. I installed a blank RL02 disk (rlRSX11M.dsk is a blank RL02) 3. I downloaded the tape from bitsavers with the program that copies from RL01 to RL02 BB-L974F-BC_RSX11M_4.5_BRU64K.tap 4. Created a simh script to load up the tape. I called it RSX-11_copy2RL02.ini: set cpu 11/40 set cpu 256K set rl0 writeenabled set rl0 rl01 set rl1 writeenabled set rl1 rl02 attach rl0 rsxm32.rl01 attach rl1 rlRSX11M.dsk attach TQ0 -r BB-L974F-BC_RSX11M_4.5_BRU64K.tap b TQ0 This took me into the tape utlity. I set the date and then entered the command first device is dl0: second device is dl1: BRU> /init dl0: dl1: 5. I fired up PDPGUI and used the Tools --> Read/write disk images utility to copy the RL02 disk to an actual RL02 disk on my PDP 11/40 with M9312 ROM monitor running Note that you have to play around a little with the disk building process, this is the best order of steps. Make sure your system is up and running and your drive is ready to be written to. Open the terminal window and make sure you're ok. You can use it to watch the progress. 1. First set the controller type, unit, device 2. Reload Driver button This will open a window to load the program, and then a MACRO-11 window. You should next see the disk utility program being downloaded via the terminal window 3. Once this is done, you'll see the first <START OF BLOCK> printed on the terninal, that means your're ready to go. 4. Choose the disk image using the Load Image File button 5. Make sure you're starting at sector 0 6. Press the top middle button to write the image. You'll see activity on both the terminal and your front panel, drive light will blink once for each block. Bill Bill