I meant to reply-all for this.

        paul

> Begin forwarded message:
> 
>> On Oct 9, 2024, at 5:27 PM, Zane Healy <heal...@avanthar.com> wrote:
>> 
>> On Oct 9, 2024, at 10:22 AM, Paul Koning via cctalk <cctalk@classiccmp.org> 
>> wrote:
>>> 
>>> Earlier there was a question about MSCP disk sizes.  I did some checking.
>>> 
>>> RSTS understands all the devices known by name in SIMH, including the 
>>> "giant" RF73.  As of the "big disk" support, which is in V10.1 and I think 
>>> a few earlier versions, it can handle something that big.  It draws the 
>>> line at 4096 MB; bigger than that and it will tell you the disk is too big 
>>> when you try to initialize it.  I thought it might use only the part it can 
>>> handle, but no, it simply refuses entirely.
>>> 
>>>     Paul
>> 
>> 
>> I hate to think what setting up a 4GB drive would look like.  I have a 1GB 
>> SCSI HD for my PDP-11/73 (assuming the drive isn’t dead).  I still remember 
>> just how long it took the RSTS/E 10.1 install to prepare that drive (so long 
>> I only did a single pass on the drive test).
>> 
>> On a related note, Paul, do you have any idea if RSTS/E can be installed 
>> from a CD-ROM?  I’ve done installs of RT-11 and RSX-11M+ from CD, but 
>> couldn’t figure out how to do a RSTS/E install from CD.  I can’t remember if 
>> I was able to use 4mm DAT, or if I had to use a TK50 (it’s been a *LONG* 
>> time since I did any installs).
> 
> I have never seen a RSTS kit on CD-ROM, but it should work just fine.  At one 
> time I worked with Fred Knight to help create a "combined kits" CDROM -- one 
> that would hold RSTS plus all the layered products on a bootable CD, 
> including at least a dummy standard CDROM file system so you could recognize 
> it.  That required placing two file systems on one device, which turns out to 
> be possible because the starting points ("superblock") of the two are in 
> different blocks.  My RSTSFLX V2.x supports creating such a thing.
> 
> While I knew of the plans, I don't think they were ever completed; I 
> certainly never saw any actual delivery.
> 
> So anyway, if you were to create a RSTS disk image file with kits on it and 
> an MSCP bootstrap, and burn that to CDROM, I would think it would be bootable 
> and useable.  You might give it a try!
> 
>       paul

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