Cromix kermit disks from deramp

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RanchoHam

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May 14, 2026, 11:39:14 AM (2 days ago) May 14
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Has anyone successfully used the kermit images from Mike Douglas' web site in a real or emulated system?

I am trying to setup kermit on a High Nibble Z-1 emulator.  I have converted all 3 files (291KERMI.IMD  465KERMI.IMD  601KERMI.IMD) to raw disk images with img2raw (https://github.com/RetroFloppy/imd2raw).  Only 2 of the files () will successfully transfer to the Z-1 emulator and neither mount successfully.  Both show block read errors when mounting.

I'd like to get kermit, fortran, cobol, and other programs working; but, so far, I've struck-out trying to get archived images working.  I'm fairly sure that it is something that I am doing wrong.

Thanks,
Rich

KDK KDK

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May 14, 2026, 12:16:44 PM (2 days ago) May 14
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I have used cobol,Fortran and 465 Kermit on real hardware. Z80 CDOS 2.58
I transfered the images to "8 floppy disks using a 486 PC and image disk (IMD).
Not sure if they work on cromix.
465 Kermit works with TUART board


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RanchoHam

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May 14, 2026, 12:46:34 PM (2 days ago) May 14
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Thanks Chris, that lets me know the IMD files are good.  Funny though, the 465 is the one image that would NOT at least transfer to the emulator.  :(   

I found these files in Mike's cromix directory, so theoretically they were supposed to be for a cromix system.  Now which cromix system is a mystery.

Cheers,
Rich

Richard Muse

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May 14, 2026, 2:56:45 PM (2 days ago) May 14
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I've had trouble getting imd2raw to work myself.

465 Kermit is for 68000 Cromix. 601 PC and Z80 Kermit (601KERMI.IMD) is Z80 Kermit for Z80 Cromix. 291 has ckudia.c ckuscr.c ckutio.c ckuusr.c and ckuker.mak on it. These are the source files from Columbia University C-Kermit implementation.

I do use 465 and 601 on 'Real' cromix 68000 and Z80 Cromix systems. But I downloaded the .tar files from Marcus Github site and transferred them using pccom to 68000 cromix and then the Z80 one to Cromix 11.27 from a disk made on the 68000 system. Then extracted the tar's and installed them from there.

I can provide a full Cromix disk image of whichever one you want if it would help.

As an aside, I have one of the High Nibble kits but haven't assembled it yet so I'm not familiar with transferring files. If you can send the tar files, I can send those to you or you can pick them off of Marcus Archive if you have access or I can send them to you directly. They are about 300K each.

Richard

KDK KDK

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May 14, 2026, 5:42:29 PM (2 days ago) May 14
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I can confirm now that I am home. These are CDOS format. My Kermit disk may be a something I put together and not from an image. Most of my transferring is done with x modem that works with a TUART board
Cobol 4.46 SS/SD
FDA z80 macro assembler 3.07 ss/sd
Super calc 2 v1.0 SS/SD
Multiplan v1.06 SS/SD
Dbase II 2.40 SS/SD
Kermit-80 v 4.11 
Wordstar 3.3



RanchoHam

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May 14, 2026, 8:42:58 PM (2 days ago) May 14
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Thanks for the help guys!

Richard:  
  1. Ok, I'll abandon imd2raw for now; and look into it later.  I suppose I'll have to cobble up something to run Dave Dunfield's software.
  2. My High Nibble Z-1 thinks it is a Z80 running Cromix 11.27 at 4MHz with a TUART board, 4 floppies, and up-to 3 hard disks attached.  I have to boot from a floppy, and then make the hard disk root (/) and mount a second hard disk as /Home.  
  3. Transferring files is actually pretty easy using the provided web-interface: it is just a drag-and-drop of a correctly formatted disk image from my control machine (either Win11 laptop or Linux Raspberry Pi OS desktop).  The imd2raw conversions I tried have block errors when trying to mount the disk.  It is not the transfer software as I can round-trip a working disk image from Z-1-to-Win11-and-back which then runs fine.  BTW, the High Nibble Z-1 looks great blinking under my TV without all the fan noise!
  4. What is a good address for "Marcus Github site"?  I don't recognize it off-hand.
  5. A known working Chromix disk image would be greatly appreciated.

Thanks again,
Rich

RanchoHam

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May 14, 2026, 8:45:11 PM (2 days ago) May 14
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Chris,

Where did you get your Cobol software?  That is one language I have never played with.  

Cheers
Rich

Damian Wildie

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May 14, 2026, 9:13:55 PM (2 days ago) May 14
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The 291 & 465 disks are 8" uniform format and mount correctly in a Cromemco 68K emulator.

The 601 disk is 5.25" cromix format but has multiple missing sectors and could not be mounted.

cromix-fs version 2.8, Damian Wildie

Reading IMD file 601KERMI.IMD
IMD header: IMD 1.17:  4/04/2010 12:56:59
Kermit for Cromemco and IBMPC


601 CSDSDDST

Sector is "Unavailable" in IMD file: cylinder 0, head 0, sector 2
Sector is "Unavailable" in IMD file: cylinder 0, head 0, sector 4
Sector is "Unavailable" in IMD file: cylinder 0, head 0, sector 6
Sector is "Unavailable" in IMD file: cylinder 0, head 0, sector 8
Sector is "Unavailable" in IMD file: cylinder 0, head 0, sector 10
Sector is "Unavailable" in IMD file: cylinder 0, head 0, sector 11
Sector is "Unavailable" in IMD file: cylinder 0, head 0, sector 13
Sector is "Unavailable" in IMD file: cylinder 0, head 0, sector 14
Sector is "Unavailable" in IMD file: cylinder 0, head 0, sector 16
Sector is "Unavailable" in IMD file: cylinder 0, head 0, sector 17
Sector is "Unavailable" in IMD file: cylinder 0, head 0, sector 18
Sector is "Unavailable" in IMD file: cylinder 0, head 0, sector 1
Read 80 tracks

Sector errors:
 Unavailable:    12


Kind regards
Damian


Chris LaFond

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May 15, 2026, 12:34:08 PM (19 hours ago) May 15
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Rich,

google won't let me attach a file. If you need I am sure we can figure out a way to send you a zip file. Otherwise here is the Deramp listing:

https://deramp.com/downloads/mfe_archive/010-S100%20Computers%20and%20Boards/00-Cromemco/40-Cromemco%20Software/Cobol/

copy Cobol.com, link.com and the overlay files, that should be enough to compile a cob program.

wpe...@brainless.org

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May 15, 2026, 12:53:26 PM (18 hours ago) May 15
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Hi,

 

I just rename .zip to .PIZ and that works most of the time. 

 

 

 

 

 

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Chris LaFond

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May 15, 2026, 1:06:12 PM (18 hours ago) May 15
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I can't get it to send. I tried zip, tar, tar.gz with renamed extension. google says it's a security risk

Richard McDonald

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May 15, 2026, 6:36:28 PM (13 hours ago) May 15
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Hey Chris,

Are you trying to send it directly from/through googlegroups?

For now, put it aside and give me a chance to try pulling the cobol.com et al files from deramp.

Cheers,
Rich

 

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RanchoHam

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May 15, 2026, 8:47:47 PM (11 hours ago) May 15
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Great success to report!  
  1. I used Howard Harte's imd-utils to successfully transform the IMD file into a raw DSK file which was accepted by the High Nibble Z-1 as a valid disk file.  (Hint: also requires Howard's libimd project.)
  2. Furthermore, I was able to open the cobol.dsk in CDOS and run the demo.
  3. Then I was able to copy the demo file and the cobol runtime to cromix (using cdoscopy) and run the demo.
  4. Next step is to cdoscopy all of the necessary cobol related files to cromix to compile my own program solely in cromix.
Thanks to one and all who made suggestions,
Rich
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