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Thread: Before I pile this back into the "fix when I retire" pile, one last push...

  1. #1

    Default Before I pile this back into the "fix when I retire" pile, one last push...

    I'm trying to boot this Osborne Executive with a Gotek + FlashFloppy. I've tried configs for Shugart and IBM, nothing happens. Does anyone know of a Osborne Exec working with a Gotek, proving that it is possible?

    2020-03-28 12.07.29.jpg

  2. #2


    Note: I've tried DoubleTop's 360K drive parameters with no success. The standard drives are OKI gm3305's which are not head-stepping, so it is hard to rule out a motherboard fdc problem.

  3. #3


    I note with some confusion the hand-written label on this rom next to the floppy controller and wonder if it is some sort of aftermarket mod, and what that signifies concerning 360K drive parameters in FlashFloppy.
    2020-03-28 13.19.13.jpg

  4. #4
    Join Date
    Jan 2007
    Pacific Northwest, USA
    Blog Entries


    There were several different third-party Osborne ROM choices. There were also 96 tpi versions. Best thing is to find a disk that boots on your system and analyze the layout.

  5. #5


    Quote Originally Posted by Chuck(G) View Post
    There were several different third-party Osborne ROM choices. There were also 96 tpi versions. Best thing is to find a disk that boots on your system and analyze the layout.
    Well that’s it isn’t it? No drives with which to test.

  6. #6
    Join Date
    Mar 2013
    Chaffee, MO


    You can try these two Flashfloppy definitions:

    #osborne Executive w/Z3 - DSDD 96 tpi 5.25" - 1024 x 5
    cyls = 160
    heads = 2
    secs = 5
    interleave = 2
    bps = 1024
    id = 1
    rpm = 300
    rate = 250
    mode = mfm
    iam = no

    #osborne Executive Dig. Arts - DSDD 48 tpi 5.25" - 1024 x 5
    cyls = 80
    heads = 2
    secs = 5
    interleave = 2
    bps = 1024
    id = 1
    rpm = 300
    rate = 250
    mode = mfm
    iam = no

    The HxC software should be able to create a .HFE file that boots.


  7. #7
    Join Date
    Mar 2013
    Chaffee, MO


    Bitsavers has the following Images for ROM Version 1.3

    DS101484.002.imd = DS84002.IMD <-------- I renamed the Image to this for conversion
    10/14/84 DAB

    DS101484.006.imd = DS84006.IMD <-------- I renamed the Image to this for conversion
    10/14/84 DAB

    EXECB13.IMD = EXECB13.IMD <-------- I renamed the Image to this for conversion
    SETUP V1.3
    PRE RELEASE 10/2/84

    EXROM13.001.imd = EXROM131.IMD <-------- I renamed the Image to this for conversion
    V 1.3 DISK 1 OF 2

    EXROM13.002.imd = EXROM132.IMD <-------- I renamed the Image to this for conversion
    V 1.3 DISK 2 OF 2

    If you like I can create some .HFE files for you to try booting. I want to access the .RAW images
    I have created first with cpmtools to make sure they can be accessed.


  8. #8
    Join Date
    Mar 2013
    Chaffee, MO


    The Image EXECB13.RAW can be accessed with the cpmtools osba definition.
    $ cpmls -f osba -D EXECB13.RAW
         Name    Bytes   Recs  Attr     update             create
    ------------ ------ ------ ---- -----------------  -----------------
    ALTFONT .SYS     2K     16    
    CCP     .COM     4K     25    
    CPM3    .SYS    20K    148 RS 
    DIR     .COM    16K    114 RS 
    EBASIC  .DOC    16K    124    
    ESBASIC .DOC    16K    128    
    PIP     .COM    10K     68 RS 
    SETUP   .COM    12K     85    
    SHOW    .COM    10K     66 R  
    XDIR    .COM     4K     18    
       10 Files occupying    110K,     276K Free.
    This would be a good choice for testing a .HFE boot image with a GOTEK.


  9. #9
    Join Date
    Mar 2013
    Chaffee, MO


    Here is a good read on the newer drives.



    Manual Version 1.2
    (January 1986)


    Do not use your new double sided option until you have
    completely read this manual. Failure to follow the recommended
    software upgrade procedure may result in damage to your diskettes
    and/or loss of programs and data.


    The copyright to all software and firmware accompanying this
    double sided upgrade is as follows:

    Copyright 1982 by Osborne Computer Corporation (All Rights Reserved)
    Copyright 1984 by Future Systems (All Rights Reserved)

    No portion of this document or the accompanying software may be
    reproduced in any fashion or by any means, without the express
    written permission of Future Systems.

    All claims made relating to the use of diskettes other than
    Osborne(tm) formats are subject to change, and Future Systems
    cannot accept responsibility for copyright infringements incurred
    using the optional formats. In addition, Future Systems makes no
    warranties, implied or explicit, pertaining to the ability of the
    double sided upgrade to read and write formats other than those
    designated and implemented by Osborne Computer Corporation.

    Osborne is a registered trademark of the Osborne Computer
    Corporation. CP/M is a registered trademark of Digital Research.


    Future Systems warrants that this product is free from defects
    in material and workmanship. This limited warranty covers the
    software portion for a period not to exceed 90 days (3 months).
    The hardware warranty is not to exceed 270 days (9 months) from
    the date of purchase. This warranty is limited to the original
    purchaser ("Buyer") of the product, who purchases the product at

    During the above specified period of warranty, Future Systems
    will replace at no charge any software provided with the upgrade,
    that may prove to be defective. The defective software must be
    returned postpaid before a replacement is provided.

    If within the above specified period of warranty, there should
    occur mechanical problems with the disk drives due to factory
    defects or improper installation, if installed by Future Systems,
    Future Systems will replace or repair such drives free of charge.
    This warranty is only to cover those components and parts pro-
    vided with the upgrade that experience mechanical failures. It
    does not cover drive alignment life and realignment costs that
    the user may incur.

    This warranty is void and unenforceable if, in the exclusive
    opinion of Future Systems, the product has been damaged by
    accident, misuse, neglect, or as a result of modification by any
    other than Future Systems, or as a result of other causes not
    arising out of defects in materials or workmanship.

    Except for those set forth above, no other warranties are
    expressed or implied. Future Systems shall not be liable for loss
    of product or incidental or consequential costs, expenses, or
    damages incurred by any user.

    Buyers exclusive rights as set forth above, for any claims
    arising from the purchase of this product, are to be confined to
    the replacement of said product.

    NOTE: Some states do not allow the exclusion or limitation of
    warranties or of incidental or consequential damages, so the
    above limitations or exclusions may not apply to you.

    41256 ROBERTS AVE. # 51
    FREMONT, CA. 94538
    (415) 659-9598


    Congratulations !!! You are now one of the proud owners of the
    Double Sided drive option for the Osborne Executive Computer.
    Your expectations have no doubt been quite high, and we hope
    even to surpass them. Some of the advantages that you can expect
    to see from the very start are: double the disk drive storage
    capacity you are accustomed to, a track to track seek time twice
    as fast as before, and a drive mechanism and door assembly which
    will never pinch or deform your diskettes. Other, more subtle
    changes, will become evident to you as you spend more time using
    your upgraded system.

    The drives now in your system are made by Fujitsu (tm). The
    drives are classified one-half height, double-density, double-
    sided, model number M 2551A. These drives use only 7 watts of
    power at speed, and have a direct drive spindle motor.

    You may also notice that we have changed the system monitor ROM
    so your sign on message now displays a version 1.3 message,
    instead of the V 1.2 or V 1.21. This means, for those of you who
    had the V 1.2 ROM, that you now have a ROM with all the changes
    Osborne made to create the V 1.21 ROM, plus the firmware needed
    to support the double sided drives. For those of you who pur-
    chased the V 1.21 ROM, you have lost none of its enhancements.
    You have simply gained the double sided drive routines.

    There have been necessary changes made to the BIOS and other
    programs which read and write to the system tracks. NONE of
    these changes will have ill effects on the performance of any
    Osborne approved software program. These changes have been made
    to give you the ability to format, read, and write to both the
    Executive and OCC-1. We have also included the ability in the
    BIOS to read and write to the Vixen/OCC 4, Osborne's new double
    sided, CP/M 2.2 system. We consider it a benefit to maintain as
    much compatibility as possible over a product line. It only seems
    logical that all the Ozzies be able to read each other's disks.

    You may notice that there are a couple of new system files that
    you haven't seen before. These files were always present on the
    old system tracks but they were not displayed in the directory as
    they are now. Of these new files, the CPM3.SYS and CCP.COM files
    must be on a disk for that disk to boot. The file ALTFONT.SYS is
    the file that contains the data for the Alternate font ram which
    is a toggle controlled by a ^TAB (CTRL TAB). This file is not a
    necessity for the systems operation. In initiating the new BIOS
    it was necessary to separate these files from the system tracks.
    In this state however, the system files require more disk space.

    As we move on, we will see how to transfer all your active
    program and data diskettes to double sided format diskettes. You
    will also create a new CP/M Utility disk containing the modified
    programs we have supplied to you.


    When you received your upgraded double sided system, you
    also received a new CP/M system diskette with several modified
    programs which we discussed earlier. The diskette is called the
    Double Sided CP/M System Disk, and is labeled with this
    identification. The Double Sided CP/M System Disk contains the
    following programs:

    CP/M Version 3.0 System Files

    Double Sided BIOS version 1.4
    Double Sided Copy version 1.2
    Double Sided Setup version 1.3
    Double Sided Copysys version 1.2
    Double Sided Chargen version 1.1
    Double Sided Fix version 1.0

    These programs have been changed to work properly with the new
    double sided BIOS version 1.4. It has not been necessary to
    modify or change in any way, any of the other programs you now
    have. Programs other than those listed above will continue to run
    as before, and are not affected by the upgrade and subsequent
    BIOS change. The new BIOS is a modified version of the Executive
    Enhanced BIOS version 1.1, and therefore corrects the printer
    time-out error messages experienced with version 1.0.

    An additional characteristic of the new version of BIOS is
    that there is only one system track, not three system tracks as
    before. As a result, all utility programs which read from, or
    write to, the system tracks had to be rewritten in order to
    operate in the same manner as the original single sided
    software. This single system track format was used in order to
    match the system format of the new Osborne CP/M 2.2 system called

    Using only one system track however has not been without its
    form of give and take. We now have to put files into the system
    directory that were maintained inside the BIOS before and
    therefore never seen, as was explained earlier.

    Of all the modified utility programs on this diskette, only one
    will appear somewhat different than its single sided counterpart.
    That program is COPY. The other programs will continue, in appea-
    rance, to work as before.

    However because of the way the DSDD upgrade reads the disk, the
    location and number of the system tracks has also changed, it is
    very important to use only the new versions of COPY, SETUP,
    COPYSYS, AND CHARGEN on your double sided diskettes.

    The original single sided versions of these utility programs
    will not work properly with the new BIOS, and to be on the safe
    side, the single sided versions should be removed from your
    copies of the CP/M diskettes. Please follow the most basic rule
    of computing and copy your original program diskette. Then put
    the original in a safe, dry place. This protects you from loss
    or damage to the original.


    In order to copy your original Double Sided System Disk, you
    must first have a blank double sided diskette. Certified double
    sided diskettes can be purchased at any computer store that
    handles software. Diskettes would be designated as: Double Sided
    Double Density, Soft Sectored, 40 Tracks.

    To copy your original Double Sided System Disk, place a blank
    diskette in Drive B and your original in Drive A. Press return
    and follow the instructions on page 27, volume 1 of your
    Executive User's Guide, under the heading, "Copying Diskettes".
    Once the copy is made, prepare a label marked Double Sided System
    Diskette. Place it on your copy and put the original safely away.

    Now that you have a working copy of the system disk, you can
    proceed to change-over the existing programs and files to double
    sided diskettes. Follow these steps for double sided format:

    1) Place a blank diskette into Drive B, and your copy of the
    double sided utility disk in drive A. Now boot the system
    and after the A> type COPY and press return. A menu will
    appear with a lighted block over the COPY DISKETTES option.
    Use the arrow key to move the block down to FORMAT DISKETTES
    and press return. The default option for formatting is
    Drive B double sided. This is what we want so now press
    return and it will begin formatting your diskette double
    sided. Notice the new option in the third position,
    CHANGE FORMAT DENSITY. This option is a toggle and when
    selected will change from double-sided to single-sided
    format. Read this entire menu.

    2) Once the format is complete, press return and use the arrow
    key to move the block down to RETURN TO CPM, then press

    3) Now at the A> type COPYSYS and press return. This will be
    answered by a new menu. Now transfer the new BIOS to your
    formatted diskette using the COPYSYS program as described on
    page 64, volume 1, under the heading COPYSYS. Once you have
    saved the operating system onto the diskette, return to CPM.

    4) At the A> type PIP and press return. This will invoke the
    program used to transfer data between drives, one file at a
    time. Using PIP is described on page 63, volume 1 of the
    Executive Guide. Remove your system disk from Drive A
    after the asterisk (*) appears and place in Drive A a disk-
    ette that you wish to copy files from. Type after the *
    B:=A:*.*[V] and RETURN. This will copy every file from Drive
    A to Drive B, regardless of name or extension. It will also
    verify the transferred data.

    5) When the transfer is complete, the * will reappear. Remove
    your double sided copy from Drive B and label appropriately.
    For more copies follow these 5 steps again.


    There is one consideration of which anyone who wishes to use a
    double sided system, and a single sided system should be fully
    aware . Transferring files between the two systems will require
    that you use two different formats. This is quite acceptable but
    it does have one limitation. If a diskette is formatted double
    sided, then placed in a single sided system and formatted single
    sided and then copied to, the diskette will be unreadable by the
    double sided system. However it will be readable by the single
    sided system. There is program provided to correct this problem
    for you should it occur, it is called Fix.Com and is explained at
    the end of this documentation.

    The reason for this reading problem is the diskette format.
    The double sided system will try to read the system tracks of the
    diskette, such as the directory, from the back side of the disk,
    side one, but the single sided system format only writes to one
    side of the diskette, side 0. Therefore the error message "Disk
    Not Formatted" or "No Files" may appear. You may also get a
    directory listing that looks something like this:

    B: ....... B: .......
    B: ....... B: .......
    B: ....... B: .......

    To avoid this problem, remember: diskettes that have been
    formatted double-sided at any time, must be reformatted single-
    sided on a double-sided system, before they are copied to on a
    single-sided system.

    The other fact that you may notice about the format is that
    the files will now occupy a minimum of 2K of data space, even if
    the file is only two lines in length. The reason for this change
    was to conform to the Vixen format constraints.

    This upgrade has been thoroughly tested by many competent
    persons, including those at Osborne Computers, and as yet, we are
    not aware of any problems with the upgrade when working with
    programs that were originally supplied with your system. However,
    if any problems do come up, we would be most pleased to hear of
    them so that we can make whatever adjustments may be required.

    Note: There is a program for the Drive C: product called Archive
    and Retreive that does not work with this upgrade. However the
    Trantor hard disk version of Archive and Retreive works fine, as
    well as the public domain programs for the same function.

    There are some programs that will not work with the upgrade
    because they are intended to write to the system tracks for one
    reason or another, these are setup type programs. Two that we
    have tested and are sure about are MakeKeys and Autosetup. This
    has to do with the fact that there are now only one system track
    and not three as before.

    (JAN. 1985)

    This documentation is to be used as a supplement to the orig-
    inal users documentation provided with the double sided upgrade.
    The program covered below is known as FIX.COM and was created
    specifically for use with the double sided upgrade, and will
    therefore not work with any other of the Osborne products.

    FIX.COM has been created to eliminate a problem that has proved
    itself a bit more than a nuisance. This is the problem of format
    ting a diskette double sided and then moving the same diskette
    over to a single sided system and formatting it again. As explain
    ed in the system notes of your original documentation, a diskette
    of this nature will yield a bad directory output when once again
    loaded in a double sided unit.

    When you get a directory listing that looks like the one in
    figure 1, then follow these few simple steps.

    A> ........ A> .......
    A> ........ A> .......
    A> ........
    FIGURE 1

    Place a diskette into drive A that contains a copy of the
    program FIX.COM, and place the diskette to be fixed into drive B.

    Now type after the A> FIX <cr>. This will start the program and
    display the start-up menu, see figure 2.

    V 1.0



    FIGURE 2

    The flashing warning message is to alert you to the danger of
    fixing any diskettes that you have double sided information on
    and wish to keep. It is a warning that should be heeded in that
    the way fix works is to format the side of your diskette not used
    by a single sided system. Therefore, if you have double sided
    format files on the diskette, they will be destroyed by this

    The default setting for the FIX program is to FIX A DISK IN
    DRIVE B. Because at the beginning of this documentation we pre-
    arrange this situation to meet this setting, all we need do now
    is type a RETURN.

    Now a new screen will be displayed that looks like that of
    figure 3.


    0 1 2 3


    FIGURE 3

    When the fixing format is complete and there are no errors, it
    will display the message FIXING COMPLETED SUCCESSFULLY with a
    line of stars under the track numbers.

    Now the diskette has been fixed, and at this point you must
    press RETURN to return to the main menu. Once back at the main
    menu, you can either use the arrow keys to move down and exit to
    CP/M, or place another diskette to be fixed into drive B and redo
    the previous steps.

    Well, that's it folks! It is a simple program with a simple
    application, and we at Future Systems hope you enjoy it.

    This upgrade is warranted from the date of shipment for the
    period of nine months. This warranty includes parts, labor, and
    return shipping, but does not cover the cost of shipping the unit
    to Future Systems. Should the upgrade owner, to save time or
    avoid shipping his system, choose to take the system to the
    nearest Future Systems authorized dealer for warranty repair
    work, the upgrade owner must pay labor charges as set by that
    dealer. Parts would still be fully covered by Future Systems and
    supplied at no charge.

    All owner registration will be used as a means to contact the
    buyer of this upgrade, in the event of any software and/or
    hardware upgrade or changes that may come about. Only those
    persons who fill out the registration page and return it to
    Future Systems will be notified.

    There has been a Software Bug Report Form enclosed with this
    documentation to make it as easy as possible for you to record
    your findings and send them to us. You might want to make a Xerox
    copy of the form before you fill it out so that you will always
    have a blank one on hand.

    Please fill out the entire report and explain as clearly as
    you can how we may recreate the problem in our lab. The more you
    tell us, the more we know and the more we know, the sooner we can
    resolve the problem.

    It is our desire not only to provide a fine quality product,
    but also to provide a level of support well above the norm for
    this field.


    This form is provided as a key trouble-shooting link between
    you and Future Systems with regard to the software provided with
    the double sided upgrade. It is important that problems with the
    related software be brought to the attention of Future Systems as
    soon as possible. We appreciate your efforts.

    Name __________________________________________________ ______

    Address __________________________________________________ ___

    City,State,Zip ______________________________________________

    Unit S/N ___________________ Upgrade date ___________________

    Program and version BUG appears in __________________________

    Description of problem ______________________________________

    __________________________________________________ ___________

    __________________________________________________ ___________

    __________________________________________________ ___________

    How may we recreate the problem _____________________________

    __________________________________________________ ___________

    __________________________________________________ ___________

    __________________________________________________ ___________


    This document is to be filed with Future Systems for the pur-
    pose of maintaining a current and correct form of information for
    each upgrade user. This helps both us at Future Systems and you
    by providing an avenue of communication so that we will be able
    to keep track of what version of the software and documentation
    you currently have on hand. This is done so that in the event
    new software or additional documentation is created, it may be
    sent to you.
    Those who do not register with Future Systems will not be
    notified or receive new versions or updates of the software and/
    or documentation should they become available.

    Please fill out this form completely and legibly.

    NAME: __________________________________________________ _________

    ADDRESS: __________________________________________________ ______

    TELEPHONE: ________________________

    PLACE OF PURCHASE: ______________________________________________

    DATE OF PURCHASE: _______________________________________________

    SYSTEM SERIAL NUMBER: ___________________________________________


    You may have noticed that there are a few programs on your new
    CPM diskette that were not mentioned previously.

    These programs are from the public domain library from the
    local First Osborne Group office, FOG for short. These programs
    are free of charge and may be distributed freely to anyone you
    may wish to share them with. For more information on FOG and what
    it can do for you, you may contact FOG at (415) 755-2009 or write:
    P.O. Box 3474
    Daly City, Ca. 94015-0474

    The program MAGE31 is intended to be used in those times when
    you have typed a multi-page document into Wordstar and for some
    unknown or unfortunate reason you get the infamous BDOS error and
    are quickly shunted out to the A prompt. MAGE31 will allow you to
    go into memory and recover most if not all of your work, that may
    have otherwise been lost.

    The program TELL is used to tell you where all the primary
    functions of the BIOS, BDOS, and hardware instructions are
    located by address. This is very useful when you get a program
    that requires you to identify a lot of these address for the
    setup configuration on the new software.

    The program UNERAX is used to recover files or programs that
    you may inadvertently erase from the disk directory. By using
    unerax, you can call back any file or program that you may have
    erased, providing you have not written to the disk since your
    erasing the files.

    The program SWEEP is a very powerful utility program and can be
    an indespensible friend once you have learned to get around in it
    and comprehend the vastness of its power and flexibility.

    The program FINDBAD is a program used to search out and lock
    out bad sectors on a diskette. I run this program on each
    diskette that I format because Findbad will locate disk errors
    that the format will over look.

    So there you have five additional programs that we hope you
    will find useful and informative. Give them all a try and see if
    you don't find yourself amazed with the out come.

    NOTE: These five programs are considered Public Domain Software
    and therefore may be freely distributed, however none of the
    other programs on your new CPM disk may be given to any other
    person without the express written permission of Future Systems.

  10. #10


    Quote Originally Posted by ldkraemer View Post

    If you like I can create some .HFE files for you to try booting. I want to access the .RAW images
    I have created first with cpmtools to make sure they can be accessed.

    That would be ideal, as it would help eliminate one variable... I'm not sure if the drive params are wrong, or if the image itself is not in a usable format.


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