Write .IMG files to real disks on the PCjr

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Write .IMG files to real disks on the PCjr

Postby Tempest » Thu Mar 05, 2015 10:09 am

I'm guessing there's no way to do this, but I thought I'd ask...

Can you make real floppy disks out of .img files on the PCjr? I can get those files to my jr via the 3.5" floppy, but I need a way to write them to real disks. On my DOS 6.22 box I used a program called DCOPY but I'm not sure it would run on the jr. I need to do this on the jr because it has the 360K drive and the one on my DOS box is a high density one (I think).
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Re: Write .IMG files to real disks on the PCjr

Postby Trixter » Thu Mar 05, 2015 10:23 am

Of course you can write disk images files on PCjr. Mike's imaging utils work fine (hell, they were probably developed on a jr). Mine are here: ftp://ftp.oldskool.org/pub/misc/DISKUTIL.ZIP
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Re: Write .IMG files to real disks on the PCjr

Postby Tempest » Thu Mar 05, 2015 10:33 am

Awesome. Are the patched DOS 5 disks available somewhere or am I going to have to do my own patching?
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Re: Write .IMG files to real disks on the PCjr

Postby Trixter » Thu Mar 05, 2015 10:47 am

Do your own. Search this forum for "patch DOS" and you should find the utility that does it.
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Re: Write .IMG files to real disks on the PCjr

Postby Tempest » Thu Mar 05, 2015 10:56 am

Great. Looks like it works for DOS 6.22 as well. Any reason not to use 6.22 on the jr?
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Re: Write .IMG files to real disks on the PCjr

Postby Trixter » Thu Mar 05, 2015 11:14 am

Personal preference. 5.0 has slightly less memory requirements than 6.22. I run IBM PC DOS 2000 on mine.
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Re: Write .IMG files to real disks on the PCjr

Postby Tempest » Thu Mar 05, 2015 11:20 am

Well with 736K (using /L in jrconfig) I don't think a little extra memory use would be a problem. Then again I don't know what 6.22 would offer over 5.0 that would be of use on a PCjr (it's not like HIMEM and all that jazz can be used).

So why use PC DOS 2000? What advantages does that have? Have you run into any compatibility issues yet?
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Re: Write .IMG files to real disks on the PCjr

Postby Trixter » Thu Mar 05, 2015 11:21 am

I run PC DOS 2000 because 1. I like having a IBM OS on there, and 2. all the utils are Y2K compliant.
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Re: Write .IMG files to real disks on the PCjr

Postby Tempest » Thu Mar 05, 2015 11:25 am

Trixter wrote:I run PC DOS 2000 because 1. I like having a IBM OS on there, and 2. all the utils are Y2K compliant.


How is the memory footprint compared to 5.0 or 6.22?
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Re: Write .IMG files to real disks on the PCjr

Postby Trixter » Thu Mar 05, 2015 11:27 am

It's similar.

You're overthinking this. Go install something! :-)
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