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Messages - Lawrence Wickert

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Setup & Installation / Re: Question about OS/2 3.5 floppy image files
« on: February 25, 2017, 05:55:24 pm »
dd if=filename.img of=/dev/fd0 bs=1024 conv=noerror

This seems to work for writing these large images.

And is totally useless and wrong, because XDF uses variable sector sizes and not 1K constant. The only way is to use the XDFCOPY utility program shipped by IBM and also included in later versions of PC DOS. Perhaps it can run in dosemu under Linux.

The only virtualisation solution that can deal with XDF image files (not physical XDF floppies) is Microsoft's Virtual PC.

The only reason for including XDF still on Warp 4 CD-ROM were it's use for older CID redirected installation methods. In an ususal attended installation only the 3 FAT floppies are needed.

Do you know is Microsoft Virtual PC will tun under Wine?  How about Virtual Box?


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Setup & Installation / Re: Question about OS/2 3.5 floppy image files
« on: February 25, 2017, 08:33:34 am »
dd if=filename.img of=/dev/fd0 bs=1024 conv=noerror

This seems to work for writing these large images.

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Setup & Installation / Re: Question about OS/2 3.5 floppy image files
« on: February 25, 2017, 07:36:31 am »
It certainly makes more sense to use and re-use a few floppies rather than burn dozens.  I'll have to see if I can actually burn the XDF images on by linux machine. 

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Setup & Installation / Question about OS/2 3.5 floppy image files
« on: February 25, 2017, 06:43:54 am »
I want to load OS/2 onto a (real) computer with a (real) 3.5 floppy drive. So I down load OS/2 WARP 4.0 (3.5) from the Winworld Library and unzip it. Yikes! 111 image files. Before I go out and buy a crate of 3.5 floppies I take a look at these files. Most are 1,474,560 byte image files but many are 1,884,160 byte image files?????????? Never heard of such an animal.

So I download OS/2 3.0, same story but only 43 image files and some are 1,884,160 bytes in size.

Finally I try OS/2 2.0. OK only 21 image files and all are 1,474,560 bytes in size.

Can anyone explain what is going on with these apparently oversized image files?

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