Search found 14 matches

by KennyPowers
Sun Jul 18, 2021 9:25 pm
Forum: Support
Topic: help writing bootable Osborne disks from stream files
Replies: 27
Views: 414

Re: help writing bootable Osborne disks from stream files

Thanks a ton guys! I know the topic strayed a bit from anything KryoFlux related. I'll be traveling for about a week, but I'll open the Osborne up when I get back and see if I can't get drive A "up to speed" so to speak :lol: It's a shame that those alignment diskettes are so hard to find ...
by KennyPowers
Sat Jul 17, 2021 2:18 pm
Forum: Support
Topic: help writing bootable Osborne disks from stream files
Replies: 27
Views: 414

Re: help writing bootable Osborne disks from stream files

Please boot from drive B and use the COPYSYS command to write a copy of the boot floppy on drive A. Does the floppy written on A this way look the same on the odd tracks? David Here's what I did: Wrote two system disks from the stream files you posted on the first page. Booted the Osborne from driv...
by KennyPowers
Fri Jul 16, 2021 6:50 pm
Forum: Support
Topic: help writing bootable Osborne disks from stream files
Replies: 27
Views: 414

Re: help writing bootable Osborne disks from stream files

As I said the only other test I can think of is reading the "original" floppy with a 80 track drive and look at the odd tracks... I just took one of the non-professionally-mastered "original" disks that reads fine in both Osborne drives, but duplicates of it would only read in d...
by KennyPowers
Fri Jul 16, 2021 6:14 pm
Forum: Support
Topic: help writing bootable Osborne disks from stream files
Replies: 27
Views: 414

Re: help writing bootable Osborne disks from stream files

However, this would require that the write protection has been removed from the original floppies (by cutting a notch for example). The original, professionally mastered system disk I posted a photo of on the last page has not been notched and reads fine in both drives. When dumping it with the TEA...
by KennyPowers
Thu Jul 15, 2021 7:10 pm
Forum: Support
Topic: help writing bootable Osborne disks from stream files
Replies: 27
Views: 414

Re: help writing bootable Osborne disks from stream files

So the problem is with the writing! Very strange indeed!I guess it's the same behavior when booting from drive B (Shift-Tab to change the letter in the boot screen). The difference between booting and running some programs is that the boot code is on track 0. But I have no idea why your drive shoul...
by KennyPowers
Thu Jul 15, 2021 6:46 pm
Forum: Support
Topic: help writing bootable Osborne disks from stream files
Replies: 27
Views: 414

Re: help writing bootable Osborne disks from stream files

Keeping mind that I know next-to-nothing about CP/M and I wasn't born yet when any of these disks were first mastered... :lol: I'm guessing the system's BIOS tries to boot from specific track(s)/sector(s)...maybe the drive I'm using for writing is having trouble accurately writing to that area of th...
by KennyPowers
Thu Jul 15, 2021 5:52 pm
Forum: Support
Topic: help writing bootable Osborne disks from stream files
Replies: 27
Views: 414

Re: help writing bootable Osborne disks from stream files

You might try to write the attached raw-files and boot them. It's of a known good osborne executive boot floppy! Thanks! Trying that now and will report back... I wrote those RAW files to 3 different disks and all of them did this when trying to boot from them: https://i.imgur.com/OtuD95W.jpg I the...
by KennyPowers
Thu Jul 15, 2021 5:19 pm
Forum: Support
Topic: help writing bootable Osborne disks from stream files
Replies: 27
Views: 414

Re: help writing bootable Osborne disks from stream files

From what I'm reading you want the .RAW files and a .IMG file. Well, yes, and I've been able to successfully create those I believe. Here's the command generated by the GUI from one of the log files...it looks very similar to yours, just with some extra stuff tacked-on by the GUI: dtc -l15 -f<path ...
by KennyPowers
Wed Jul 14, 2021 6:58 pm
Forum: Support
Topic: help writing bootable Osborne disks from stream files
Replies: 27
Views: 414

Re: help writing bootable Osborne disks from stream files

Try using the GUI to see how the scatter plot of a disk looks like. You should see 3 very clear horizontal lines on the tracks. If there are noise between the lines it could be either a disk that has been written to or the dump is not very good and writing it back can be a hit or miss. Interpreting...
by KennyPowers
Wed Jul 14, 2021 4:30 pm
Forum: Support
Topic: help writing bootable Osborne disks from stream files
Replies: 27
Views: 414

help writing bootable Osborne disks from stream files

I have several old disks that are still bootable in my Osborne Executive. I've dumped them to raw, preservation stream files using the KryoFlux GUI. When I write them back to disks with dtc, I get the following error when trying to boot my Osborne from the written disk: https://i.imgur.com/OtuD95W.j...