[Coco] OS-9 128MB max hard drive - /sd1

Philip Zeigler philip at zeiglers.net
Fri Jan 23 14:21:00 EST 2015


I gave up on trying to do it all from the CoCo.  Since the format command is obviously broken with CoCoSDC in the recent builds.

I’ve resorted to using toolshed’s os9 format command to create the blank images for me (os9 format -e).  I created a blank 40 track DSDD image and a 128MB hard disk image.  I was then able to use the mb.floppy script to create a new boot disk with all of the drivers I wanted (it fails on the format, but the image is pre-formate so that doesn’t really matter) on the 40DSDD image.   Setting drive0 to the new boot disk and drive1 to the 128MB image, I have what I need.

It would be really nice to find out what has broken the format command in the latest builds.

Philip


> On Jan 23, 2015, at 1:11 PM, Allen Huffman <alsplace at pobox.com> wrote:
> 
>> On Jan 23, 2015, at 11:44 AM, Gene Heskett <gheskett at wdtv.com> wrote:
>> Basic09 is probably the easiest wat to do it. Check the bits in the open 
>> perms, you want read+writ=update.  Then you should be able to write past 
>> the end of the current file.
>> 
>> Subject to the disk size spec'ed in the descriptor of course.
> 
> Well heck. I wonder what I am doing wrong. I *thought* I could just open "/sd1@" raw and seek to the sector I wanted and write something, but when I do that, I see the CoCoSDC blink for some time (Oh! It must be working!) then after that, the drive is corrupted (ERROR #214 when I try to access it) and not expanded all the way.
> 
> Hopefully it's user error. Unless the SDC firmware doesn't work the same way for LBA access???
> 
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