[Coco] partial OS9 boot from hard drive (back on topic)

Vern Burke vburke at skow.net
Sun Aug 28 14:59:06 EDT 2005


George:
    No luck. I even went back and created a virgin copy of the hard 
drive descriptor as dd, all the descriptors match perfectly. The boot 
still gets to OS9 BOOT, accesses the hard drive, then crashes the machine.

Vern


George Ramsower wrote:
> Vern,
> 
> I think you would be better off changing a copy of the  /h0 device 
> descriptor to /dd. You already know the /h0 dd works.
> To set/see the settings on the device descriptor that is in the config 
> directory, use
> dmode -ddh0.dd.scsi (or whatever the file name is you will be using.
> The difference is the - and the /
> Until you get it to work, you can't dmode it in memory, yes?
> 
> Here's what MY descriptors look like and how they differ..
> Your descriptor will be VERY different than mine, but when you compare 
> YOUR /h0 and the /dd descriptors, the only differences should be as mine 
> are different from each  other.
> 
> 
> OS9[T2]:dump ddh0.dd.scsi
> 
> Addr   0 1  2 3  4 5  6 7  8 9  A B  C D  E F   0 2 4 6 8 A C E
> ----  ---- ---- ---- ---- ---- ---- ---- ----  ----------------
> 0000  87CD 0031 0021 F189 DD00 2400 27FF 07FF  .   M.1.!q.].$.'...
> 0010  740F 0100 0080 8002 6704 0100 3400 3401        t.......g...4.4.
> 0020  0864 E401 5242 C653 4353 4953 59D3 6B30      .dd.RBFSCSISYSk0
> 0030  61                                       a
> 
> OS9[T2]:dump h0.dd.scsi
> 
> Addr   0 1  2 3  4 5  6 7  8 9  A B  C D  E F  0 2 4 6 8 A C E
> ----  ---- ---- ---- ---- ---- ---- ---- ----  ----------------
> 0000  87CD 0031 0021 F189 DD00 2400 27FF 07FF        .M.1.!q.].$.'...
> 0010  740F 0100 0080 8002 6704 0100 3400 3401        t.......g...4.4.
> 0020  0868 B001 5242 C653 4353 4953 59D3 03C5        .h0.RBFSCSISYS.E
> 0030  D0
> 
> I think this is the area that needs work on your system. I also went 
> through the same thing when I wanted to use the hard drive as the 
> default drive. However, I got lucky and got the descriptor right the 
> first time. My problem was finding out what files had to be on the 
> floppy and on the hard drive.
> 
> The driver is working, the /h0 is working, but the /dd is not. You have 
> all the files where they need to be and this is the only problem that I 
> can see.
> 
> 
> 
> ----- Original Message ----- From: "Vern Burke" <vburke at skow.net>
> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
> Sent: Sunday, August 28, 2005 9:26 AM
> Subject: Re: [Coco] partial OS9 boot from hard drive (back on topic)
> 
> 
>> Robert:
>>    These are the exact same descriptors that work fine with /dd as the 
>> floppy. I changed the names by doing a rename with ezgen.
>>
>> Vern
>>
>>
> 



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