[Coco] Another MESS Question

Bob Devries bdevries at gil.com.au
Sun Dec 25 16:47:41 EST 2005 

More on VHD disk.

OK, I created a new .vhd file, and tried to format it. It went through the 
usual procedure, and when it got to the verify stage, the format programme 
quit with bad system sector -- error 242.

Maybe this is a bug in MESS 102?
--
Regards, Bob Devries, Dalby, Queensland, Australia

Isaiah 50:4 The sovereign Lord has given me
the capacity to be his spokesman,
so that I know how to help the weary.

website: http://www.home.gil.com.au/~bdevasl
my blog: http://bdevries.invigorated.org/

----- Original Message ----- 
From: "Bob Devries" <bdevries at gil.com.au>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Monday, December 26, 2005 7:33 AM
Subject: Re: [Coco] Another MESS Question


> Robert,
> I in fact did try to access the VHD using ded /h0@ to try to write past 
> the end of what is used now, but I received the error 242. ded steadfastly 
> refuses to go further than that sector.
>
> I will create a new blank vhd file, and see if that works. Maybe something 
> is wrong with the file I have, I dunno.
> --
> Regards, Bob Devries, Dalby, Queensland, Australia
>
> Isaiah 50:4 The sovereign Lord has given me
> the capacity to be his spokesman,
> so that I know how to help the weary.
>
> website: http://www.home.gil.com.au/~bdevasl
> my blog: http://bdevries.invigorated.org/
>
> ----- Original Message ----- 
> From: "Robert Gault" <robert.gault at worldnet.att.net>
> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
> Sent: Sunday, December 25, 2005 11:52 PM
> Subject: Re: [Coco] Another MESS Question
>
>
>> The image files will only grow if you write "passed the end" if the 
>> image. That means you need a version of format or DSKINI which actually 
>> writes to the image under the conditions of MESS.
>>
>> Keeping OS-9 in mind as the prime OS, it is imperative that the .vhd 
>> image be formatted before anything is written to the disk. The catch21 is 
>> that no physical formatting takes place, so nothing gets written past the 
>> end of the root directory. So, now what?!
>>
>> There are three approaches for extending the .vhd to its full size before 
>> OS-9 use. 1) Use RGBDOS for the emulator and dskini any virtual Disk 
>> Basic drive. 2) Boot OS-9 from a floppy that has .vhd access, open /h0@, 
>> and write a byte at the end of LSN$59FFF. 3) Use a PC utility to populate 
>> the full $5A000 sectors with some character, ex. $E5.
>>
>> Now the .vhd will be the correct size but filled with junk. If you like 
>> pristine disks and don't want to look at leftover PC files, you will need 
>> to write a short OS-9 program, probably in Basic09, to "wash" every 
>> sector passed the root directory.
>>
>> Bob Devries wrote:
>>> more on that Virtual HD question... the VHD file is exactly 17291 
>>> sectors long on the PC hard drive. Even though the /H0 descriptor says 
>>> it is 90 MB, it isn't. Is it supposed to grow dynamically? If it is, it 
>>> isn't doing it.
>>>
>>> Here's the ident of EMUDSK and H0:
>>>
>>> Header for:  EmuDsk
>>> Module size: $00BC    #188
>>> Module CRC:  $85815B (Good)
>>> Hdr parity:  $66
>>> Exec. off:   $0021    #33
>>> Data Size:   $00FF    #255
>>> Edition:     $01      #1
>>> Ty/La At/Rv: $E1 $81
>>> Dev Dvr mod, 6809 obj, re-en, R/O
>>>
>>> Header for:  H0
>>> Module size: $002F    #47
>>> Module CRC:  $BE79DA (Good)
>>> Hdr parity:  $CB
>>> Edition:     $52      #82
>>> Ty/La At/Rv: $F1 $81
>>> Dev Dsc mod, 6809 obj, re-en, R/O
>>>
>>> -- 
>>> Regards, Bob Devries, Dalby, Queensland, Australia
>>>
>>> Isaiah 50:4 The sovereign Lord has given me
>>> the capacity to be his spokesman,
>>> so that I know how to help the weary.
>>>
>>> website: http://www.home.gil.com.au/~bdevasl
>>> my blog: http://bdevries.invigorated.org/
>>>
>>> ----- Original Message ----- From: "Bob Devries" <bdevries at gil.com.au>
>>> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
>>> Sent: Sunday, December 25, 2005 8:01 PM
>>> Subject: Re: [Coco] Another MESS Question
>>>
>>>
>>>> It seems that I'm not able to read past sector $438B (17291) using ded. 
>>>> If I try to, I get error 242, which is write protect.
>>>>
>>>> Any comments?
>>>> -- 
>>>> Regards, Bob Devries, Dalby, Queensland, Australia
>>>>
>>>> Isaiah 50:4 The sovereign Lord has given me
>>>> the capacity to be his spokesman,
>>>> so that I know how to help the weary.
>>>>
>>>> website: http://www.home.gil.com.au/~bdevasl
>>>> my blog: http://bdevries.invigorated.org/
>>>>
>>>> ----- Original Message ----- From: "Bob Devries" <bdevries at gil.com.au>
>>>> To: <coco at maltedmedia.com>
>>>> Sent: Saturday, December 24, 2005 4:49 PM
>>>> Subject: [Coco] Another MESS Question
>>>>
>>>>
>>>>> Is it possible to write protect the disks in MESS? If so, how is it 
>>>>> done?
>>>>>
>>>>> If not.... why am I getting error 242 when I try to copy files to the 
>>>>> virtual HD?
>>>>> -- 
>>>>> Regards, Bob Devries, Dalby, Queensland, Australia
>>>>>
>>>>> Isaiah 50:4 The sovereign Lord has given me
>>>>> the capacity to be his spokesman,
>>>>> so that I know how to help the weary.
>>>>>
>>>>> website: http://www.home.gil.com.au/~bdevasl
>>>>> my blog: http://bdevries.invigorated.org/
>>>>>
>>>>>
>>>>> -- 
>>>>> Coco mailing list
>>>>> Coco at maltedmedia.com
>>>>> http://five.pairlist.net/mailman/listinfo/coco
>>>>>
>>>>>
>>>>> -- 
>>>>> No virus found in this incoming message.
>>>>> Checked by AVG Free Edition.
>>>>> Version: 7.1.371 / Virus Database: 267.14.7/214 - Release Date: 
>>>>> 23/12/2005
>>>>>
>>>>>
>>>>
>>>>
>>>> -- 
>>>> Coco mailing list
>>>> Coco at maltedmedia.com
>>>> http://five.pairlist.net/mailman/listinfo/coco
>>>>
>>>>
>>>> -- 
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>>>> Checked by AVG Free Edition.
>>>> Version: 7.1.371 / Virus Database: 267.14.7/214 - Release Date: 
>>>> 23/12/2005
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>>>
>>>
>>
>> -- 
>> Coco mailing list
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>>
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>> Checked by AVG Free Edition.
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>
>
> -- 
> Coco mailing list
> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco
>
>
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> Checked by AVG Free Edition.
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