[Coco] coco sdc?

[Gene Heskett]

On Wednesday 29 April 2020 12:26:40 Robert Gault wrote:

> Gene,
>
> I think you are confusing Allen's comment about disk formats with the
> OS-9 format.

Entirely probable since they are 2 totally different critters.  Can I 
blame it on oldtimers?
>
> Allen and Gene, the format required on the SD card is FAT16 or FAT32.
> These are Windows formats and may or may not be available on a Linux
> system.

no problem. vfat seems to handle either.

> So an alternative, if Linux can't handle FAT32 and a Windows PC is not
> available, would be to mail someone a 2GB SD card and have them load
> the card with a desired selection of ROM images, directories with disk
> images, and file contents.
>
> I've looked at my card with a hex editor and it contains:
> 00000000 EB 58 90 4D 53 44 4F 53 35 2E 30 00 02 10 24 00
> .X.MSDOS5.0...$. 00000010 02 00 00 00 00 F8 00 00 3F 00 FF 00 00 20 00
> 00 ........?.... .. 00000020 00 E0 CD 01 AE 39 00 00 00 00 00 00 02 00
> 00 00 .....9.......... 00000030 01 00 06 00 00 00 00 00 00 00 00 00 00
> 00 00 00 ................ 00000040 00 00 29 3D DE EA F4 4E 4F 20 4E 41
> 4D 45 20 20 ..)=...NO NAME 00000050 20 20 46 41 54 33 32 20 20 20 33
> C9 8E D1 BC F4   FAT32   3..... 00000060 7B 8E C1 8E D9 BD 00 7C 88 4E
> 02 8A 56 40 B4 08 {......|.N..V at .. 00000070 CD 13 73 05 B9 FF FF 8A F1
> 66 0F B6 C6 40 66 0F ..s......f... at f. 00000080 B6 D1 80 E2 3F F7 E2 86
> CD C0 ED 06 41 66 0F B7 ....?.......Af.. 00000090 C9 66 F7 E1 66 89 46
> F8 83 7E 16 00 75 38 83 7E .f..f.F..~..u8.~ 000000A0 2A 00 77 32 66 8B
> 46 1C 66 83 C0 0C BB 00 80 B9 *.w2f.F.f....... 000000B0 01 00 E8 2B 00
> E9 48 03 A0 FA 7D B4 7D 8B F0 AC ...+..H...}.}... 000000C0 84 C0 74 17
> 3C FF 74 09 B4 0E BB 07 00 CD 10 EB ..t.<.t......... 000000D0 EE A0 FB
> 7D EB E5 A0 F9 7D EB E0 98 CD 16 CD 19 ...}....}....... 000000E0 66 60
> 66 3B 46 F8 0F 82 4A 00 66 6A 00 66 50 06 f`f;F...J.fj.fP. 000000F0 53
> 66 68 10 00 01 00 80 7E 02 00 0F 85 20 00 B4 Sfh.....~.... .. 00000100
> 41 BB AA 55 8A 56 40 CD 13 0F 82 1C 00 81 FB 55 A..U.V at ........U
> 00000110 AA 0F 85 14 00 F6 C1 01 0F 84 0D 00 FE 46 02 B4
> .............F.. 00000120 42 8A 56 40 8B F4 CD 13 B0 F9 66 58 66 58 66
> 58 B.V at ......fXfXfX 00000130 66 58 EB 2A 66 33 D2 66 0F B7 4E 18 66 F7
> F1 FE fX.*f3.f..N.f... 00000140 C2 8A CA 66 8B D0 66 C1 EA 10 F7 76 1A
> 86 D6 8A ...f..f....v.... 00000150 56 40 8A E8 C0 E4 06 0A CC B8 01 02
> CD 13 66 61 V at ............fa 00000160 0F 82 54 FF 81 C3 00 02 66 40 49
> 0F 85 71 FF C3 ..T.....f at I..q.. 00000170 4E 54 4C 44 52 20 20 20 20 20
> 20 00 00 00 00 00 NTLDR      ..... 00000180 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00 ................ 00000190 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00 00 ................ 000001A0 00 00 00 00 00 00 00
> 00 00 00 00 00 0D 0A 52 65 ..............Re 000001B0 6D 6F 76 65 20 64
> 69 73 6B 73 20 6F 72 20 6F 74 move disks or ot 000001C0 68 65 72 20 6D
> 65 64 69 61 2E FF 0D 0A 44 69 73 her media....Dis 000001D0 6B 20 65 72
> 72 6F 72 FF 0D 0A 50 72 65 73 73 20 k error...Press 000001E0 61 6E 79
> 20 6B 65 79 20 74 6F 20 72 65 73 74 61 any key to resta 000001F0 72 74
> 0D 0A 00 00 00 00 00 AC CB D8 00 00 55 AA rt............U.
>
> The above pertains only to the card format not contents!
>
> Robert

My card is blank, may not even have a dos partition table.
>
> Gene Heskett wrote:
> > On Wednesday 29 April 2020 10:49:32 Allen Huffman wrote:
> >> On Apr 29, 2020, at 8:38 AM, Gene Heskett <gheskett at shentel.net> 
wrote:
> >>> SDC, doesn't work, never has. Very early rev C
> >
> ><snip>
> >
> >> Also, the SD card needs to be right. I think I have heard up to
> >> 32MB
> >
> > Its a 2Gig sd card, so nitros9 would use a cluster size of 32
> > sectors. NBD. Theoretically, up to 4GB can be handled by nitros9.
> >
> >> but it has to be formatted the proper way using an older disk
> >> format, and not NTFS.
> >
> > I can't format any disk, not enough system ram so it crashes. I have
> > looked at this sd card with a hex editor and theres only a dos
> > partition table, recognized as /dev/sde1 on this machine
> >
> ><snip>


Cheers, Gene Heskett
-- 
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