Subject: EADFS and Linux

From: Sergio Monesi <[email-masked]>
Date: Wed, 03 Dec 1997 21:42:58 +0100

Hello,
I just bought a 3.2Gb disc, I'd like to partition into two RISC OS partitions
and one Linux partition. I tried to use EADFS without much success, ie.
PartMan produces strange results if I try to use it on any EADFS partition
(both 6, a RISC OS disc, and 7, a DOS disc/empty partition) and corrupts
EADFS if I try to use it on the ADFS partition (which is the first EADFS
partition also). 

>From what I can tell, EADFS uses a RISCiX partition table stored at the
beginning of the disc (the bootblock seems to point here), this is the dump:

00000000 : 00 00 00 00 00 00 00 00 00 00 00 00 00 70 12 00 : .............p..
00000010 : 00 00 00 00 52 69 73 63 4F 73 3A 00 00 00 00 00 : ....RiscOs:.....
00000020 : 00 00 00 00 10 71 12 00 F0 BE 2B 00 00 00 00 00 : .....q..ð¾+.....
00000030 : 52 69 73 63 4F 73 3A 00 00 00 00 00 00 00 00 00 : RiscOs:.........
00000040 : 40 33 3E 00 C0 04 22 00 00 00 00 00 44 4F 53 44 : @3>.À.".....DOSD
00000050 : 69 73 63 3A 00 00 00 00 00 00 00 00 00 39 60 00 : isc:.........9`.
00000060 : 00 00 00 00 00 00 00 00 52 69 73 63 4F 73 3A 00 : ........RiscOs:.
00000070 : 00 00 00 00 00 00 00 00 00 39 60 00 00 00 00 00 : .........9`.....
00000080 : 00 00 00 00 52 69 73 63 4F 73 3A 00 00 00 00 00 : ....RiscOs:.....
00000090 : 00 00 00 00 00 39 60 00 00 00 00 00 00 00 00 00 : .....9`.........
000000A0 : 52 69 73 63 4F 73 3A 00 00 00 00 00 00 00 00 00 : RiscOs:.........
000000B0 : 00 39 60 00 00 00 00 00 00 00 00 00 52 69 73 63 : .9`.........Risc
000000C0 : 4F 73 3A 00 00 00 00 00 00 00 00 00 00 39 60 00 : Os:..........9`.
000000D0 : 00 00 00 00 00 00 00 00 52 69 73 63 4F 73 3A 00 : ........RiscOs:.
000000E0 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 : ................
000000F0 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 : ................
00000100 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 : ................
00000110 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 : ................
00000120 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 : ................
00000130 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 : ................
00000140 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 : ................
00000150 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 : ................
00000160 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 : ................
00000170 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 : ................
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 00 00 00 00 : ................
000001B0 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 : ................
000001C0 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 : ................
000001D0 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 : ................
000001E0 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 : ................
000001F0 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 2B : ...............+
00000200 :                                                 :

If I boot ARMLinux, it doesn't seem to recognise any partition on that drive
so I immediately gave up.

What should I do now? I bought this disc mainly for running ARMLinux but I
don't want to waste a lot of space by formatting it in a single (2Gb) RISC OS
partition.

Russell, if you want to experiment with my disc just send me any code (even
if dangerous!), I cannot do anything with the disc until I know if I can use
it this way so I am really desperate.

If ARMLinux could recognise a partition called 'Linux:' or something similar
in the RISCiX partition, then I can simply get rid of that 'DOSDisc:'...

Regards,
Sergio 

-- 
Sergio Monesi...         \ . . . \  Cracking RC5-64 with a StrongARM RiscPC
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