[syslinux] Trouble with Superfloppy format

Sven Geggus lists at fuchsschwanzdomain.de
Thu Nov 18 00:48:29 PST 2010


Shao Miller <Shao.Miller at yrdsb.edu.on.ca> wrote:

> I'm not sure I understand what that has to do with the media bytes in 
> the boot sector.  Could you be interested in changing those bytes? 

Shure, if this will help.

> You could use 'bvi' or some other hex-editor, perhaps.  You could share
> your boot-sector with:
> 
>   dd if=/dev/sdb of=bootsect.bin count=1
>   hexdump -C bootsect.bin > bootsect.txt

Looks like this:

00000000  eb 58 90 53 59 53 4c 49  4e 55 58 00 02 20 20 00  |.X.SYSLINUX..  .|
00000010  02 00 00 00 00 f8 00 00  20 00 40 00 00 00 00 00  |........ . at .....|
00000020  00 00 c8 03 80 3c 00 00  00 00 00 00 02 00 00 00  |.....<..........|
00000030  01 00 06 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000040  00 00 29 e3 8a e4 d4 20  20 20 20 20 20 20 20 20  |..)....         |
00000050  20 20 46 41 54 33 32 20  20 20 fa fc 31 c9 8e d1  |  FAT32   ..1...|
00000060  bc 76 7b 52 06 57 1e 56  8e c1 b1 26 bf 78 7b f3  |.v{R.W.V...&.x{.|
00000070  a5 8e d9 bb 78 00 0f b4  37 0f a0 56 20 d2 78 1b  |....x...7..V .x.|
00000080  31 c0 b1 06 89 3f 89 47  02 f3 64 a5 8a 0e 18 7c  |1....?.G..d....||
00000090  88 4d bc 50 50 50 50 cd  13 eb 5c 8b 55 aa 8b 75  |.M.PPPP...\.U..u|
000000a0  a8 c1 ee 04 01 f2 81 fa  b7 07 73 2b f6 45 b4 7f  |..........s+.E..|
000000b0  75 25 38 4d b8 74 20 66  3d 21 47 50 54 75 10 80  |u%8M.t f=!GPTu..|
000000c0  7d b8 ed 75 0a 66 ff 75  ec 66 ff 75 e8 eb 0f 51  |}..u.f.u.f.u...Q|
000000d0  51 66 ff 75 bc eb 07 51  51 66 ff 36 1c 7c b4 08  |Qf.u...QQf.6.|..|
000000e0  cd 13 72 13 20 e4 75 0f  c1 ea 08 42 89 16 1a 7c  |..r. .u....B...||
000000f0  83 e1 3f 89 0e 18 7c fb  bb aa 55 b4 41 8a 16 74  |..?...|...U.A..t|
00000100  7b cd 13 72 10 81 fb 55  aa 75 0a f6 c1 01 74 05  |{..r...U.u....t.|
00000110  c6 06 45 7d 00 66 b8 c0  7c 01 00 66 ba 00 00 00  |..E}.f..|..f....|
00000120  00 bb 00 7e e8 10 00 66  81 3e 24 7e a7 0d 56 72  |...~...f.>$~..Vr|
00000130  75 76 ea 38 7e 00 00 66  03 06 60 7b 66 13 16 64  |uv.8~..f..`{f..d|
00000140  7b b9 10 00 eb 2b 66 52  66 50 06 53 6a 01 6a 10  |{....+fRfP.Sj.j.|
00000150  89 e6 66 60 b4 42 e8 7f  00 66 61 8d 64 10 72 01  |..f`.B...fa.d.r.|
00000160  c3 66 60 31 c0 e8 70 00  66 61 e2 da c6 06 45 7d  |.f`1..p.fa....E}|
00000170  2b 66 60 66 0f b7 36 18  7c 66 0f b7 3e 1a 7c 66  |+f`f..6.|f..>.|f|
00000180  f7 f6 31 c9 87 ca 66 f7  f7 66 3d ff 03 00 00 77  |..1...f..f=....w|
00000190  17 c0 e4 06 41 08 e1 88  c5 88 d6 b8 01 02 e8 37  |....A..........7|
000001a0  00 66 61 72 01 c3 e2 c9  31 f6 8e d6 bc 68 7b 8e  |.far....1....h{.|
000001b0  de 66 8f 06 78 00 be df  7d e8 09 00 31 c0 cd 16  |.f..x...}...1...|
000001c0  cd 19 f4 eb fd 66 60 ac  20 c0 74 09 b4 0e bb 07  |.....f`. .t.....|
000001d0  00 cd 10 eb f2 66 61 c3  8a 16 74 7b cd 13 c3 42  |.....fa...t{...B|
000001e0  6f 6f 74 20 65 72 72 6f  72 0d 0a 00 00 00 00 00  |oot error.......|
000001f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 55 aa  |..............U.|
00000200

Sven

-- 
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Safety, deserve neither Liberty nor Safety (Benjamin Franklin)

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