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SubjectRe: AA55 signature at the end of Linux bootsector
by looking at /dev/sda you are looking at MBR. It is /dev/sdaX you should
be looking at to see the bootsector of a partition.

Regards,
------
Tigran A. Aivazian | http://www.sco.com/
Escalations Research Group | Email: tigran@sco.com
Santa Cruz Operation Ltd |
On Wed, 8 Jul 1998, Richard B. Johnson wrote:

> On Wed, 8 Jul 1998, Tigran Aivazian wrote:
>
> > Hello guys,
> >
> > Just a suggestion: would it not be nice to have a 0xAA55 signature at the
> > end of the bootsector (NOT an MBR!) of the Linux root partition so that
> > commercial bootloaders (e.g. the one that comes with UnixWare 7) could
> > load it just as easily as they load dos/windows stuff instead of giving
> > "Missing operating system" error?
> >
> > Btw, just to confirm, am I right in assuming that LILO does put AA55
> > signature at the end of bootsector if installed in a partition instead of
> > an MBR?
>
> It puts it on mine.
>
> Script started on Wed Jul 8 09:03:50 1998
> # od -x /dev/sda | more
> 0000000 69eb 494c 4f4c 0001 0014 ffff 001b 0000
> 0000020 00bf b906 0309 5b82 0a01 8203 015b 0308
> 0000040 5b82 0001 0000 0000 0000 0c00 8203 015b
> 0000060 032f 0b82 3001 8203 010b 0331 0b82 3201
> 0000100 8203 010b 0333 0b82 3401 8203 010b 0335
> 0000120 0b82 3601 8203 010b 0000 0000 0000 0000
> 0000140 0000 0000 0000 0000 0000 b800 07c0 d88e
> 0000160 068c 0066 3689 0064 1e89 0068 1688 006a
> 0000200 00b8 8e9a b9c0 0100 f629 ff29 f3fc eaa5
> 0000220 0094 9a00 8efa 8ed8 bcc0 b000 00b8 8e90
> 0000240 fbd0 0db0 57e8 b000 e80a 0052 4cb0 4de8
> 0000260 be00 0030 00bb fc10 89ad adc1 c289 c809
> 0000300 2074 e846 0043 0672 c381 0200 eaeb b050
> 0000320 e820 002a 8858 e8e0 0012 c031 c288 13cd
> 0000340 cfeb 49b0 17e8 ea00 0000 9b00 c050 04e8
> 0000360 01e8 5800 0f24 3004 3a3c 0272 0704 ff30
> 0000400 0eb4 10cd 5ac3 5b59 f6c3 40c2 5274 e280
> 0000420 53bf 5251 08b4 13cd eb72 f388 885a 6d16
> 0000440 8801 30f2 88f6 58f7 8651 d0cd d0c5 80c5
> 0000460 03e5 0e89 016b 8359 3fe1 f1f7 c2fe 1688
> 0000500 016e d231 f743 88f3 8ad6 6d16 3b01 6b06
> 0000520 7701 8613 d0c4 d0c8 0ac8 6e06 8901 5bc1
> 0000540 01b8 cd02 c313 315b f9c0 00c3 0000 0000
> --More--
> 0000560 0000 0000 0000 0000 0000 0000 0000 0000
> 0000660 0000 0000 0000 0000 0000 0000 0000 0180
> 0000700 0001 7f06 ff60 0020 0000 ffe0 001f 0000
> 0000720 0081 7f05 fee0 0000 0020 f000 001f 0000
> 0000740 0000 0000 0000 0000 0000 0000 0000 0000
> 0000760 0000 0000 0000 0000 0000 0000 0000 aa55
> ^^^^____ Right here
> 0001000 0000 0000 0000 0000 0000 0000 0000 0000
> *
> # exit
> exit
>
> Script done on Wed Jul 8 09:04:18 1998
>
> Cheers,
> Dick Johnson
> ***** FILE SYSTEM MODIFIED *****
> Penguin : Linux version 2.1.108 on an i586 machine (66.15 BogoMips).
> Warning : It's hard to remain at the trailing edge of technology.
>


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