Re: [HRI-devel] Another gadget with uClinux: 4 camera server

[Rafael R. <ra...@ex...>]

Nice find Bruno, thanks for the info! I haven't heard anyone else on 
this list since I signed up...

Rafael Rivera
Extended64 | http://www.extended64.com
Blog | http://www.extended64.com/blogs/Rafael



Bruno Lopes F. Cabral wrote:

> Hello there
>
> long time, no hear. I hope everyone is OK.
>
> just buyed a new gadget that has uClinux inside,
> the Aviosys IP9100 4 video input camera server:
> http://www.aviosys.com.tw/ip9100aplus.htm
>
> the firmware ZIP file has a bin inside, get it from
> http://www.aviosys.com.tw/download/9100A_IE_V234.zip
>
> this bin have first 20 bytes of header/checksum info,
> followed by another ZIPed file (the kernel) followed
> by exactly 1MB of the image filesystem. extract parts
> with:
>
> unzip 9100A_IE_V234
> dd if=9100A_IE_V234.bin of=kernel.zip bs=1 skip=20 count=$((0x00078452))
> dd if=9100A_IE_V234.bin of=root.img bs=1 skip=$((0x00078466))
> unzip kernel && ls -l linux.bin
> mount -o loop root.img /mnt
>
> the header/checksum info of 9100A_IE_V234 is
> 0000 42 4e 45 47 01 00 00 00 01 00 00 00 52 84 07 00 |BNEG........R...|
> 0010 00 a0 0f 00                                     |. ..            |
> (note the 52840700, kernel zip length in big-endian format)
>
> strings of linux.bin file reveals the uClinux kernel version:
> Linux version 2.4.20-uc0 (root@ddr-linux) (gcc version 3.0) #959 Fri 
> Aug 20 16:20:43 HKT 2004
>
> by comparison on the other firmwares from aviosys site,
> the bytes 00a00f00 are some kind of checksum (perhaps CRC32)
> and first 12 bytes are problably the file signature for the
> device
>
> Cheers
> !3runo
>
>
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