MISC
bgrep
file=vmlinuz-3.1.0-1-orion5x strings $file | grep -i lzma #| LZMA data is corrupt
xxd /local/rootfs-debian-arm-lenny/usr/lib/locales-all/supported.tar.lzma | head #| 0000000: 5d00 0080 00ff ffff ffff ffff ff00 170b ]...............
# header="1f8b0800" # gzip # header="425a6839" # bzip2 header="fd377a585a00" # xz header="5d0000" # lzma bgrep "$header" $file
# offset=`grep -P -a -b -m 1 --only-matching $'\x5d\x00\x00' $file | cut -f 1 -d :` offset=$(bgrep "$header" $file | tail -n 1 | cut -d' ' -f 2) #TODO: LooP offset=$(printf "%d" 0x$offset) # dd if=$file bs=1 skip=$offset | lzcat > tmp-$offset.out # lzcat: Decoder error
size=$(wc -c "$file" | cut -f 1 -d' ') # 1471040 for i in $(seq 1 $size) ; do dd if=$file bs=1 skip=$i | lzcat > tmp/$i.tmp && mv tmp/$i.tmp tmp/$i.out; done
dd if=vmlinuz-3.1.0-1-orion5x skip=7193 bs=1 | xxd | head -n 1 0000000: 5d00 0000 02ff ffff ffff ffff ff00 69bc ].............i.
strings tmp.out # vmlinux md5=cbd611f32d572c5aec31b22809a2ed35 #| %s version %s (Debian 3.1.1-1) (ben@decadent.org.uk) (gcc version 4.6.2 (Debian 4.6.2-4) ) %s #| Linux version 3.1.0-1-orion5x (Debian 3.1.1-1) (ben@decadent.org.uk) (gcc version 4.6.2 (Debian 4.6.2-4) ) #1 Tue Nov 15 06:07:47 UTC 2011
file=uImage.buffalo # vmlinux md5=cbd611f32d572c5aec31b22809a2ed35 #| %s version %s (Debian 3.1.1-1) (ben@decadent.org.uk) (gcc version 4.6.2 (Debian 4.6.2-4) ) %s #| Linux version 3.1.0-1-orion5x (Debian 3.1.1-1) (ben@decadent.org.uk) (gcc version 4.6.2 (Debian 4.6.2-4) ) #1 Tue Nov 15 06:07:47 UTC 2011
#file=vmlinuz-3.1.0-1-orion5x-skip_7193.out # ToDo #header=454c46 #offset=$(bgrep "$header" $file | head -n 1 | cut -d' ' -f 2) #TODO: LooP #offset=$(printf "%d" 0x$offset) # #dd if=$file skip=$offset bs=1 | nm --demangle /dev/stdin
echo "==> searching for gzip header in $zImage" skip=`grep -P -a -b -m 1 --only-matching $'\x1F\x8B\x08' $zImage | cut -f 1 -d :`
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