So new version for splitting dump:
Code:
#!/bin/bash
# copyright: pcgeil
# (c) 2011 progged for GTV revue
echo "progged for gtv revue by pcgeil (c) 2011"
echo "revision 0.1"
echo ""
dumpFile="nand.dump"
outputDir="dump"
outputName=${outputDir}"/test"
# bash check if directory exists
if [ -d $outputDir ]; then
echo "directory exists"
else
echo "directory does not exists, create now directory"
mkdir $outputDir
fi
if [ "0" = "0" ]; then
# dump mbr 0x00000000-0x00200000
dd if=$dumpFile of=${outputName}".mbr" count=8192 bs=256 > /dev/null 2>&1
# dump cefdk 0x00200000-0x00a00000
dd if=$dumpFile of=${outputName}".cefdk" count=32768 bs=256 skip=8192 > /dev/null 2>&1
# dump redboot 0x00a00000-0x00c00000
dd if=$dumpFile of=${outputName}".redboot" count=8192 bs=256 skip=40960 > /dev/null 2>&1
# dump cefdk-config 0x00c00000-0x00e00000
dd if=$dumpFile of=${outputName}".cefdk-config " count=8192 bs=256 skip=49152 > /dev/null 2>&1
# dump splash 0x01000000-0x01800000
dd if=$dumpFile of=${outputName}".splash" count=16384 bs=512 skip=32768 > /dev/null 2>&1
# dump fts 0x01800000-0x01900000
dd if=$dumpFile of=${outputName}".fts" count=2048 bs=512 skip=49152 > /dev/null 2>&1
# dump recovery 0x01900000-0x02d00000
dd if=$dumpFile of=${outputName}".recovery" count=40960 bs=512 skip=51200 > /dev/null 2>&1
# dump kernel 0x02d00000-0x03200000
dd if=$dumpFile of=${outputName}".kernel" count=10240 bs=512 skip=92160 > /dev/null 2>&1
# dump boot 0x03200000-0x07200000
dd if=$dumpFile of=${outputName}".boot" count=131072 bs=512 skip=102400 > /dev/null 2>&1
# dump system 0x07200000-0x1f200000
dd if=$dumpFile of=${outputName}".system" count=786432 bs=512 skip=233472> /dev/null 2>&1
# dump data 0x1f200000-0x3fa00000
dd if=$dumpFile of=${outputName}".data" count=1064960 bs=512 skip=1019904 > /dev/null 2>&1
# dump keystore 0x3fa00000-0x3ff00000
dd if=$dumpFile of=${outputName}".keystore" count=10240 bs=512 skip=2084864 > /dev/null 2>&1
# dump bbt 0x3ff00000-0x40000000
dd if=$dumpFile of=${outputName}".bbt" count=2048 bs=512 skip=2095104 > /dev/null 2>&1
echo "dump was splitted successfully"
fi
echo ""
echo "extract repetition out of files (mbr and cefdk)"
# extract repetition of cefdk and mbr (8 times)
for i in 0 1 2 3 4 5 6 7; do
#echo "$i"
dd if=${outputName}".cefdk" of=${outputName}"_"${i}".cefdk" skip=${i} count=1 bs=262144 > /dev/null 2>&1
dd if=${outputName}".mbr" of=${outputName}"_"${i}".mbr" skip=${i} count=1 bs=262144 > /dev/null 2>&1
done
echo "compare cefdk and mbr"
# compare extraction with each other (mbr and cefdk)
for i in 1 2 3 4 5 6 7; do
diff ${outputName}"_0.cefdk" ${outputName}"_"${i}".cefdk"
diff ${outputName}"_0.mbr" ${outputName}"_"${i}".mbr"
done
echo ""
echo "extract repetition out of files (splash and fts)"
# extract repetition of splash and fts (4 times)
for i in 0 1 2 3; do
#echo "$i"
dd if=${outputName}".fts" of=${outputName}"_"${i}".fts" skip=${i} count=1 bs=262144 > /dev/null 2>&1
dd if=${outputName}".splash" of=${outputName}"_"${i}".splash" skip=${i} count=1 bs=262144 > /dev/null 2>&1
done
echo "compare splash and fts"
# compare extraction with each other (splash and fts)
for i in 1 2 3; do
diff ${outputName}"_0.fts" ${outputName}"_"${i}".fts"
diff ${outputName}"_0.splash" ${outputName}"_"${i}".splash"
done
Info:cefdk and mbr is repeated 8 times at (0x000000, 0x040000, 0x080000, 0x0C0000, 0x100000, 0x140000, 0x180000 and 0x1C0000)
fts and splash is repeated 4 times at (0x000000, 0x040000, 0x080000, 0x0C0000)
but fts is not exactly the same in my dump 0x200 to 0x20f after repetition changes
if anyone else has a dump, please validate my results
Update:If you have UART you can get an mem-dump like this:
Quote:
#mount -w -t msdos /dev/sdb1 /sdcard
# dd if=/dev/mem of=/sdcard/test-mem.dump
/dev/mem: read error: Bad address
1572864+0 records in
1572864+0 records out
805306368 bytes transferred in 236.377 secs (3406872 bytes/sec
# sync
At 0x0F0000 you find the CEFDK and at 0x800000 the recovery
the difference between nand and mem dump is that at CEFDK and recovery address, i have at offset 0x200 13 bytes written (cefdk and recovery) and afterwords a shift of 12 bytes
(just checked first 0xffff maybe there is more like this) think that this are bad blocks maybe!
