[Q] How to flash boot.img in shell? (from phone's sdcard) - Android Q&A, Help & Troubleshooting

some kernel app can download and flash boot.img, restarts, how can I do that in terminal? (without the need of adb or Recovery... save hell lots of time)

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I'm afraid thats impossible.

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kurotsugi said:
I'm afraid thats impossible.
Click to expand...
Click to collapse
so this are dark magic?
Code:
#!/sbin/bb/busybox ash
# lkflash - flash latest leanKernel
#
# author - [email protected]
#
BB="/sbin/bb/busybox"
STABLE="http://imoseyon.host4droid.com/latest"
EXP180="http://imoseyon.host4droid.com/exp/latest180"
EXP230="http://imoseyon.host4droid.com/exp/latest230"
CUR=`$BB uname -a | $BB awk -F'-' '{ print \$3 }'`
while [ 1 ]; do
echo
echo "leanKernel flasher"
echo "------------------"
echo "1) latest stable (recommended)"
echo "2) latest experimental 180mhz-1.65ghz (notrim)"
echo "3) latest experimental 230mhz-1.65ghz (notrim)"
echo "4) check/display versions"
echo "9) latest stable franco (warning: no md5 check)"
echo
echo "FLASH AT YOUR OWN RISK. I'm not responsible for my mistakes or yours. ;)"
echo
echo -n "Please enter a number between 1 and 4 (or press enter to exit): "
read option
case $option in
1)
$BB wget -q -O /sdcard/lk $STABLE
echo; echo -n "Downloading stable "
break
;;
2)
$BB wget -q -O /sdcard/lk $EXP180
echo; echo -n "Downloading experimental 180mhz (notrim) "
break
;;
3)
$BB wget -q -O /sdcard/lk $EXP230
echo; echo -n "Downloading experimental 230mhz (notrim) "
break
;;
4)
echo "Please wait..."
vstable=`$BB wget -q -O - $STABLE | $BB awk '{ print \$3 }'`
v180=`$BB wget -q -O - $EXP180 | $BB awk '{ print \$3 }'`
v230=`$BB wget -q -O - $EXP230 | $BB awk '{ print \$3 }'`
echo; echo ">>> Current version: $CUR, Latest stable: $vstable, Exp: $v180 $v230"
sleep 2
;;
9)
$BB wget -q -O /sdcard/fboot.img http://minooch.com/franciscofranco/Galaxy%20Nexus/nightlies/appfiles/boot.img
$BB dd if=/sdcard/fboot.img of=/dev/block/platform/omap/omap_hsmmc.0/by-name/boot 2> /dev/null
echo "Latest Franco Kernel flashed. Reboot when you're ready."
exit
;;
*)
echo "BYE"
exit
;;
esac
done
[ ! -s "/sdcard/lk" ] && exit
MD5=`$BB awk '{ print \$2 }' /sdcard/lk`
VER=`$BB awk '{ print \$3 }' /sdcard/lk`
if [ "$CUR" == "$VER" ]; then
echo
echo "Aborted. You're already running $CUR."
exit
fi
echo "v$VER. Please wait..."
$BB wget -q -O /sdcard/lkboot.img `$BB awk '{ print \$1 }' /sdcard/lk`
[ ! -s "/sdcard/lkboot.img" ] && exit
SUM=`$BB md5sum /sdcard/lkboot.img | $BB awk '{ print \$1 }'`
echo
if [ "$MD5" == "$SUM" ]; then
echo "Download finished. Checksum verified. Flashing kernel to boot partition..."
$BB dd if=/sdcard/lkboot.img of=/dev/block/platform/omap/omap_hsmmc.0/by-name/boot 2> /dev/null
echo; echo "leanKernel $VER flashed! Reboot when you're ready to run new kernel."
else
echo "md5sum check failed - please try again."
fi