# using Ubuntu laptop with lots of disk space
git clone git://github.com/linux-wmt/linux-vtwm
# roughly an hour depending on network
cd linux-vtwm
make ARCH=arm menuconfig
# see separate kernel configuration notes

time make ARCH=arm zImage modules CROSS_COMPILE=arm-linux-gnueabihf-
make ARCH=arm dtbs CROSS_COMPILE=arm-linux-gnueabihf-
# can be 2 hours or more
cat arch/arm/boot/zImage arch/arm/boot/dts/wm8850-w70v2.dtb \
> arch/arm/boot/zImage_w_dtb
mkimage -A arm -O linux -T kernel -C none -a 0x8000 \
-e 0x8000 -n "My Linux" -d arch/arm/boot/zImage_w_dtb uzImage.bin

# plug in 32GB SD card: 62333952 sectors
# for different sizes of SD card, change 62333951 below
SDCARD=/dev/mmcblk0
# double-check that $SDCARD is ready to be wiped
parted ${SDCARD}
unit s
mklabel msdos
mkpart primary 8192 262143
mkpart primary 262144 2359295
mkpart primary 2359296 62333951
quit
# unplug SD card; replug SD card
mkfs.vfat -F 32 ${SDCARD}p1
mkswap ${SDCARD}p2
time mkfs.ext3 -N 10485760 ${SDCARD}p3
# 17 minutes

aptitude install debootstrap debian-archive-keyring debian-ports-archive-keyring
MOUNT=/root/sdcard
mkdir -p $MOUNT
mount ${SDCARD}p3 $MOUNT
time debootstrap --arch armhf --foreign --verbose \
--include strace,sudo,less,screen,openssh-server,vim,ntp,git,subversion \
wheezy $MOUNT http://ftp.us.debian.org/debian
# ~20 minutes
time make ARCH=arm INSTALL_MOD_PATH=$MOUNT modules_install
time umount $MOUNT
# ~10 minutes

mount ${SDCARD}p1 $MOUNT
(
  echo mmcinit 0
  echo fatload mmc 0 0 FirmwareInstall/uzImage.bin
  echo setenv bootargs mem=448M \
    root=/dev/mmcblk0p3 rootwait noinitrd rw init=/bin/bash
  echo bootm 0
) > /root/wmt_scriptcmd.in
mkimage -A arm -O linux -T script -C none -a 1 -e 0 -n "Created by Win32" \
-d /root/wmt_scriptcmd.in $MOUNT/wmt_scriptcmd
cp $MOUNT/wmt_scriptcmd $MOUNT/scriptcmd
mkdir -p $MOUNT/FirmwareInstall
cp $MOUNT/wmt_scriptcmd $MOUNT/FirmwareInstall/autorun.1.wmt
cp uzImage.bin $MOUNT/FirmwareInstall
umount $MOUNT

# unplug SD card, plug into netbook, boot
# "I have no name!@(none):/#"
export PATH
export HOME=/root
export USER=root
rm -r /var/run
time debootstrap/debootstrap --second-stage
# could do some of the following on laptop instead
echo vm.mmap_min_addr=0 >> /etc/sysctl.conf
sysctl vm.mmap_min_addr=0
# addr>0 symptoms: non-root login shell dies immediately
echo proc /proc proc nodev,noexec,nosuid 0 0 >> /etc/fstab
mount /proc
echo swapon /dev/mmcblk0p2 >> /etc/rc.local
swapon /dev/mmcblk0p2
adduser user
addgroup user sudo
passwd root
passwd user
exec sbin/init
# check root login; shut down netbook

# unplug SD card, plug into laptop
mount ${SDCARD}p3 $MOUNT
echo proc /proc proc nodev,noexec,nosuid 0 0 >> $MOUNT/etc/fstab
# echo sys /sys sysfs defaults 0 0 >> $MOUNT/etc/fstab
# echo devpts /dev devpts defaults 0 0 >> $MOUNT/etc/fstab
(
  echo deb http://http.debian.net/debian/ wheezy main contrib non-free
  echo deb-src http://http.debian.net/debian/ wheezy main contrib non-free
  echo deb http://security.debian.org/debian-security wheezy/updates main
  echo deb-src http://security.debian.org/debian-security wheezy/updates main
  echo deb http://http.debian.net/debian/ wheezy-backports main contrib non-free
) >> $MOUNT/etc/apt/sources.list
echo wm8850netbook > $MOUNT/etc/hostname
umount $MOUNT
mount ${SDCARD}p1 $MOUNT
(
  echo mmcinit 0
  echo fatload mmc 0 0 FirmwareInstall/uzImage.bin
  echo setenv bootargs mem=448M \
    root=/dev/mmcblk0p3 rootwait noinitrd rw
  echo bootm 0
) > /root/wmt_scriptcmd.in
mkimage -A arm -O linux -T script -C none -a 1 -e 0 -n "Created by Win32" \
-d /root/wmt_scriptcmd.in $MOUNT/wmt_scriptcmd
cp $MOUNT/wmt_scriptcmd $MOUNT/scriptcmd
mkdir -p $MOUNT/FirmwareInstall
cp $MOUNT/wmt_scriptcmd $MOUNT/FirmwareInstall/autorun.1.wmt
cp uzImage.bin $MOUNT/FirmwareInstall
umount $MOUNT

# unplug SD card, plug into netbook, boot