Novena/Debian Wheezy Bootstrap
Debian Wheezy Debootstrap
A VERY ROUGH SET OF INSTRUCTIONS, RUN WITH CARE
This set of instructions assumes you have a functioning Novena board with Debian Wheezy. These instructions are primarily for people who want to re-create the firmware/base image. It relies on various bits and pieces of information on this wiki.
Prerequisites
- An existing Novena board running Debian Wheezy .
- Root access on your board, ideally have sudo access with no password.
- A 4gb microsd card.
- A reasonably fast network connection.
- Approximately 10gigs of free diskspace (more is probably better so you can cache things during testing/dev) - ideally get a SSD plugged into the board.
- Assumes 'you as a user' has tried building a linux kernel, u-boot etc...
- i.e. we assume you have generated the kernel debian packages, uImage, uImage.dtb, the relevant boot loader and boot scripts.
Summary
- generate u-boot boot loader and boot script
- generate uImage and uImage.dtb file
- generate debian packages for the kernel
- generate a blockdevice or use a real sdcard
- qemu-nbd was used in this example
- first partition is a fat32 partition for the kernel and boot.scr
- second partition is for the operating system
- debootstrap the second partition (via apt-cacher-ng to reduce network traffic)
Steps
Be logged in as yourself.
Install at least these things...
sudo apt-get install -y qemu-utils apt-cacher-ng build-essential less rsync lzop u-boot-tools git debhelper bc device-tree-compiler parted
Generate a new boot script...
mkimage -A arm -O linux -a 0 -e 0 -T script -C none -n "Boot script" -d boot.script boot.scr
Where boot.script contains this...
mmc dev 1
if fatload mmc 1 0x12000000 uImage
then
fatload mmc 1 0x11ff0000 uImage.dtb
setenv bootargs console=${console},${baudrate} root=${mmcroot}
setenv bootargs console=ttymxc1,115200 earlyprintk root=/dev/mmcblk1p2 rootwait rootfstype=ext4 splash consoleblank=0
else
mmc dev 0
fatload mmc 0 0x12000000 uImage
fatload mmc 0 0x11ff0000 uImage.dtb
setenv bootargs console=ttymxc1,115200 earlyprintk root=/dev/mmcblk0p2 rootwait rootfstype=ext4 splash consoleblank=0
fi
fdt addr 0x11ff0000; run prep_gbit; run prep_pcie; run prep_senoko; run prep_es8328; run prep_retina; run prep_pixelqi; run prep_hdmi
bootm 0x12000000 - 0x11ff0000
Generate the boot loader
git clone https://github.com/sutajiokousagi/u-boot-imx6.git cd u-boot-imx6 && make novena_config && make
Generate the kernel image
git clone https://github.com/xobs/novena-linux.git cd novena-linux && git checkout v3.16-rc2-novena && make novena_defconfig && make uImage LOADADDR=10008000 -j 4 && make ARCH=arm imx6q-novena.dtb
Generate the kernel debian packages with this shell script (run this in the novena-linux repo on the right branch)
#!/bin/sh make -j4 \ LOADADDR=0x10008000 \ LD=gold \ KBUILD_DEBARCH=armhf \ KBUILD_IMAGE=uImage \ KBUILD_DTB=imx6q-novena.dtb \ KDEB_PKGVERSION=1.2 \ EMAIL="xobs@kosagi.com" \ NAME="Sean Cross" \ dtbs || exit 1 make -j4 \ LOADADDR=0x10008000 \ LD=gold \ KBUILD_DEBARCH=armhf \ KBUILD_IMAGE=uImage \ KBUILD_DTB=imx6q-novena.dtb \ KDEB_PKGVERSION=1.2 \ EMAIL="xobs@kosagi.com" \ NAME="Sean Cross" \ deb-pkg
Here's is a run down of all the steps needed to generate a base image
# create image, then map it to a nbd, create and format partitions qemu-img create novena.img 4G # might need this # sudo modprobe nbd max_part=16 sudo qemu-nbd --connect=/dev/nbd0 novena.img sudo parted --script /dev/nbd0 -- mklabel msdos # there might be alignment issues -- need to test sudo parted --script /dev/nbd0 -- mkpart primary fat32 1 64 #sudo parted --script /dev/nbd0 -- mkpart primary fat32 0 64 sudo parted --script /dev/nbd0 -- mkpart primary ext4 64 -0 #sudo parted --script /dev/nbd0 -- set 1 boot on sudo mkfs.ext4 /dev/nbd0p2 sudo mkfs.vfat /dev/nbd0p1 # mount the ext4 partition sudo mount /dev/nbd0p2 /mnt # use local apt-cacher-ng proxy sudo debootstrap --include=sudo,openssh-server,ntpdate,dosfstools,sysvinit,fbset,less,xserver-xorg-video-modesetting,task-xfce-desktop,hicolor-icon-theme,gnome-icon-theme,tango-icon-theme,i3-wm,i3status wheezy /mnt http://127.0.0.1:3142/ftp.ie.debian.org/debian/ # basic configuration sudo mount --bind /dev/ /mnt/dev sudo mount --bind /dev/pts /mnt/dev/pts sudo chroot /mnt mount -t proc none /proc sudo chroot /mnt mount -t sysfs none /sys
policy-rc.d contains this
#!/bin/sh echo "All runlevel operations denied by policy" >&2 exit 101
sudo cp files/usr/sbin/policy-rc.d /mnt/usr/sbin/policy-rc.d echo root:kosagi | sudo chroot /mnt /usr/sbin/chpasswd
hostname contains this
novena
hosts contains this
127.0.0.1 localhost ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters
fstab contains this
/dev/mmcblk0p2 / ext4 noatime,nodiratime,errors=remount-ro 0 1 proc /proc proc defaults 0 0 devpts /dev/pts devpts mode=0620,gid=5 0 0 tmpfs /tmp tmpfs defaults 0 0 /dev/mmcblk0p1 /boot/bootloader vfat defaults 2 2
interfaces contains this
auto lo iface lo inet loopback # The primary network interface allow-hotplug eth0 iface eth0 inet dhcp
sources.list contains this
deb http://ftp.ie.debian.org/debian/ wheezy main deb-src http://ftp.ie.debian.org/debian/ wheezy main deb http://ftp.ie.debian.org/debian/ wheezy-updates main deb-src http://ftp.ie.debian.org/debian/ wheezy-updates main deb http://security.debian.org/ wheezy/updates main deb-src http://security.debian.org/ wheezy/updates main deb http://ftp.ie.debian.org/debian wheezy-backports main deb-src http://ftp.ie.debian.org/debian wheezy-backports main
# install some basic things needed to kick of the networking etc... sudo cp files/hostname /mnt/etc/hostname sudo cp files/hosts /mnt/etc/hosts sudo cp files/fstab /mnt/etc/fstab sudo cp files/network/interfaces /mnt/etc/network/interfaces sudo cp files/etc/apt/sources.list.d/kosagi.list /mnt/etc/apt/sources.list.d/kosagi.list sudo cp files/etc/apt/sources.list /mnt/etc/apt/sources.list sudo cp files/kosagi.gpg.key /mnt/root/kosagi.gpg.key sudo chroot /mnt apt-key add /root/kosagi.gpg.key sudo chroot /mnt apt-get update -y sudo chroot /mnt env DEBCONF_NONINTERACTIVE_SEEN=true DEBIAN_FRONTEND=noninteractive apt-get install -y imx-sdma-firmware sudo chroot /mnt apt-get clean -y sudo cp binaries/*.deb /mnt/root sudo chroot /mnt dpkg -i /root/linux-firmware-image-3.16.0-rc2-28074-g8b39edb_1.2_armhf.deb sudo chroot /mnt dpkg -i /root/linux-image-3.16.0-rc2-28074-g8b39edb_1.2_armhf.deb sudo chroot /mnt dpkg -i /root/linux-headers-3.16.0-rc2-28074-g8b39edb_1.2_armhf.deb sudo rm /mnt/usr/sbin/policy-rc.d sudo mkdir -p /mnt/etc/X11 sudo cp files/etc/X11/xorg.conf /mnt/etc/X11/xorg.conf sudo cp files/etc/inittab /mnt/etc/inittab sudo cp files/etc/default/locale /mnt/etc/default/locale # setup boot loader sudo mkdir -p /mnt/boot/bootloader sudo mount /dev/nbd0p1 /mnt/boot/bootloader sudo cp binaries/uImage /mnt/boot/bootloader/uImage sudo cp binaries/imx6q-novena.dtb /mnt/boot/bootloader/uImage.dtb sudo cp boot.scr /mnt/boot/bootloader/boot.scr sudo chroot /mnt umount /proc sudo chroot /mnt umount /sys sudo umount /mnt/dev/pts sudo umount /mnt/dev sudo umount /mnt/boot/bootloader sudo umount /mnt sudo dd if=binaries/u-boot.imx of=/dev/nbd0 seek=2 bs=512 conv=notrunc sudo qemu-nbd -d /dev/nbd0
Once the above is done, you will be left with a novena.img file that you can dd to an sdcard.
