Many instructions here are mirrored from Toby Schneider's instructions at http://gobysoft.org/wiki/InstallOnGumstixOvero.
Root filesystem preparation
Follow these steps to create a debian wheezy root filesystem. In this section we will use # host
to indicate commands run on the host machine, and # chroot
for commands commands run inside the chroot filesystem.
Install dependencies:
# host sudo apt-get install multistrap qemu-user-static
- Pick a working folder, in this case
~/duovero
Create a directory to hold the root filesystem:
# host cd ~/duovero mkdir rootfs
Create a configuration file debian.conf in ~/duovero and paste in the following. Additional packages can be included here or installed later using apt-get.
[General] arch=armel directory=~/duovero/rootfs retainsources=~/duovero/sources cleanup=true noauth=true unpack=true bootstrap=Wheezy Net Utils aptsources=Wheezy [Wheezy] packages=apt locales udev adduser sudo nano build-essential less source=http://debian.lcs.mit.edu/debian suite=wheezy [Net] packages=netbase ifupdown iproute net-tools iputils-ping ntp source=http://debian.lcs.mit.edu/debian [Utils] packages=wget source=http://debian.lcs.mit.edu/debian
Run multistrap to create the root filesystem.
# host multistrap -a armel -d ~/duovero/rootfs -f debian.conf
In ubuntu 14.04 you may need to remove $forceyes from /usr/sbin/multistrap at line 989
Copy the QEMU ARM emulator into the new root filesystem so it is on the path when we chroot in.
# host sudo cp /usr/bin/qemu-arm-static ~/duovero/rootfs/usb/bin/
(Optional) If you need
/dev/random
(for installing openssh-server for example), mount/dev
in the chroot.# host sudo mount -o bind /dev ~/gumstix/rootfs/dev
Chroot into the new filesystem.
# host sudo chroot ~/duovero/rootfs /bin/bash
Finish setting up packages
# chroot dpkg --configure -a
Answer "no" when prompted to use "dash" as "/bin/sh". If any packages fail to configure (possibly
ifupdown
), just rundpkg
again.Set the root user password.
# chroot passwd
(Optional) Add a new user and give it sudo permissions
# chroot adduser mit printf "mit ALL=(ALL) ALL" >> /etc/sudoers
Configure locales. Choose 136 for en_US.UTF-8.
# chroot dpkg-reconfigure locales
Add a DNS server
# chroot printf "nameserver 8.8.8.8" > /etc/resolv.conf
Add a static network entry for
eth0
(install theisc-dhcp-client
package for dhcp support)# chroot nano /etc/network/interfaces auto eth0 iface eth0 inet static address 192.168.1.102 netmask 255.255.255.0 gateway 192.168.1.1
Restart networking to apply the new interface.
# chroot /etc/init.d/networking restart
This might yield an error, but try pinging something anyways and it should work.
Update the apt repositories
# chroot apt-get update
Assign a hostname and update the hosts file
# chroot printf "nostromo" > /etc/hostname printf "127.0.0.1 nostromo\n" >> /etc/hosts
Add the serial console (specific to gumstix overo and duovero)
# chroot printf "T0:2345:respawn:/sbin/getty -L 115200 ttyO2 vt102\n" >> /etc/inittab
Add a proc filesystem to fstab
# chroot nano /etc/fstab # /etc/fstab: static file system information. # # <file system> <mount point> <type> <options> <dump> <pass> proc /proc proc defaults 0 0
Using the root filesystem
After setting up the root filesystem, chroot should now log you in as root by default. To log in as a different user, use chroot
with the --userspec
option. You'll need to provide the user and group id, not name though. To find the id, chroot in as root and look in /etc/passwd
# host sudo chroot ~/duovero/rootfs # chroot cat /etc/passwd root:x:0:0:root:/root:/bin/bash ... mit:x:1000:1000:,,,:/home/mit:/bin/bash
Now to login as the user mit:
# host sudo chroot --userspec=1000:1000 ~/duovero/rootfs
To avoid permission issues, you should use your user account (not the root account) to check out subversion or git repos. Sudo
may not work in the chroot environment, so you may still need to use the root account for operations that require root access.
Kernel Preparation
sudo apt-get install g++-arm-linux-gnueabi # currently defaults to 4.7 cd duovero/kernel-dev git clone git://github.com/gumstix/linux.git linux -b omap-3.6 cp config linux/.config
Software setup
Deploy to SD card