Many instructions here are mirrored from Toby Schneider's instructions at http://gobysoft.org/wiki/InstallOnGumstixOvero.
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 |
~/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 |
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 run dpkg
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 the isc-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 |
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.