Difference between revisions of "Debian Wheezy Instructions"

Revision as of 13:30, 23 May 2013

Availability

Several Debian SD-Card images and root file system images are available for the odroid-u2 board. The root file system images <should> work for other odroid models, but they would have to be merged with the "stock" SD Card image and the kernel modules would have to be pulled from the "foriegn" kernel build. If this doens't make sense, please ask on the forum.

Versions

• minimal system (base) - headless or server-style. Login with USB-UART kit or using ssh. No GUI.
• system with visual desktop (gnome, xfce) - recommended for new users
• root filesystem only (rootfs) image - Need special handling. Tutorial: Updating from Root File System Images

For Linux host users, see Tutorial: Step-by-step SD-Card setup on Linux host

For Windows users, see Tutorial: Step-by-step SD-card setup on Windows

Features

Writing the base SD-card image and booting will give you a complete, headless Debian 7.0 system.
Headless, meaning only the Linux console is active -- not the HDMI display.

The network will come up automatically, using DHCP and the ssh daemon will be started so you can connect from another computer.

The login is: user/password or root/root. Specifically, this means username: user and password: password will get you in. Or you can use username: root, password: root.

If you log in as user, you can use command su to become root.

Revision History

See here for complete revision history of all images

Standard armhf Images

You should use the standard images that support hard-floating point. These will be faster than the soft-float versions.

http://odroid.us/odroid/odroidu2/debian/

Alternate armel Images

A secondary set of images that are armel based, using soft floating point, are stored here:

http://odroid.us/odroid/users/osterluk/debian-armel/

You can't easily mix soft-float compiled and hard-float compiled binaries on the same system.

Security Issues and Initialization

When you use an existing image, you pick up some keys that you should change for security reasons. Once you boot your system the first time do this: (as root)

rm /etc/ssh/*.pub /etc/ssh/*_key
#images starting at debian-wheezy-base-6.1 should have openssh-server installed
# re-generate the host ssh keys
dpkg-reconfigure openssh-server

It is best to set a unique persistent MACID. This script will do it:

echo $( ifconfig | grep HWaddr | awk '{ print $5 }' ) >/etc/smsc95xx_mac_addr

Debian Tips

This page is for Debian Tips Debian Tips

Image Creation Details

You can completely re-create any of these Debian root filesystem images own your own. All the instructions are here: Custom_Debian_Root_Filesystem_Image.