Tiny Core Linux

Tiny Core Linux is a minimal Linux distribution, designed for on-demand software loading. This page describes builds of Tiny Core Linux for the OLPC XO-1 and XO-1.5. For more information on Tiny Core Linux, see http://tinycorelinux.com

People involved:

• James Cameron, does microcore builds,
• Yioryos Asprobounitis, does tinycore with GUI builds,

microcore 3.4 for XO-1 and XO-1.5

Announcing a build of Tiny Core Linux for XO-1 and XO-1.5.

Useful for testing and diagnosis without touching the internal storage. Added recently are combined XO-1 and XO-1.5 support, a few scripts for backing up, restoring, and reverting laptops.

Features

• based on Tiny Core Linux 3.4 microcore variant, configured for a root shell in text mode, with additional shells on demand,

• uses the OLPC kernel, for hardware support, based on the kernel from OLPC OS 10.1.3 build os860,

• includes the wireless firmware shipped with OLPC builds, and binary redistribution of wireless and some filesystem tools from the OLPC builds,

• includes xo-backup, xo-repart, and xo-restore scripts, (these may be destructive, look at them before you use them),

• includes reversion server and client, for rapidly undoing filesystem changes made by laptop use, in test collections or shared classrooms.

Downloads

• XO-1 and XO-1.5, microcore-3.4-xo-2011-01-18.tar (15 MB) (md5sum b2b69b4b2c73e713d9b6c062d627f780)

Prepare USB Drive

• select a USB drive of at least 128 MB capacity, (it may have either a FAT or ext2 filesystem),

Linux - GNOME and Firefox

• insert the USB drive,

• click on the tar file link above, and a dialog window will appear asking you what you want done with the download,

• accept the default to open it in Archive Manager, and the Archive Manager window will appear,

• click on Extract, and a dialog window will appear asking you where to extract to,

• click on the USB drive in the Places list, then click on the Extract button, a dialog window will appear to tell you it worked,

• close the dialog window,

• close the Archive Manager window,

• close the Downloads window,

• eject the USB drive.

Linux - Terminal

• download the tar file using the link above, to the USB drive:

cd /media/FRED
wget ${URL}

• extract the tar file, at the top of the USB drive:

cd /media/FRED
tar xf microcore-3.4-xo-2011-01-18.tar

• eject the USB drive:

umount /media/FRED

Mac OS X

• insert the USB drive,
• control-click on the link above, select Download Linked File As ..., and a Save As dialog will appear,
• change Where to the name of the USB drive, usually Untitled, then click on Save, the dialog will go away,
• switch tasks to Finder, display the USB drive,
• double-click on the tar file, and the contents will be expanded, a new folder boot will be created,
• delete the tar file if you like, it is not required further,
• eject the USB drive.

Windows

• download the tar file,
• insert the USB drive,
• use WinZip or other operating system features to expand it onto the USB drive,
• eject the USB drive.

Boot USB drive

• boot an unsecured laptop (i.e. one with a developer key) from the USB drive. At the firmware's Ok prompt enter something like

 ok boot u:\boot\olpc.fth

• after a short wait you will see the system prompt:

root@box:~# 

Useful commands

• configure wireless manually:

root@box:~# iwlist eth0 scan
root@box:~# iwconfig eth0 essid mynetwork

• a DHCP client is in the background waiting to act when a network interface comes up, it may take a few seconds,

• additional utilities needed for a task can be installed:

root@box:~# su -c 'tce-load -wi rsync' tc

• additional shells can be started using Alt/F2, username tc.

• you can mount and investigate the XO's flash file system, for example on an XO-1 with the JFFS2 file system:

 # cat /proc/mtd
 # mkdir /mnt/MY_XO_FS
 # mount -t jffs2 mtd0 /mnt/MY_XO_FS

• The XO version of Tiny Core Linux has backup and restore scripts, see How to backup your XO

tinycore 2.8 with GUI for XO-1 and XO-1.5

In January 2010 a version based on microcore 2.8 was announced for both the XO-1 and XO 1.5.

Ready version of Tiny Core Linux for the XO-1 are available here and instructions for installation (for tc_xo_mm) here

tinycore_xo is the minimal installation with just Xfbdev for display driver

tc_xo_with_apps adds a file manager, basic applications and Opera web browser

tc_xo_mm adds sound, audio and video players

tc_xo_X adds Xorg and functioning game keys

tc-xo_01 in 3 flavors is now available. See the build announcement for more

The tc-xo_02 based on tinycore v2.10 and unmodified OLPC kernel is now available. See the v02 build announcement for more

For further discussion of this variant check this forum thread

References:

• Tiny Core Linux http://www.tinycorelinux.com/
• mktinycorexo script http://dev.laptop.org/~quozl/mktinycorexo/
• mktinycorexo script git repository git clone http://dev.laptop.org/~quozl/mktinycorexo/.git