[ANNOUNCE] Tiny Core Linux for XO-1 and XO-1.5

[Yioryos Asprobounitis]

Builds of Tiny Core Linux for the XO-1 are available here
http://ftp.cc.uoc.gr/mirrors/linux/TinyCore_for_XO1/

tinycore_xo.tar.bz2 is just the kernel and a Xfbdev
tc_xo_with_apps.tar.bz2 includes Opera and some basic apps and 
tc_xo_mm.tar.bz2 includes alsa xmms and vlc 
They are all configured to save home data in the boot USB stick though the first one is problematic. Increase "usbwait" to 10 in /boot/olpc.fth for better reliability. 

They are all based in James Cameron's script ( http://lists.laptop.org/pipermail/devel/2010-January/027364.html ) but have a rebuild olpc-2.6.31 kernel from git, patched for Aufs2 with the Aufs2-standalone git patch and sources for 2.6.31. They also use the tinycore instead of microcore initrd (VARIANT=tinycore in JC's script). The /boot/olpc.fth was modified post-building as included in the builds

Besides Aufs2 the differences from the standard xo_1_defconfig are

CONFIG_SQUASHFS=m
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
......
CONFIG_BLK_DEV_LOOP=y
......
CONFIG_NLS_CODEPAGE_437=m

Though likely not relevant the Aufs2 .config additions are
CONFIG_AUFS_FS=m
CONFIG_AUFS_BRANCH_MAX_127=y
# CONFIG_AUFS_BRANCH_MAX_511 is not set
# CONFIG_AUFS_BRANCH_MAX_1023 is not set
# CONFIG_AUFS_BRANCH_MAX_32767 is not set
# CONFIG_AUFS_HINOTIFY is not set
# CONFIG_AUFS_RDU is not set
# CONFIG_AUFS_SP_IATTR is not set
# CONFIG_AUFS_SHWH is not set
CONFIG_AUFS_BR_RAMFS=y
# CONFIG_AUFS_BR_FUSE is not set
CONFIG_AUFS_BDEV_LOOP=y
# CONFIG_AUFS_DEBUG is not set 

The .config file is here: http://www.murga-linux.com/puppy/viewtopic.php?mode=attach&id=25478&sid=f59fb3fdfe7b73568611ab65da240405

The original Tinycore-XO vmlinuz and tinycore.gz was build on an XO-1 running the above kernel and F11-XO1/os10 build. The actual script is here http://lists.laptop.org/pipermail/devel/attachments/20100130/477bfec7/attachment.bin

The rest of the packages are from the tinycore repository unmodified except alsa.
For the sound subsystem the
alsa-modules-2.6.29.1-tinycore.tcz 
input-2.6.29.1-tinycore.tcz
Dependencies where eliminated from the alsa.tcz.dep file before installation and the:
mv /etc/udev/rules.d/25-alsa.rules /etc/udev/rules.d/92-alsa.rules
sh /usr/local/etc/init.d/alsasound start
lines where added to the /opt/bootlocal.sh file

Power management and OLPC keys are not working and a proper geode display driver is missing (is running with Xfbdev)

Help is appreciated :)








--- On Fri, 2/5/10, James Cameron <quozl at laptop.org> wrote:

> From: James Cameron <quozl at laptop.org>
> Subject: Re: [ANNOUNCE] Tiny Core Linux for XO-1 and XO-1.5
> To: "Yioryos Asprobounitis" <mavrothal at yahoo.com>
> Cc: "OLPC Devel" <devel at lists.laptop.org>
> Date: Friday, February 5, 2010, 5:52 PM
> Apologies for the delay ... I'd
> decided to wait for my next Saturday
> before spending more time on Tiny Core, because it is a
> side project for
> me.  The root shell was all I needed at work.
> 
> I tried compiling the kernel using tar-pkg, but the size of
> the kernel
> and modules was huge compared to the prebuilt kernel. 
> I noticed because
> it was too large for the XO-1.5's /tmp to hold the initrd
> tree.  I can
> fix /tmp fine, but when I looked at why the kernel was
> bigger I found
> module files were ten times larger.  Probably
> debugging symbols.  I'll
> have another go at it later.  I'll then add
> instructions to mktinycorexo
> for building a kernel.
> 
> -- 
> James Cameron
> http://quozl.linux.org.au/
>