Installing Ubuntu/Breezy on a ThinkPad T42

2005-10-19T18:32:52Z

SamRuby: /* Kernel support */ missing apt-get "install"

==General installation==
Here comes installation instructions for {{Ubuntu}} Breezy Badger on
{{T42}} 2374-ZEP.

Get a copy of Ubuntu from [http://www.ubuntulinux.org UbuntuLinux.org].

==Kernel support==
How to get the correct kernel:
{{cmduser|sudo apt-get install linux-686}}

===Kernel modules===
{{Todo|Load the different kernel modules, and their configuration}}

Important to turn off dynamicClocks in radeonfb in kernels before 2.6.14:
{{path|/etc/modprobe.d/radeonfb.modprobe}}:
options radeonfb default_dynclk=-1

ibm_acpi module:

Turning on experimental features:
{{path|/etc/modprobe.d/ibm_acpi.modprobe}}:
options ibm_acpi hotkey=enable,0xff9f experimental=1

Starting with wireless off:
{{path|/etc/modprobe.d/ipw2100.modprobe}}:
options ipw2100 disable=1

====ibm_acpi modules compilation====
Kernel 2.6.12-9 included in Breezy only included ibm_acpi version 0.8. However a version 0.11 is available, and included in 2.6.13.

[http://bugme.osdl.org/show_bug.cgi?id=4947 http://bugme.osdl.org/show_bug.cgi?id=4947]

===ACPI===
{{Todo|Hibernate, suspend, buttons, lid, speedstep}}

Modification to turn on wireless:
{{path|/etc/acpi/wireless.sh}}:
#!/bin/bash
# Find and enable/disable wireless devices

for DEVICE in /sys/class/net/*; do
if [ -d $DEVICE/wireless ]; then
# $DEVICE is a wireless device. Check if it's powered on:
if [ `cat $DEVICE/device/power/state` = 0 ]; then
# It's powered on. Switch it off.
echo -n 3 > $DEVICE/device/power/state;
echo 0
else
# It's powered off. Switch it on.
echo -n 0 > $DEVICE/device/power/state;
echo -n 0 > $DEVICE/device/rf_kill;
echo 1
fi
fi
done

==Xorg==

Relevant part:
Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
Option "Device" "/dev/input/mice"
Option "Protocol" "ImPS/2"
Option "Emulate3Buttons" "true"
Option "EmulateWheel" "true"
Option "EmulateWheelButton" "2"
Option "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
Identifier "Synaptics Touchpad"
Driver "synaptics"
Option "SendCoreEvents" "true"
Option "Device" "/dev/psaux"
Option "Protocol" "auto-dev"
Option "HorizScrollDelta" "0"
EndSection

Section "Device"
Identifier "ATI Technologies, Inc. Radeon Mobility 7500 (M7 LW)"
Driver "radeon"
BusID "PCI:1:0:0"
Option "DynamicClocks" "off"
Option "AGPMode" "4"
Option "AGPFastWrite" "yes"
EndSection

{{WARN|Options DynamicClocks "on" may hang your machine}}

==Initng==
Very great initiative for optimizing the boot process. [http://initng.thinktux.net/index.php/Main_Page Initng]

Dep packages can be found:
[http://alioth.debian.org/projects/pkg-initng/ http://alioth.debian.org/projects/pkg-initng/]

Installation:
{{cmduser|sudo dpkg -i initng_0.3.3-2_i386.deb}}

To run nice a few things and scripts need modification as follows:

====Kernel options====

To enable initng an option must be appended to the kernel load command in grub.

{{path|/boot/grub/menu.lst}}:
kernel /vmlinuz-2.6.12-9-686 root=/dev/hda9 ro quiet splash video=radeonfb init=/sbin/initng

====Runlevel====
{{path|/etc/initng/default.runlevel}}:
system
daemon/acpid
daemon/dbus
daemon/hald
daemon/vixie-cron
daemon/ifplugd
system/alsasound
system/speedstep
system/laptop-mode
daemon/syslogd
daemon/klogd
daemon/gdm
daemon/hpiod
daemon/cupsd
daemon/powernowd

===Scripts===
====dbus.i====
{{path|daemon/dbus.i}} has a few faults, on Ubuntu it is "dbus" not "dbus-1"!
service daemon/dbus {
need = system/initial system/mountfs system/bootmisc

pid_file = /var/run/dbus/pid
daemon {
DAEMON=/usr/bin/dbus-daemon
NAME=dbus
DAEMONUSER=messagebus
PIDDIR=/var/run/dbus
PIDFILE=$PIDDIR/pid
DESC="system message bus"

if [ -e /etc/default/dbus ]; then
. /etc/default/dbus
fi

if [ ! -d $PIDDIR ]; then
mkdir -p $PIDDIR
chown $DAEMONUSER $PIDDIR
chgrp $DAEMONUSER $PIDDIR
fi
if [ -e $PIDFILE ]; then
PIDDIR=/proc/$(cat $PIDFILE)
if [ -d ${PIDDIR} -a "$(readlink -f ${PIDDIR}/exe)" = "${DAEMON}" ]; then
echo "$DESC already started; not starting."
else
echo "Removing stale PID file $PIDFILE."
rm -f $PIDFILE
fi
fi
echo -n "Starting $DESC: "
$DAEMON --system $PARAMS
echo "$NAME."
}
}

====hald.i====
{{path|daemon/hald.i}}
service daemon/hald {
need = system/initial system/mountfs daemon/dbus
# use = daemon/acpid

daemon {
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/sbin/hald
PIDDIR=/var/run/hal
NAME=hal
DAEMONUSER=hal
DESC="Hardware abstraction layer"

if [ -f /etc/default/hal ] ; then
. /etc/default/hal
fi

if [ ! -d $PIDDIR ]; then
mkdir -p $PIDDIR
chown $DAEMONUSER:$DAEMONUSER $PIDDIR
fi

echo -n "Starting $DESC: "
$DAEMON --daemon=no $DAEMON_OPTS
echo "$NAME."
}
}

====gdm.i====

{{path|daemon/gdm.i}}, to add locale support to the GDM login screen:
service daemon/gdm {
need = system/initial system/mountfs system/hostname net/lo system/modules system/bootmisc
use = daemon/xfs system/static-modules system/coldplug system/netmount
# daemon = /usr/sbin/gdm
# daemon = /usr/bin/gdm
# daemon_args = -nodaemon
daemon {
PATH=/bin:/sbin:/usr/bin:/usr/sbin
if [ -r /etc/default/gdm ]; then
. /etc/default/gdm
if [ -z "$LANG" ]; then
:
else
export LANG
fi
fi

gdm -nodaemon
}
#pid_file = /var/run/gdm.pid
}

==Helpfull tools==
===Rovclock===
Utility to overclock and underclock the ATI radeon chip.
Can be used to underclock to reduce power, especialy when on batteries.

Get it from: [http://www.hasw.net/linux/ http://www.hasw.net/linux/]

Stable clock speeds:
Core: 100MHz
Memory: 120Mhz for LCP only, 180Mhz when using DVI out on port replicator.

Ex:
{{cmduser|sudo rovclock -c 100 -m 120}}

===noflushd===
Noflushd is a daemon that spins down disks that have not been read from
after a certain amount of time, and then prevents disk writes from
spinning them back up. It's targeted for laptops but can be used on any
computer with IDE disks. The effect is that the hard disk actually spins
down, saving you battery power, and shutting off the loudest component of
most computers.
{{cmduser|sudo apt-get noflushd}}

===ifplugd===
ifplugd is a daemon which will automatically configure your
ethernet device when a cable is plugged in and automatically
unconfigure it if the cable is pulled. This is useful on laptops with
onboard network adapters, since it will only configure the interface
when a cable is really connected.
{{cmduser|sudo apt-get ifplugd}}

{{path|/etc/default/ifplugd}}:
INTERFACES="eth0"
HOTPLUG_INTERFACES="eth0"
ARGS="-q -f -u0 -d10 -w -I -b"
SUSPEND_ACTION="stop"

===gnubiff===

gnubiff is a mail notification program that checks for mail and displays headers when new mail has arrived. Has a tray icon for gnome. Supports SSL which I needed.
[http://gnubiff.sourceforge.net/ http://gnubiff.sourceforge.net/]

{{cmduser|sudo apt-get install gnubiff}}

==Known problems==
{{Todo|List of bugs from kernel, Xorg and Ubuntu}}

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Installing Ubuntu/Breezy on a ThinkPad T42