User:Kevgor/Miscellaneous Technical Notes: Difference between revisions

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Enable Cups <ref>[http://wiki.laptop.org/go/Enabling_CUPS Enable CUPS]</ref>
Enable Cups <ref>[http://wiki.laptop.org/go/Enabling_CUPS Enable CUPS]</ref>
Printing <ref>[http://wiki.laptop.org/go/Printing Printing]</ref>
Printing OLPC Notes<ref>[http://wiki.laptop.org/go/Printing Printing OLPC Notes]</ref>

Printing Tony Pearson IBM Notes<ref>[https://www.ibm.com/developerworks/mydeveloperworks/blogs/InsideSystemStorage/entry/printing_on_xo_laptop_with?lang=en Printing Tony Pearson IBM Notes]</ref>


OLPC News mavrothal page <ref>[http://www.olpcnews.com/forum/index.php?topic=4965.msg33437;topicseen#msg33437 Mav ref page]</ref>
OLPC News mavrothal page <ref>[http://www.olpcnews.com/forum/index.php?topic=4965.msg33437;topicseen#msg33437 Mav ref page]</ref>

Revision as of 17:09, 17 November 2011

Miscellaneous Technical Notes

November 2011

Thanks to Daniel Drake, Mikus Grinbergs, Martin Langhoff, Peter Robinson, James Cameron, Richard Smith, and Yioryos Asprobounitis for all of their help on these things :-)



Ntugi Group Reflash Documents


Install Developer Key

su -
wget -P /security https://activation.laptop.org/devkey/xxxxxxxxx/develop.sig


Booting up cheat keys

signed install - right game pad - all 4 game keys, on right-hand of display

text boot - right game pad - check-mark key, on right-hand side of display

boot to OFW - esc (X), keyboard key

diagnostics - left game pad - rocker left, on left of display


Set Clock using serial adapter

At the ok prompt, type these commands to set the date (hitting enter after each one):

ok select /rtc
ok decimal
ok sec min hour day month year set-time

sec, min, hour, day, etc in the previous command should be numbers correlating to the current date. For the current time:

ok 01 43 20 21 11 2024 set-time


Set Clock using Linux

Once Linux has booted, login at a root terminal (e.g. press Ctrl+Alt+F1).

Set the system time using the date command, e.g. for the current date/time:

date --utc --set="2024-11-21 20:43:01"

Then shutdown normally and the system time will be stored in the clock.

(Don't force a shutdown by holding down the power button, because then the change won't be stored.)

Unsigned Build reflash commands from OFW ok prompt

XO1 - jffs2 from os-builder

copy-nand u:\osx.img

XO1

update-nand u:\osx.onu

XO1.5 and 1.75

fs-update u:\osx.zd4

OFW

flash u:\qxxxx.rom


Start cups service

/sbin/service cups start


FTP server

Link to brooksc OLPC News page on ftp on the XO <ref>Brooksc FTP notes</ref>.

pure-ftpd is now included in the standard repository packages, so one can just do a plain

yum install --nogpgcheck pure-ftpd

To manually start the service, non-persistent:

/sbin/service pure-ftpd start


USB ethernet auto-assign workaround

avahi-autoipd eth1


Trackpad/Keyboard commands

What kind of trackpad do I have?

dmesg | grep psmouse

Output from above command:
XO 1.5 newer CL1A = serio1: ID: 10 02 64
XO 1.5 older CL1A = synaptics
XO 1.0 = 50

Tap-to-click Persistent for older CL1/CL1A - edit the following file; to turn on set the param =1 or off =0

/etc/modprobe.d/olpc.psmouse.conf

Tap-to-click Non-Persistent for newer CL1A - to turn ON

echo -n C > /sys/bus/serio/drivers/psmouse/serio*/flags

Tap-to-click Non-Persistent for newer CL1A - to turn OFF

echo -n c > /sys/bus/serio/drivers/psmouse/serio*/flags


Adopt authority/permissions hint

add the NOPASSWD option in /etc/sudoers just for the scripts/commands you need

Sample yum syntax

For download only of yum updates to an External USB Volume PATRIOT with subdirectory called UpdateRpms

yum update --downloadonly --nogpgcheck --downloaddir=/media/PATRIOT/UpdateRpms

For installing rpms from a USB volume PATRIOT with subdirectory called UpdateRpms and no internet access

yum localinstall --nogpgcheck --disablerepo=* /media/PATRIOT/UpdateRpms/*.rpm

Install bad and ugly gstreamer files to USB

For download only of rpm's to an External USB Volume PATRIOT with subdirectory called Guvcview. This will alter the repos used for subsequent Updates, so delete rpmfusion repos later if you wish

yum install --nogpgcheck \
http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-stable.noarch.rpm \
http://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-stable.noarch.rpm
sleep 2
yum install --downloadonly --nogpgcheck --downloaddir=/media/PATRIOT/Guvcview \
gstreamer-plugins-bad gstreamer-plugins-ugly gstreamer-ffmpeg


Enable and Start Bluetooth service

To enable:

systemctl enable bluetooth.service

ln -s ‘/lib/systemd/system/bluetooth.service’ ‘/etc/systemd/system/dbus-org.bluez.service’
ln -s ‘/lib/systemd/system/bluetooth.service’ ‘/etc/systemd/system/bluetooth.target.wants/bluetooth.service'

To start:

systemctl start bluetooth.service

Frequent Links for XO resources

XO diagnostics <ref>XO diagnostics</ref>

Developer Builds <ref>Developer builds</ref>

Koji for arm rpms <ref>Arm rpms from Koji</ref>

Stable builds <ref>Stable builds</ref>

Enable Cups <ref>Enable CUPS</ref>

Printing OLPC Notes<ref>Printing OLPC Notes</ref>

Printing Tony Pearson IBM Notes<ref>Printing Tony Pearson IBM Notes</ref>

OLPC News mavrothal page <ref>Mav ref page</ref>

Disassembly Instructions <ref>Disassembly Instructions</ref>

Manufacturer Data Legend <ref>Manufacturing Data legend</ref>

External links


References

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