Neuronas electrónicas

Chromium OS installation step by step

Oct
14

I have been struggling for two day to make the files app work, here is the solution I found, step by step so new users are able to execute it.

Download a fresh image from http://arnoldthebat.co.uk/wordpress/chromium-os/

I tried October 13 daily build 64 bits.

Load the image into an USB as explained in the page.

Boot chromium from USB and configure the firts run.

Once you are logged in go to the next page.

http://www.chromium.org/developers/how-tos/api-keys

Follow the instructions to generate your keys.

Then go to the developer console apis list and make sure you have the following apis enabled.

Drive API
Drive SDK.
Google Maps Geolocation API.
Google Now For Chrome API. 

Open a new Crosh screen Ctrl + Alt + T in chromium browser.

Type: shell.

Type : sudo su.

And enter the password usually “password” without quotes.

Mount your system as read write.

Type: mount -o remount,rw /

Type: cd /etc

Type: vi chrome_dev.conf

Go to the first line and insert your keys (fake ones used):

GOOGLE_API_KEY=AAA

GOOGLE_DEFAULT_CLIENT_ID=BBB

GOOGLE_DEFAULT_CLIENT_SECRET=CCC.

Be careful as VI is very tricky to use, once the data is correct save the file, using ESC wq and enter, if you have issues saving find in google on how to use VI.

Once the file is saved go to the bottom right of the screen and click on your user picture and sign out, once the system ui restart login, it will say that you need to login again in order to update your credentials, once you login again, the system will be able to use the files APP.

After this I usually load the plugins like flash and other unsupported files.

What worked for me is following the instructions in.

https://github.com/sixsixfive/chromiumos.

The script asks for Keys, but I already saved them in the file, So maybe we can save some of the steps discussed above using the functionality in the script, If someone can try that it will be great as we will avoid the use of the shell.

Please share your experience with the instructions I have provided, Im happy to be able to share something with the community.

Migrating to Lucid Lynx (10.04 LTS) – coLinux

May
26

Once the upgrade is completed, add the following to /etc/fstab (before rebooting):

dev /dev devtmpfs rw 0 0

Sometimes you have to replace devtmpfs with just tmpfs in the line above.

There may be plymouth warnings on the console at the next reboot. Disable those by running:

cd /etc/init for i in plymouth*; do mv $i $i.disabled; done

Create an upstart script for uTorrent

May
12

To create an upstart script for uTorrent, move all the uTorrent files to the /home/yourusername/.utorrent folder, then run the following command:

$sudo nano /etc/init/utorrent.conf

description “utorrent startup script”

 
start on (local-filesystems and started dbus and stopped udevtrigger)
stop on runlevel [016]
script
cd /home/yourusername/.utorrent
exec su yourusername -c “/home/yourusername/.utorrent/utserver”
end script

 

 

$sudo ln -s /lib/init/upstart-job /etc/init.d/utorrent

WPA Ubuntu 10.04

Nov
06

Install wpa supplicant package:

$ sudo apt-get install wpasupplicant

Configure network ESSID and passphrase.
In this example I use ESSID ‘yantoknuk-singtel’ and passphrase ‘ngumbahkucing’.

$ wpa_passphrase yantoknuk-singtel
# reading passphrase from stdin

After that, type in your passphrase right below the text ‘# reading passphrase from stdin’.

# reading passphrase from stdin
ngumbahkucing
network={
ssid=”yantoknuk-singtel”
#psk=”ngumbahkucing”
psk=1e6eb493adf24740e2d3e98759b8b985e69f0bb939931c19400ceeecb61788e1
}

Edit or create /etc/wpa_supplicant.conf:

$ sudo nano /etc/wpa_supplicant.conf

And then type in the following lines which is produced by wpa_passphrase before:

network={
ssid=”yantoknuk-singtel”
#psk=”ngumbahkucing”
psk=1e6eb493adf24740e2d3e98759b8b985e69f0bb939931c19400ceeecb61788e1
}

Save and exit nano.
To test the configuration, execute this:

$ sudo wpa_supplicant -iwlan0 -c/etc/wpa_supplicant.conf -Dwext

If it’s successful you should see something like the following:

Trying to associate with 00:ff:00:1e:a7:7d (SSID=’yantoknuk-singtel’ freq=0 MHz)
Associated with 00:ff:00:1e:a7:7d
WPA: Key negotiation completed with 00:ff:00:1e:a7:7d [PTK=TKIP GTK=TKIP]

It’s finish. Your computer is now associated / connected to the access point.
To make it autorun on boot, add in these lines to /etc/network/interfaces:
$ sudo nano /etc/network/interfaces

And add the following lines:

auto wlan0
iface wlan0 inet dhcp
wpa-driver wext
wpa-conf /etc/wpa_supplicant.conf

Headless X11VNC

Aug
10

The answer is actually a combination of two separate solutions, each of which did not work separately. I have 10.04 now working headless on two different servers (different MB, Video…) and both are working great.

Step 1. Create a xorg.conf in /etc/X11 with the following. I tried Step 2 without doing this and it failed exactly as it had before.

Section “Device”
Identifier “VNC Device”
Driver “vesa”
EndSection

Section “Screen”
Identifier “VNC Screen”
Device “VNC Device”
Monitor “VNC Monitor”
SubSection “Display”
Modes “1024×768”
EndSubSection
EndSection

Section “Monitor”
Identifier “VNC Monitor”
HorizSync 30-70
VertRefresh 50-75
EndSection

Step 2. Disable KMS for your video card as described here https://wiki.ubuntu.com/X/KernelModeSetting

The jist is to know which video card manufacturer you have and use the command line entry below it to create the appropriate kms.conf file with the line “options…modeset=0” line in it. If you have access to the GUI you could just are easily create/modify the file and put the “options…modeset=0” in as appropriate.

The following are input into the terminal windows as a line command.

# ATI Radeon:
echo options radeon modeset=0 > /etc/modprobe.d/radeon-kms.conf

# Intel:
echo options i915 modeset=0 > /etc/modprobe.d/i915-kms.conf

# Nvidia (this should revert you to using -nv or -vesa):
echo options nouveau modeset=0 > /etc/modprobe.d/nouveau-kms.conf

Step 3. Reboot…Putty In…startx…GTG!

X11VNC Ubuntu 10.04

Jul
27

This is a simple guide on setting up X11VNC on a system running Ubuntu 10.04 in a headless configuration. Good Luck, and YMMV.

1. Terminal > sudo apt-get install x11vnc
OR compile x11vnc from source: http://www.karlrunge.com/x11vnc/

2. Terminal > sudo nano /etc/gdm/Init/Default

2.1. Add on the second last line:
/usr/bin/x11vnc -xkb -rfbauth /etc/x11vnc/passwd -o /etc/x11vnc/log -bg -forever
OR if you compiled from source, add the following line:
/usr/local/bin/x11vnc -xkb -rfbauth /etc/x11vnc/passwd -o /etc/x11vnc/log -bg -forever

2.2. Terminal > sudo mkdir /etc/x11vnc

2.3. Terminal > sudo touch /etc/x11vnc/log

2.4. Terminal > sudo x11vnc -storepasswd /etc/x11vnc/passwd
Follow the commands to store your password. Alternatively, if you do not wish to use a password, do not run this line and remove the -rfbauth /etc/x11vnc/passwd section from /etc/gdm/Init/Default

3. Terminal > sudo restart gdm

Iniciar VNC automaticamente en Ubuntu

Jul
23

Para tener un VNC que inicie automaticamente con el perfil de usuario deseado y con la resolucion que uno elija, hay que hacer un archivo llamado vnc en la ruta /etc/init.d con el siguiente contenido:

#!/bin/sh -e
### BEGIN INIT INFO
# Provides:          vncserver
# Required-Start:    networking
# Default-Start:     S
# Default-Stop:      0 6
### END INIT INFO

PATH=”$PATH:/usr/X11R6/bin/”

# The Username:Group that will run VNC
export USER=”mythtv”
#${RUNAS}

# The display that VNC will use
DISPLAY=”1″

# Color depth (between 8 and 32)
DEPTH=”16″

# The Desktop geometry to use.
#GEOMETRY=”<WIDTH>x<HEIGHT>”
#GEOMETRY=”800×600″
GEOMETRY=”1024×768″
#GEOMETRY=”1280×1024″

# The name that the VNC Desktop will have.
NAME=”my-vnc-server”

OPTIONS=”-name ${NAME} -depth ${DEPTH} -geometry ${GEOMETRY} :${DISPLAY}”

. /lib/lsb/init-functions

case “$1” in
start)
log_action_begin_msg “Starting vncserver for user ‘${USER}’ on localhost:${DISPLAY}”
su ${USER} -c “/usr/bin/vncserver ${OPTIONS}”
;;

stop)
log_action_begin_msg “Stoping vncserver for user ‘${USER}’ on localhost:${DISPLAY}”
su ${USER} -c “/usr/bin/vncserver -kill :${DISPLAY}”
;;

restart)
$0 stop
$0 start
;;
esac

exit 0

Despues ejecutamos lo siguiente, para que arranque automaticamente con el sistema, recuerda de hacer ejecutable el archivo vnc con el comando chmod +x vnc

update-rc.d vncserver defaults

Buscar texto en archivos recursivamente

Jul
19

El dia  de hoy al tratar de modificar el template del sitio estaba buscando el texto que aparece en la forma de busqueda, estaba en ingles y la queria poner en español.

 

Gracias a linux, esto es muy sencillo basta con teclear

grep -r “search this site” *

Con esto el sistema buscara recursivamente por el string dentro de todos los archivos

Alternativa a Photoshop

Jul
19

Despues de mucho tiempo y batallar con las nuevas versiones de Photoshop, porque son lentas y ocupan mas disco duro que el mismo windows.

Empeze una ardua busqueda de una alternativa que me dejara contento, intente con varias opensource, pero la verdad no podia acostumbrarme a usarlas, estaba acostumbrado al photoshop.

Despues de mucho buscar di con una alternativa el Artweaver

Finch y como usar MSN desde el trabajo

Jul
19

Despues de haber disfrutado el uso del MSN en el trabajo he sido bloqueado, todos mis intentos por hacer funcionar el cliente de MSN han fallado, trate de entrar a paginas que ofrecian el servicio de conexion y todas estan bloqueadas por el firewall.

Entonces encontre una maravilla llamada finch, despues les dire como usarla y donde obtenerla.