Linux « Alex Sleat

Archive for the ‘Linux’ Category

Xfce4 Installed on Ubuntu 11.10, Global Menu Remains.

After installing Ubuntu 11.10 I headed straight for an install of gnome-shell, I’ve been using it for a couple of months without any issue and got used to it enough that it wouldn’t impede on my workflow. That was until this release, when it was officially supported by Canonical and all of a sudden it’s broken and mostly useless. So off to Xfce I go, it’s like gnome2 but way more customisable and actually pretty sweet.

However because I installed from a clean Ubuntu install rather than an xubuntu install I noticed that I still have the global menu (or appmenu-*) floating at the top under the default panel. To remove it, since it’s doing nothing and it looks plain stupid with transparency added to the panel.

It’s pretty simple to uninstall, just open up a terminal window and use the following command:

sudo apt-get remove appmenu-gtk3 appmenu-gtk appmenu-qt

Now just re-start X (log out and in again, restart the computer) and when you return, it should be gone.

And if you ever feel the need to want it back, maybe you want to give unity another try then use the following command:

sudo apt-get install appmenu-gtk3 appmenu-gtk appmenu-qt

Source: http://www.addictivetips.com/ubuntu-linux-tips/how-to-disable-global-menu-in-ubuntu-11-10-tip/

How to Install the ‘gnome-shell-extensions-mediaplayer’ Extension

The mediaplayer widget found on github, created by eonpatapon – (https://github.com/eonpatapon/gnome-shell-extensions-mediaplayer).

I’ve been searching for a while for a good, solid widget style thing that’ll sit in the top of the gnome-shell panel which can control the music that’s playing in banshee, rhythmbox or whatever else you want to use to play your tunes.

Installation:

1. First you’ll need to grab some dependencies:

sudo apt-get install git gnome-common gnome-tweak-tool

2. Next download the files from the git repository as below (this will download the folder to whatever directory you’re currently in, in terminal):

git clone https://github.com/eonpatapon/gnome-shell-extensions-mediaplayer.git

3. Once it’s finished download (it shouldn’t take too long it’s only about 2.30MB as of writing this guide), you’ll want to install using the following commands:

cd gnome-shell-extensions-mediaplayer
./autogen.sh --prefix=/usr
make
sudo make install

4. That’s it, it’s installed. Next you’re going to want to enable it, run gnome-tweak-tool and under extensions slide the newly installed extension to ON and it should appear next to the “Universal Access Settings” in the top right.

Ubuntu requires CD for software (installs and updates)

If when attempting to update software or install new software in Ubuntu you find yourself being asked to insert the installation/live CD or if you find the following errors while trying to update your sources the following should help fix this error.

W: Failed to fetch cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release amd64 (20111012)/dists/oneiric/main/binary-i386/Packages  Please use apt-cdrom to make this CD-ROM recognised by APT. apt-get update cannot be used to add new CD-ROMs

W: Failed to fetch cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release amd64 (20111012)/dists/oneiric/main/binary-amd64/Packages  Please use apt-cdrom to make this CD-ROM recognised by APT. apt-get update cannot be used to add new CD-ROMs

W: Failed to fetch cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release amd64 (20111012)/dists/oneiric/restricted/binary-amd64/Packages  Please use apt-cdrom to make this CD-ROM recognised by APT. apt-get update cannot be used to add new CD-ROMs

W: Failed to fetch cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release amd64 (20111012)/dists/oneiric/restricted/binary-i386/Packages  Please use apt-cdrom to make this CD-ROM recognised by APT. apt-get update cannot be used to add new CD-ROMs

E: Some index files failed to download. They have been ignored, or old ones used instead.

In order to fix this you’ll need to open up a terminal and type:

 sudo nano /etc/apt/sources.list

Now you’ll see something similar to the following:

From here add a # to any lines starting with “deb cdrom:” then save and exit nano (Ctrl+X, Y, Enter).

Now from terminal type:

 sudo apt-get update

You should now be able to install and update all the things without the need for a CD being mounted.

One Line IP Address Bash Command

ifconfig eth0 | sed -n '/^[A-Za-z0-9]/ {N;/dr:/{;s/.*dr://;s/ .*//;p;}}'

So you want to display just your IP address and not all the other stuff that comes with using the ifconfig command. Then use the above command.

It’s useful if you need your IP address in a script but you don’t want to set a static address for your machine, it outputs just the IP address on a single line as shown below:

Downloading all your Facebook Photos for Google Plus – In Linux

Okay so, with Google Plus just being released to a select few (and invites) you might be wanting to export all your Facebook photos, tagged and albums you’ve uploaded to Google+. There are several ways of going about this, a few webapps, apps and through Facebook itself, the problem is that most of these don’t work in Linux making it a little more tricky to do without switching to Windows or OSX or borrowing some ones laptop for a while.

Through Facebook Route:

This way is actually pretty easy, which came as a surprise to me since I would have though it be in Facebooks best interest to keep users there just because it’s too much hassle to change.

First head over to Facebook.com, login and make your way through the labrynth that is Facebook settings to
‘Account Settings’ > Next to ‘Download Your Information’ click ‘Learn more’ > click ‘Download’.

This way you’re going to have to wait for Facebook to process all your data, they’ll then send you an e-mail once it’s done to a download link. This is a compressed (ZIP) file which contains all your information from Facebook, in the Photos folder you’ll find all your pictures which can then be uploaded to Google Plus.

The problem with this way is that it can take a reasonable amount of time (a couple of days depending on how much information you have..) and I’ve had it fail on a couple of occasions.

Alternatively you can use the following:

The PhotoGrabber Option:

For this you’ll need a couple of dependencies installed, it’s a desktop app that downloads the files for you.

Install dependencies:

sudo apt-get install python python-tk

Install PhotoGrabber:

svn checkout http://photograbber.googlecode.com/svn/trunk/ photograbber-read-only
cd photograbber-read-only/
./pg.py

Once you’ve ran all that and the ./pg.py bit it should load up with the following:

Click Login and then proceed to login and allow PhotoGrabber to do its thing, once you’ve done that you’ll get to a screen similar to below with a code:

Copy and paste that into the PhotoGrabber window (you’ll need to use Ctrl+V no right click to paste) and then it’ll let you choose which photos to take. Once you’ve picked, hit Download and watch them download to the folder you specify. There’ll be a lot folders, one for each place you were tagged. Once it’s done you can upload them however you want to Google Plus otherwise just keep them.

ROS: Publishing and Subscribing to Arrays

In ROS (Robot Operating System) it’s really easy to publish variables to be used between nodes running on the same roscore however I was having some difficulty doing the same for arrays. The problem came when there was no real examples of how to use them, so here is a working example of std_msgs/*MultiArray in ROS.

Publishing:

[gist][/gist]

Subscribing:

[gist][/gist]

Steam in Wine, Repeated Windows

After installing Steam on my linux machine in wine I noticed a really annoy bug, the windows of steam are tiled across my screen as shown in the screenshot below.

Fix:

I managed to fix this by opening up the ‘Configure Wine’ program that comes with wine and under the Applications tab switching from Windows XP mode to Windows 7, this fixed this bug and I now also have system borders on the steam windows.

Installing Wine:

If you’re interested in getting steam installed I used this guide - https://wiki.ubuntu.com/UbuntuMagazine/HowTo/InstallingSteam – It’s pretty simple and only takes a few minutes to do. Below is a quick, simple breakdown of what that guide says to do.

Download wine:

sudo apt-get install wine

Download the steam installer from here:

http://www.steampowered.com/v/index.php

Copy over the tahoma.ttf font from a Windows install (or Download it here – http://source.winehq.org/source/fonts/tahoma.ttf ). Do this command from the folder you downloaded the font to.

 cp tahoma.ttf ~/.wine/drive_c/windows/fonts/

(If it doesn’t work and says the folder is missing or somthing like that do the following and then re-do the cp)

 mkdir ~/.wine/drive_c/windows/fonts/

Finally install Steam (Do this command in the directory you downloaded the Steam installer to):

msiexec /i SteamInstall.msi

Flashing Samsung Galaxy S (I9000) ROMs with Heimdall

This Tutorial is just a documentation of how I flashed my Samsung Galaxy S (I9000) using heimdall with Darky’s Rom v10.1, follow the steps at your own risk. I am in no way liable for any damage caused to your phone following these steps. I would advise reading up on flashing before proceeding along with pre-reading the guide first.

If you don’t know what you’re doing, you should probably not do it.

For more information, help and most anything check out xdadevelopers forum and DarkysRom.com

This guide is using a fresh install of Ubuntu 11.04 on a memory stick, I was unable to get heimdall installed on Fedora 15 or Ubuntu 10.04.
For this guide I will use Darkys Rom v10.1, however it should work for all ROMs that come with the correct files, as shown below.

Installing Heimdall

First install the Qt Gui libraries:

 sudo apt-get install libqtgui4

Once that’s installed head over to the heimdall website and download heimdall and the frontend for it, here I went for version 1.1.1 as the latest version (as of writing this guide 1.2.0 does not have a frontend).

Here simply download the .deb file and run it once it’s downloaded, you should be able to install them no problem.

(direct links for the version used in this guide)
Heimdall – https://github.com/downloads/Benjamin-Dobell/Heimdall/heimdall_1.1.1-1_i386.deb
Heimdall-frontend – https://github.com/downloads/Benjamin-Dobell/Heimdall/heimdall-frontend_1.1.1-1_i386.deb

Getting The Files

Download the ROM you wish to flash your phone with, for example download Darky’s Ressurection v10.1.

Extract Darky_Resurrection_10.1_i9000.zip
Inside also extract Darky_Resurrection_10.1.tar

You should have the following files:

Darky_Resurrection_10.1_i9000 (folder)

Darky_Resurrection_10.1 (folder)
- boot.bin
- cache.rfs
- dbdata.rfs
- factoryfs.rfs
- modem.bin
- param.lfs
- Sbl.bin
- zImage
Odin3 v1.3,exe
Odin3 v1.7.exe
s1_odin_20100512.pit

Preparing Your Phone

Make sure you have full battery and disabled all lagfixes.

Flashing The Phone

Press Alt+F2 and then type “heimdall-frontend” and hit enter.

Add the files to the correct heidmall options as so:

Repartition

PIT : s1_odin_20100512.pit

PDA/Code

FactoryFS : factoryfs.rfs
Kernel(zImage) : zImage
Param.lfs : param.lfs
Primary BootLoader : boot.bin
Secondary Bootloader : Sbl.bin

CSC

Cache : cache.rfs
Database Data : dbdata.rfs

Other

Modem : modem.bin
Recovery : –

Finally put your phone into download mode.

Once your phone is in downloadd mode, make sure it’s connected via USB and then press start on Heimdall.

After a few minutes your Heimdall will say Finished. Boom you’re done. Just wait for your phone to finish doing whatever it’s doing and you should end up back at the home screen soon enough.

GitHub: Agent admitted failure to sign using the key.

Upon testing my GitHub setup on my home computer I got the following error after inputting this:

ssh git@github.com

Returned:

Agent admitted failure to sign using the key.
Permission denied (publickey).

You’ll need to run:

ssh-add ~/.ssh/id_rsa

Make sure to enter the passphrase for the ssh key you generated.

GNOME 3 – Delete Key Not Deleting/Working in Nautilus

In GNOME 3 it seems that the keyboard shortcut to delete a file in Nautilus is actually Ctrl+Delete, this is fine I guess if it’s trying to stop people accidentally deleting files or something but it’s pretty annoying.

To change the keyboard shortcut from Ctrl+Delete back to the usual Delete do the following:

Open a terminal and type:

dconf-editor

If you don’t have it, install it the usual way.

In the application that just opened, on the sidebar click:

org > gnome > desktop > interface

And check the box entitled: can-change-accels.

Now, leave this window open and open up Nautilus.

Select a file that you want deleting and then click on Edit in the Nautilus menu, hover over the Move To Trash button and here press the button you wish to assign to the action, so for example Delete. You may have to press it twice (the first time it will remove the old key-binding and the second will assign it the new one.)

Go back to dconf-editor and uncheck the can-change-accels option to stop any other keyboard shortcuts being changed and you’re all done!

Alex Sleat

Archive for the ‘Linux’ Category

Xfce4 Installed on Ubuntu 11.10, Global Menu Remains.

How to Install the ‘gnome-shell-extensions-mediaplayer’ Extension

Installation:

1. First you’ll need to grab some dependencies:

2. Next download the files from the git repository as below (this will download the folder to whatever directory you’re currently in, in terminal):

3. Once it’s finished download (it shouldn’t take too long it’s only about 2.30MB as of writing this guide), you’ll want to install using the following commands:

4. That’s it, it’s installed. Next you’re going to want to enable it, run gnome-tweak-tool and under extensions slide the newly installed extension to ON and it should appear next to the “Universal Access Settings” in the top right.

Ubuntu requires CD for software (installs and updates)

One Line IP Address Bash Command

Downloading all your Facebook Photos for Google Plus – In Linux

Through Facebook Route:

The PhotoGrabber Option:

ROS: Publishing and Subscribing to Arrays

Publishing:

Subscribing:

Steam in Wine, Repeated Windows

Fix:

Installing Wine:

Flashing Samsung Galaxy S (I9000) ROMs with Heimdall

Installing Heimdall

Getting The Files

Preparing Your Phone

Flashing The Phone

Repartition

PDA/Code

CSC

Other

GitHub: Agent admitted failure to sign using the key.

GNOME 3 – Delete Key Not Deleting/Working in Nautilus

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Archive for the ‘Linux’ Category

Installation:

1. First you’ll need to grab some dependencies:

2. Next download the files from the git repository as below (this will download the folder to whatever directory you’re currently in, in terminal):

3. Once it’s finished download (it shouldn’t take too long it’s only about 2.30MB as of writing this guide), you’ll want to install using the following commands:

4. That’s it, it’s installed. Next you’re going to want to enable it, run gnome-tweak-tool and under extensions slide the newly installed extension to ON and it should appear next to the “Universal Access Settings” in the top right.

Through Facebook Route:

The PhotoGrabber Option:

Publishing:

Subscribing:

Fix:

Installing Wine:

Installing Heimdall

Getting The Files

Preparing Your Phone

Flashing The Phone

Repartition

PDA/Code

CSC

Other

About

Professional Profile

My Projects

Tag Cloud

Categories

Friends

Disclaimer