How to enable hibernation in Ubuntu 12.04 lts [Solved]

After upgrading to Precice Pangolin - Ubuntu 12.04 lts, I was unable to hibernate my machine by default. I googled it and found a solution(It worked for me.)

To check whether hibernate is supported, Open a terminal and type:

pm -hibernate

after entering this, your system will attempt a hibernate.

to enable hibernation, open a terminal and type the following line and press enter.

sudo gedit /etc/polkit-1/localauthority/50-local.d/com.ubuntu.enable-hibernate.pkla

insert the following content

[Re-enable hibernate by default]
Identity=unix-user:*
Action=org.freedesktop.upower.hibernate
ResultActive=yes

save and exit.

restart the system once and hibernation will be enabled. 

How to Upgrade ubuntu 11.04/10.04 to Ubuntu 12.04 easy guide

Hi all, Many of the users follow the custom of installing a fresh copy of ubuntu 12.04 by erasing the previous installation. If you want to keep your files and compatible installations from your previous installation still here in your new installation, you must go for an upgrade instead of a new installation.

99 percentage of upgrades leads to success, but if you have ultimate important information., please back up before starting the process. this guide is for the ones who like to choose the upgrade from USB option.

You have to download an ISO image from ubuntu's  download page. and then go to your previous installation, choose administration->create a startup disk.

This will show a window where you can select the image and the target usb disk.

Then, proceed with the steps and the system will prompt you to enter password for some two three times.

The process of creating a startup disk  may take a few minutes to complete. after the startup disk creation finished, restart your system with boot from usb enabled.

After some time the machine will boot from the startup disk, and will show a live session of ubuntu running in you machine.

Bowse through the menu's and check whether everything is working fine.

There will be an icon Install ubuntu in your live session's desktop you can trigger the installation process by double clicking it.

After few steps it will show the below screen.

Do not forget to select the upgrade option

 Choose the upgrade option as shown in the picture and proceed with the installation. it is preferred to connect to the Internet as well as power source to make the installation smooth. if you are connected to the Internet, Some additional plug-ins and drivers may be downloaded. bu this will make the installation bit time consuming because the Os may download some updates if there is a working net connection.

AUDACITY MP3 EXPORTING PROBLEM?

To export mp3 files in audacity we need a special mp3 library called lame. To install this, it is very simple follow these procedures to export mp3 files in audacity and enjoy a great mp3 experience.

1. Open the “Synaptic” software-package manager.

• In GNOME (the default desktop environment for Ubuntu and many other systems), you can find it by clicking on the “System” menu at the top of the screen, and then choosing “Administration”.

• In KDE (the desktop environment for Kubuntu and many other systems), there will be a similar menu accessible from the bottom-left of the screen.

• In all desktop environments, you can open up a command-line terminal and type “gksu synaptic” or “sudo synaptic”.
• Enter your Ubuntu user password when asked for it.
• In the Synaptic window, choose “Settings”, then “Repositories”.
• In the "Ubuntu Software" tab, check the box for Software restricted by legal or copyright issues (“multiverse”), and then the Close button
• Back in the main Synaptic Window, type “lame” in the "Quick search" box
• The search results will show the packages “lame” and “libmp3lame0” at the top of the list. Mark both for installation (by double-clicking).
• Click the "Apply" button, and on “OK” to any warnings that come up.
• The LAME software will automatically download and install. Close the Synaptic window when it has finished.

Upgrade ubuntu to 12.04

Ubuntu provides the flexibility of upgrading from an older version to a new supported version. You don't need to install it fresh to use  new Ubuntu this guide helps you to upgrade to Ubuntu 12.04 from an older version.You can directly upgrade to Ubuntu 12.04 LTS ("Precise Pangolin") from Ubuntu 11.10 ("Oneiric Ocelot") or 10.04 LTS ("Lucid Lynx").

Why upgrade

Why should you upgrade instead of performing a clean install of a supported version? Some don't like to perform new installations when there is a possibility to upgrade. The advantage of this is that you can keep your current configuration without having to change much. This is often the case in production environments where you don't want to lose a machine just because it needs a higher OS version.

Upgrade from 11.10 to 12.04 LTS and 10.04 LTS to 12.04 LTS

Network Upgrade for Ubuntu Desktops 11.10 to 12.04 LTS (Recommended)

You can easily upgrade over the network with the following procedure.

1. Run the Update Manager application from the Unity Dash
2. In Update Manager, click the Settings... button, and enter your password to start the Software Sources application.
3. Select the sub menu Updates from the Software Sources application.
4. Check the "Release upgrade - Show new distribution releases" drop down to make sure "Normal releases" is selected, and change it if otherwise.
5. Close the Software Sources application and return to Update Manager.
6. In Update Manager, click the Check button to check for new updates.
7. If there are any updates to install, use the Install Updates button to install them, and press Check again after that is complete.
8. A message will appear informing you of the availability of the new release.
9. Click Upgrade.
10. Follow the on-screen instructions.

Network Upgrade for Ubuntu Desktops 10.04 LTS to 12.04 LTS (Recommended)

Note that the page under https://wiki.ubuntu.com/PrecisePangolin/ReleaseNotes/UbuntuDesktop#Upgrading_from_Ubuntu_10.04_LTS_to_Ubuntu_12.04_LTS says: "It is generally recommended that users of Ubuntu 10.04 LTS wait until the first point release, due in July, before upgrading." Follow the instructions there if you want to upgrade earlier since the following instructions will probably not work until then.

You can easily upgrade over the network with the following procedure.

1. Open the Update Manager application from the System → Administration menu.
2. In Update Manager, click the Settings... button, and enter your password to start the Software Sources application.
3. Select the sub menu Updates from the Software Sources application.
4. Check the "Release upgrade - Show new distribution releases" drop down to make sure "Long term support releases only" is selected, and change it if otherwise.
5. Close the Software Sources application and return to Update Manager.
6. In Update Manager, click the Check button to check for new updates.
7. If there are any updates to install, use the Install Updates button to install them, and press Check again after that is complete.
8. A message will appear informing you of the availability of the new release.
9. Click Upgrade.
10. Follow the on-screen instructions. 

Upgrading Using the Alternate CD/DVD

Use this method if the system being upgraded is not connected to the Internet.

1. Download the alternate installation CD from http://releases.ubuntu.com/precise/
2. Burn the ISO to a CD and insert it into the CD-ROM drive of the computer to be upgraded.
   • If the ISO file is on the computer to be upgraded, you could avoid wasting a CD by mounting the ISO as a drive with a command like (please make sure that the path to the iso file in the second command reflects where you file is located in your computer, also the Desktop folder may have a different name if you are using Ubuntu in a language different than English):

     sudo mkdir -p /media/cdrom
     sudo mount -o loop ~/Desktop/ubuntu-12.04-alternate-i386.iso /media/cdrom

3. A dialog will be displayed offering you the opportunity to upgrade using that CD.
4. Follow the on-screen instructions.

If the upgrade dialog is not displayed for any reason, you may also run the following command using Alt+F2:

gksu "sh /media/cdrom/cdromupgrade"

Or in Kubuntu run the following command using Alt+F2:

kdesudo "sh /media/cdrom/cdromupgrade"

Upgrading from a Torrent

If you're familiar with torrents and have an ISP that doesn't limit them, you can download the upgrade much more quickly. You'll also be sharing your bandwidth with other Ubuntu users and helping to reduce the load on the servers, which is especially beneficial on release days when the server overload causes problems.

Just visit http://releases.ubuntu.com/12.04/, and download the appropriate torrent file for the alternate installation CD, found in the list towards the bottom of the page. (It will have a filename like ubuntu-12.04-alternate-i386.iso.torrent.) Load it into your BitTorrent client, and after it is done downloading the ISO, follow the alternate CD upgrade instructions.

Detailed instructions in a blog post and in a forum thread.

Ubuntu 12.04 review video

Here is the link for a popular video review of ubuntu 12.04 precise pangoline

http://www.google.co.in/url?sa=t&source=web&cd=8&ved=0CG8QtwIwBw&url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3Dh4tBDam3ttI&ei=3LmmT-CyFIW8rAelxJXiAQ&usg=AFQjCNHqL8fQmdSDr3MAyE5wr7f3p9-zeQ&sig2=L672wLrmcPUAlYUj74LKIw

Ubuntu 12.04 released!

Its precise stylish and secure. Much awaited ubuntu 12.04 stable version is released. Happy news is this LTS version comes with handful of new features along with five years official support. Here is the link to the release homepage.

Ubuntu 12.04 precice pangolin features.

Ubuntu 12.04 precise pangolin is expected to be releasing tomorrow, sources confirmed that 12.04 LTS is coming with loads of new features along with a fresh Kernel.

The Head Up Display or HUD is the prime change in Upcoming 12.04 LTS

HUD is a new way to quickly search and access any desktop application’s and indicator’s menu,” HUD can be accessed by pressing the Alt key and typing in a description of what you want to do. The software will then return a set of corresponding entries, including some fuzzy matching, the project team says. Over time, it also learns from your previous choices to make the search more and more accurate.

Power Savings

Definitely power saving is the important change after HUD. 12.04 enabled with RC6--the technology that allows GPUs to go into a very low power consumption state when the GPU is idle--is now enabled by default for Sandy Bridge systems. The result can be improvements of between 40 and 60 percent in power usage under idle loads.

Clickpad or Trackpad support

Ubuntu 12.04 now includes support for ClickPads, On which the physical button is integrated into the trackpad surface. Coming in Ubuntu's next release will be support for Apple Magic Trackpads and more devices, the Ubuntu team says.

Improved language support

When users install new software through the Ubuntu Software Center, the corresponding language support packages--including translations and spell check modules--are now installed automatically as well. reduces user effort to install them manually after software installation.

New Kernel

Stable release of Precise Pangolin,  includes the 3.2.0-17.27 Ubuntu kernel, which is based on version 3.2.6 of the upstream stable Linux kernel.

Updated Unity 

In this new release, the "Appearance" panel in the software's system settings lets you more easily configure some properties of Unity. For bookmark users, the Unity launcher now also includes Nautilus quicklist support.

Along with the above changes Ubuntu 12.04 coming with New version of Libre office and as usual, Rhythmbox as Default music Player