Archives For Ubuntu 14.04

upgrade Ubuntu 14.04.5

The Ubuntu Team has announced the release of Ubuntu 14.04.5 LTS. It’s the fifth and final point release that includes new hardware enablement stack (HWE) from Ubuntu 16.04 LTS.

The Ubuntu team is pleased to announce the release of Ubuntu 14.04.5 LTS (Long-Term Support) for its Desktop, Server, Cloud, and Core products, as well as other flavours of Ubuntu with long-term support.

We have expanded our hardware enablement offering since 12.04, and with 14.04.5, this point release contains an updated kernel and X stack for new installations to support new hardware across all our supported architectures, not just x86.

As usual, this point release includes many updates, and updated installation media has been provided so that fewer updates will need to be downloaded after installation. These include security updates and corrections for other high-impact bugs, with a focus on maintaining stability and compatibility with Ubuntu 14.04 LTS.

Ubuntu 14.04.5 image

Upgrade to Ubuntu 14.04.5:

Ubuntu 14.04 users can easily upgrade to the 14.04.5 point release by running a regular system update via Software Updater.

Or run the commands in terminal:

sudo apt-get update && sudo apt-get upgrade

Note that the updated hardware enablement stack, Kernel 4.4 and X graphics stack from 16.04, will be available through the update only for those who installed Ubuntu 14.04 using the 14.04.2 or newer disc image.

Those who installed Ubuntu 14.04 from the original or 14.04.1 disc image will keep the original Trusty stack. Anyone wishing to opt into the new Kernel and X graphics stack may do so by running the command below in terminal:

sudo apt-get install --install-recommends linux-generic-lts-xenial xserver-xorg-core-lts-xenial xserver-xorg-lts-xenial xserver-xorg-video-all-lts-xenial xserver-xorg-input-all-lts-xenial libwayland-egl1-mesa-lts-xenial

For Sever edition, run this command instead:

sudo apt-get install --install-recommends linux-generic-lts-xenial

Ubuntu-tips

This is quick tutorial that shows you how to install and setup a Telnet server in Ubuntu 14.04 LTS.

TELNET (TELetype NETwork) is a network protocol used on the Internet or local area network LAN connections. It allows one computer to access a command-line interface on a remote host.

Telnet is insecure because the communication is not encrypted, your password and all other data will be transmitted as clear text. If possible avoid Telnet, and use Secure Shell (SSH) instead.

If you really want to enable the Telnet in Ubuntu, just run the command below in text console (terminal) to install Telnet server:

sudo apt-get install xinetd telnetd

Install Telnet Server in Ubuntu

The Telnet service is started automatically once the installation is done. And you can either run telnet serverip or use a Telnet client (PuTTy, SecureCRT, etc.) to access this server.

Telnet Login

To change the port (default is 23), edit the /etc/services file with your favorite text editor. Find out and change the number in the line below:

telnet        23/tcp 

To apply changes, you have to restart the service by running the command below:

sudo /etc/init.d/xinetd restart

More configurations, see this document.

Linux Mint 17 Rebecca

Linux Mint Team finally announced the release of 17.1 “Rebecca” Cinnamon and MATE editions, which is a long term support release based on Ubuntu 14.04 that will be supported until 2019.

According to the release note, the Linux Mint 17.1 “Rebecca” comes with updated software and brings refinements and many new features to make your desktop even more comfortable to use.

Linux Mint 17.1 features:

  • Cinnamon 2.4 / MATE 1.8
  • MDM 1.8
  • Out of the box support for Compiz (MATE edition)
  • Linux kernel 3.13
  • Ubuntu 14.04 package base
  • Update Manager now groups packages together according to their source package.
  • Redesigned UI of Language Settings.
  • Redesigned Login Window Preferences.
  • System, Artwork, and Other Improvements.

Linux Mint 17.1

Both the Linux Mint 17 and 17.1 RC can upgrade to the new release through Updater Manager. For the 17.1 RC release just install any level 1 update you haven’t installed already.

ISO download link: www.linuxmint.com/download.php
Release notes: blog.linuxmint.com/

Speed Up the Unity Dash response

This quick tutorial shows how to improve your Ubuntu experience by speeding up the Unity Dash (search utility) response in Ubuntu 14.10 or Ubuntu 14.04.

The Unity Dash

1. Remove undesired search results

By default, the Dash displays Unity lens, scopes, Amazon online search results, and records file and application usage. You can disable some of them via below tips:

  • Disable online search results:

    Launch System Settings and go to Security & Privacy, under “Search” tab turn off the switch which says “When searching in the Dash: include online search results”

    Disable Online Search Results

  • Stop recording file and app usage:

    Also launch System Settings and go to Security & Privacy, under “Files & Applications” tab first clear records and then turn off the switch:

    Stop recording file and app usage

  • Remove unwanted Unity lens, scopes:

    Open Ubuntu Software Center and search for unity-scope. In the results, check the information of installed scopes and remove the scopes you don’t need.

    unity-scopes

    Do same to Unity lens by searching unity-lens.

2. Reduce Graphics Settings.

First click the link below to bring up Ubuntu Software Center and click install Compiz Config Settings Manager.

Click to install CCSM

Then launch CCSM from the Unity Dash and do below changes:

  • Go to Ubuntu Unity Plugin page under the Desktop category. Select No Blur from the drop-down box for Dash Blur.

    No Dash Blur

  • Go back and then go to OpenGL settings page under General category. Select Fast from the drop-down box for Texture Filter.

    texure-filter-fast

    Note that this change would affect the whole Ubuntu System graphics and not Unity alone.

To apply all the changes, restart your computer. Enjoy!

RawTherapee Raw Image Processor

The open source raw image processing program RawTherapee 4.2 has been released recently with new features and speed, stability and memory usage optimizations.

RawTherapee is an advanced program for developing raw photos and for processing non-raw photos. It is non-destructive, makes use of OpenMP, supports all the cameras supported by dcraw and carries out its calculations in a high precision 32bit floating point engine. RawTherapee supports JPEG, PNG, and TIFF as output format for processed photos.

RawTherapee 4.2 in Ubuntu 14.04

What’s new in RawTherapee 4.2:

  • RawTherapee-4.2 includes many speed, precision, stability and memory usage optimizations. As such, users of 32-bit operating systems may now find that they can enjoy more stability while using the most memory intensive tools. Of course users of 64-bit systems benefit from this as well. Refer to the full changelog for more information.
  • Powerful color toning tool.
  • Curve control of luminance noise reduction.
  • Median filter in the noise reduction tool.
  • Film simulation tool using Hald CLUT pattern files.
  • Command-line option to define bit depth of output TIFF/PNG file.
  • Multiple improvements to dead/hot pixel handling, see RawPedia.
  • Filename of currently opened image shown in the titlebar.
  • Clip control for the flat-field correction tool.
  • Demosaic method “Mono” for monochrome cameras, and “None” for no demosaicing.
  • Copy/paste processing profile keyboard shortcuts for right-handed users using Ctrl/Shift-Insert.
  • Update to dcraw 9.22 1.467
  • New or improved support for:
    • Canon EOS 7D
    • Canon EOS 7D Mark II
    • Canon PowerShot G7 X
    • Canon PowerShot SX60 HS
    • Fujifilm cameras using the X-Trans sensor
    • Fujifilm X30
    • Hasselblad H4D-31
    • Hasselblad H4D-50
    • Hasselblad H4D-60
    • Hasselblad H5D-40
    • Hasselblad H5D-50c
    • Mamiya Leaf Credo 40
    • Mamiya Leaf Credo 50
    • Mamiya Leaf Credo 60
    • Mamiya Leaf Credo 80
    • Monochrome cameras such as Leica Monochrome
    • Nikon D610
    • Nikon D700
    • Nikon D750
    • Nikon D800E
    • Nikon D810
    • Panasonic Lumix DMC-FZ1000
    • Panasonic Lumix DMC-GM5
    • Panasonic Lumix DMC-LX100
    • Phase One IQ250
    • Phase One P40
    • Phase One P65+
    • Sony Alpha ILCE-5100
    • Sony NEX-C3

Install / Upgrade RawTherapee in Ubuntu 14.04:

Thanks to Dariusz Duma, the binary package has been made into PPA, available for Ubuntu 14.04 LTS and Linux Mint 17.

To add the PPA and install RawTherapee 4.2, press Ctrl+Alt+T to open terminal, run the commands below one by one:

sudo add-apt-repository ppa:dhor/myway

sudo apt-get update

sudo apt-get install rawtherapee

Install RawTherapee from PPA

For those who don’t want to add the PPA, grab the .deb installer directly from the Launchpad Page.