Debian upgrade from 7.x wheezy to 8 jessie

Debian Project released the stable release of Debian 8 on April 25th 2015 and the new project code name is jessie, After almost 24 months of constant development. which will be supported for the next 5 years. Debian 8 ships with a new default init system systemd. lot of improvement on UEFI (“Unified Extensible Firmware Interface”) support. It offers support for two new architectures, arm64 and ppc64el.

What’s new in Debian 8

  • Apache 2.4.10
  • Asterisk 11.13.1
  • GIMP 2.8.14
  • GNOME 3.14
  • GNU Compiler Collection 4.9.2
  • Icedove 31.6.0
  • Iceweasel 31.6.0esr
  • KDE 4.11.13
  • LibreOffice 4.3.3
  • Linux kernel 3.16.7-ckt9
  • MariaDB 10.0.16
  • MySQL 5.5.42
  • Nagios 3.5.1
  • OpenJDK 7u75
  • Perl 5.20.2
  • PHP 5.6.7
  • PostgreSQL 9.4.1
  • Python 2.7.9 and 3.4.2
  • Samba 4.1.17
  • Tomcat 7.0.56 and 8.0.14
  • Xen Hypervisor 4.4.1
  • Xfce 4.10
  • more than 43,000 other ready-to-use software packages, built from nearly 20,100 source packages.
  • For more details
  • Note : 1) Don’t forget to take backup of your important/valuable data. If something goes wrong we will install freshly and restore the data.
    2) Upgrade will take time (1074MB need to download for debian 8 jessie upgrade) based on your Internet connection

    1) Checking the current version of my Desktop

    See my current desktop version in the below snapshot.
    debian-8-upgrade-jessie-1

    2) Backup the repository file

    Use the below command to backup your repository file.

    [email protected]:~$ cp /etc/apt/sources.list /etc/apt/sources.list.bk
    

    3) Modify the repository file

    use the below command to replace “wheezy” with “jessie”.

    [email protected]:~$ sudo sed -i 's/wheezy/jessie/g' /etc/apt/sources.list
    

    4) Run upgrade Debian 7.x to 8

    Now, its time to upgrade your Operating system from “wheezy” to “jessie”.

    [email protected]:~$ sudo apt-get update
    [email protected]:~$ sudo apt-get upgrade
    [email protected]:~$ sudo apt-get dist-upgrade
    

    Note: You will get few popup, just accept to complete the installation.

    5) Checking the upgraded version of my Desktop

    See my upgraded desktop version in the below snapshot.
    debian-8-upgrade-jessie-2
    Go ahead and play with JESSIE and update your feedback.

Magesh Maruthamuthu

Love to play with all Linux distribution

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