Ubuntu Basics

• http://superuser.com/questions/154333/what-is-the-difference-between-debian-and-ubuntu
• https://wiki.ubuntu.com/Ubuntu/ForDebianDevelopers

Checking Ubuntu Version

• https://help.ubuntu.com/community/CheckingYourUbuntuVersion

lsb_release

• (Chroma recommends Ubuntu 11.04)

aracity@aracity-desktop:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 9.04
Release:        9.04
Codename:       jaunty

Ubuntu Lifecycle

Ubuntu releases die after 18 months, with backing repositories going offline, so apt-get update will stop working and will not be able to install updates.

• http://www.canonical.com/enterprise-services/support/server/support-life-cycles

Diagram of lifecycles.

• https://wiki.ubuntu.com/LTS

After death Ubuntu

• https://help.ubuntu.com/community/UpgradeNotes
• https://help.ubuntu.com/community/EOLUpgrades/Jaunty

Update sources.list (30 Aug 2013)

• http://askubuntu.com/questions/48025/what-to-do-when-cant-update-anymore-with-apt-get

Edit “/etc/apt/sources.list” (with root permissions) substituting all the links: “http://archive.ubuntu.com/...” for “http://old-releases.ubuntu.com/...”

Reconnecting to a backing old-releases repository, in order for apt-get to work again.:

aracity@aracity-desktop:/etc/apt$ sudo cp sources.list sources.list.apr15-2010
aracity@aracity-desktop:/etc/apt$ sudo cp sources.list sources.list.new
aracity@aracity-desktop:/etc/apt$ sudo perl -pi -e 's,tw.archive.ubuntu.com,old-releases.ubuntu.com,g' sources.list.new
aracity@aracity-desktop:/etc/apt$ sudo perl -pi -e 's,security.ubuntu.com,old-releases.ubuntu.com,g' sources.list.new
aracity@aracity-desktop:/etc/apt$ diff sources.list sources.list.new
5,6c5,6
< deb http://tw.archive.ubuntu.com/ubuntu/ jaunty main restricted
< deb-src http://tw.archive.ubuntu.com/ubuntu/ jaunty main restricted
---
> deb http://old-releases.ubuntu.com/ubuntu/ jaunty main restricted
> deb-src http://old-releases.ubuntu.com/ubuntu/ jaunty main restricted
10,11c10,11
aracity@aracity-desktop:/etc/apt$

aracity@aracity-desktop:~$ sudo apt-get update
...
Fetched 10.7MB in 11s (928kB/s)
Reading package lists... Done
aracity@aracity-desktop:~$