How can I find the version of Ubuntu that is installed?

Question

I installed some version of Ubuntu on my VMware, but I don't know what version exactly it is. How can I find it out?

Answer 1

Your version of Ubuntu can be determined by opening System Settings and then opening the System Info or Details (from 12.04) section:

This page will also tell you whether you have the 32- or 64-bit version of Ubuntu installed, as well as what processor and graphics you have, the amount of RAM installed, and your disk capacity.

You can get this info from a terminal with the command:

lsb_release -a

Credit in part to htorque and WarriorIng64

[Note: for versions before 11.10, e.g. 11.04 this is not available this way, but see Roland's answer below for workable option (basically use the 'System Monitor' icon instead]

Answer 2

Apart from:

• lsb_release -a and

• cat /etc/issue ,

you can also see the version in the GNOME System Monitor (press Alt + F2, type gnome-system-monitor, and hit Enter):

Answer 3

In Ubuntu 11.10 onwards, the version of Ubuntu installed can be found by entering System Settings > System Info:

This page will also tell you whether you have the 32- or 64-bit version of Ubuntu installed, as well as what processor and graphics you have, the amount of RAM installed, and your disk capacity.

Answer 4

$ lsb_release -r
Release:        10.04

$ lsb_release -c
Codename:       lucid

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 10.04.2 LTS
Release:        10.04
Codename:       lucid

$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=10.04
DISTRIB_CODENAME=lucid

"LSB" means Linux Standard Base. It is a joint project of several Linus distributions. It's goal is to develop and promote a set of open standards that will increase compatibility among Linux distributions.

Answer 5

Quite a few ways -

In command line:

1. lsb_release -a ▸ exact release name, version etc.
2. cat /etc/issue ▸ formal release name
3. cat /etc/issue.net ▸ cleaner version of previous one
4. cat /etc/debian_version ▸ will give you the Debian code name
5. cat /proc/version ▸ will give you quite a lot of info about your kernel, when was it compiled, which gcc version has been used etc.
6. uname -a ▸ will tell you about your kernel info, plus arch (i386 ▸ 32 bit, x86_64 ▸ 64 bit)

If you like GUI more than command line, the System page on "System Monitor" gnome-system-monitor application should give you more than enough info. Release name, architecture variant, cores in the system, RAM available, and the space available on the root file system.

Answer 6

To find this information graphically, open the system monitor. The information you want is on the first tab: (NB: You cannot tell what stage of development it is at!)

Also note mine is not saying "development branch", so the best way to tell what state your system was at when you installed it, is to know what you download :)!

Answer 7

Another way, from 2 starting points:

1. From the web browser’s address bar: ghelp:about-ubuntu
2. Run this command (Alt + F2): gnome-help ghelp:about-ubuntu

Both of them have the same effect as using the Main menu > System > About Ubuntu. They open the “Display application and GNOME system help” in a page giving the same information such as https://help.ubuntu.com/10.04/about-ubuntu/C/index.html (in the language in which you are using Ubuntu)