[Linux-bruxelles] INFO+URL - How To Install Ubuntu 12.04 On Non-PAE Capable Hardware

Aldo info at brlspeak.net
Mar 1 Jan 13:02:59 CET 2013

(Re)Bonjour Jacques / Erick,
sur le non-pae j'ai ceci dont voici le snip fyi:


How To Install Ubuntu 12.04 On Non-PAE Capable Hardware

Physical Address Extension (PAE) is a feature to allow (32-bit) x86  
processors to access a physical address space (including random access  
memory and memory mapped devices) larger than 4 gigabytes.

Ubuntu 12.04 (as well as Kubuntu 12.04) uses the PAE Linux kernel by  
default for 32bit ISOs so old computers that don't support PAE can't boot 
the latest Ubuntu version. But there is a way to install Ubuntu 12.04 LTS 
Precise Pangolin on computers without PAE support: using the non-PAE 
netboot Minimal ISO (there are also some alternatives, see below).

The non-PAE netboot mini ISO lets you install the non-PAE kernel and the  
desktop environment you want: you can select to install Ubuntu Desktop  
(with Unity), Kubuntu Desktop and so on. One note though: since the  
minimal CD will download packages from online archives at installation  
time instead of providing them on the install CD itself, you need a  
working Internet connection during the installation.

Install Ubuntu 12.04 LTS on non-PAE capable systems using the netboot  
minimal ISO

Download mini.iso write it on a CD or USB stick and boot from the ISO like 
with the regular Ubuntu ISO and select "Install":

The installer will now ask you a bunch of questions regarding the  
keyboard, etc. - select the options you want (use TAB to move through  
fields, SPACE to select and ENTER to activate buttons / continue). If you 
use a proxy, you'll be asked to enter it before the installation starts:

Basically, all the info available in the regular installer are also  
available for the mini ISO, like selecting your country, choose if you  
want to encrypt you home directory, partition the hard disk and so on:

After partitioning your hard disk, the installer will start downloading  
the core packages:

If some packages fail to download, you can select to continue and at the  
end of this step, you'll get to the Ubuntu Installer Main Menu where you  
can select "Install the base system" so the installer will try to  
redownload the packages for which the download failed:

Next, you'll be asked to select the Linux kernel you want to use - here,  
select "linux-generic":

The next important step is to select the desktop environment you want to  
use. Select it using the SPACE key (don't just press enter or else you'll 
end up with the core system only and without a graphical desktop  

    for Unity, select "Ubuntu Desktop"
    for KDE / Kubuntu, select "Kubuntu Desktop"

Next, make sure you install the GRUB bootloader (by simply selecting "Yes" 
when you reach the screen below):

And that's about it, after you complete the above steps, you should have a 
working Ubuntu 12.04 LTS (with Unity or KDE) that runs on non-PAE  
supported hardware.

You can also watch a video with the whole non-PAE Mini ISO Ubuntu 12.04  
installation process, below:


Like I was telling you above, using the non-PAE mini ISO isn't the only  
way to install Ubuntu 12.04 Precise Pangolin on computers that don't  
support PAE. You can also install Xubuntu or Lubuntu since both come with 
non-PAE Linux kernels, and if you don't want to use XFCE or LXDE, simply 
open a terminal and type:

- for Unity (and all the default Ubuntu packages):

sudo apt-get install ubuntu-desktop

- for KDE:

sudo apt-get install kubuntu-desktop


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