Difference between revisions of "Ubuntu 12.04 Multiarch"

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Ubuntu 12.04.4 LTS MultiArch (i386 <-> ARM Hard float)
+
Ubuntu 12.04.4 LTS MultiArch (i386 &lt;-&gt; ARM Hard float)  
  
−
We will learn about configure & install multi-arch packages in our host machine Ubuntu 12.04.4 LTS.
+
We will learn about configure &amp; install multi-arch packages in our host machine Ubuntu 12.04.4 LTS. This is required when we wish cross compile software using our host machine under Ubuntu/debian environment.  
−
This is required when we wish cross compile software using our host machine under Ubuntu/debian environment.
 
  
 
= Overview  =
 
= Overview  =
  
−
What we learn? Configure our environment and install cross packages in Ubuntu, after install the packages we will cross compile programs using our ubuntu host.
+
What we learn? Configure our environment and install cross packages in Ubuntu, after install the packages we will cross compile programs using our ubuntu host.  
  
 
__TOC__  
 
__TOC__  
Line 12: Line 11:
 
= Host Enviroment  =
 
= Host Enviroment  =
  
−
This how to is done using 12.04.4 LTS (32 bits) in your host, you can download it from our server using this [http://downloads.isee.biz/pub/igepv5_ce/devel/iso/ubuntu-12.04.4-desktop-i386.iso link]&nbsp;or directly from Ubuntu (Canonical) website. You can install it in a Virtual Machine enviroment using any Virtualization software or directly in your PC.
+
This how to is done using 12.04.4 LTS (32 bits) in your host, you can download it from our server using this [http://downloads.isee.biz/pub/igepv5_ce/devel/iso/ubuntu-12.04.4-desktop-i386.iso link]&nbsp;or directly from Ubuntu (Canonical) website. You can install it in a Virtual Machine enviroment using any Virtualization software or directly in your PC.  
  
−
== Host Configuration ==
+
== Host Configuration ==
−
We will modify dpkg & apt for use a multi arch environment but what extacly is a multi arch environment?
 
  
−
* https://help.ubuntu.com/community/MultiArch
+
We will modify dpkg &amp; apt for use a multi arch environment but what extacly is a multi arch environment?
  
−
In our case we will add the architecture ARM Hard float and after that we can install the packages or cross compile packages using our host machine.
+
*https://help.ubuntu.com/community/MultiArch
  
−
The first step is add the multi arch option in dpkg.
+
In our case we will add the architecture ARM Hard float and after that we can install the packages or cross compile packages using our host machine.  
  
−
Go to /etc/dpkg/dpkg.cfg.d  
+
The first step is add the multi arch option in dpkg.
−
and if the directory is empty you must create one file named: multi arch
+
 
−
and inside the file we will put this line:
+
Go to /etc/dpkg/dpkg.cfg.d and if the directory is empty you must create one file named: multi arch and inside the file we will put this line: foreign-architecture armhf
 +
 
 +
So this is the result:
 +
<pre>pwd
 +
 
 +
/etc/dpkg/dpkg.cfg.d
 +
 
 +
ls -al
 +
 
 +
mcaro@mcaro-vm-u12:/etc/dpkg/dpkg.cfg.d$ ls -al
 +
total 12
 +
drwxr-xr-x 2 root root 4096 May  8 10:25 .
 +
drwxr-xr-x 4 root root 4096 May  8 09:43 ..
 +
-rw-r--r-- 1 root root  27 May  8 10:25 multiarch
 +
 
 +
mcaro@mcaro-vm-u12:/etc/dpkg/dpkg.cfg.d$ cat multiarch
 
foreign-architecture armhf
 
foreign-architecture armhf
 +
</pre><div>Now we're ready for modify the apt repo sources for our wished new architecture, you should edit the file /etc/apt/sources.list and change the repositories as (I left here a sources.list sample file)</div><pre># deb cdrom:[Ubuntu 12.04.4 LTS _Precise Pangolin_ - Release i386 (20140204)]/ precise main restricted
 +
 +
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
 +
# newer versions of the distribution.
 +
deb [arch=i386] http://us.archive.ubuntu.com/ubuntu/ precise main restricted
 +
deb-src http://us.archive.ubuntu.com/ubuntu/ precise main restricted
 +
 +
deb [arch=armel,armhf] http://ports.ubuntu.com/ubuntu-ports precise main universe
 +
 +
## Major bug fix updates produced after the final release of the
 +
## distribution.
 +
deb [arch=i386] http://us.archive.ubuntu.com/ubuntu/ precise-updates main restricted
 +
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-updates main restricted
 +
 +
deb [arch=armel,armhf] http://ports.ubuntu.com/ubuntu-ports precise-updates main restricted
 +
 +
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
 +
## team. Also, please note that software in universe WILL NOT receive any
 +
## review or updates from the Ubuntu security team.
 +
deb [arch=i386] http://us.archive.ubuntu.com/ubuntu/ precise universe
 +
deb-src http://us.archive.ubuntu.com/ubuntu/ precise universe
 +
deb [arch=i386] http://us.archive.ubuntu.com/ubuntu/ precise-updates universe
 +
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-updates universe
 +
 +
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
 +
## team, and may not be under a free licence. Please satisfy yourself as to
 +
## your rights to use the software. Also, please note that software in
 +
## multiverse WILL NOT receive any review or updates from the Ubuntu
 +
## security team.
 +
deb [arch=i386] http://us.archive.ubuntu.com/ubuntu/ precise multiverse
 +
deb-src http://us.archive.ubuntu.com/ubuntu/ precise multiverse
 +
deb [arch=i386] http://us.archive.ubuntu.com/ubuntu/ precise-updates multiverse
 +
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-updates multiverse
 +
 +
## N.B. software from this repository may not have been tested as
 +
## extensively as that contained in the main release, although it includes
 +
## newer versions of some applications which may provide useful features.
 +
## Also, please note that software in backports WILL NOT receive any review
 +
## or updates from the Ubuntu security team.
 +
deb [arch=i386] http://us.archive.ubuntu.com/ubuntu/ precise-backports main restricted universe multiverse
 +
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-backports main restricted universe multiverse
 +
 +
deb [arch=i386] http://us.archive.ubuntu.com/ubuntu/ precise-security main restricted
 +
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-security main restricted
 +
deb [arch=i386] http://us.archive.ubuntu.com/ubuntu/ precise-security universe
 +
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-security universe
 +
deb [arch=i386] http://us.archive.ubuntu.com/ubuntu/ precise-security multiverse
 +
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-security multiverse
 +
 +
## Uncomment the following two lines to add software from Canonical's
 +
## 'partner' repository.
 +
## This software is not part of Ubuntu, but is offered by Canonical and the
 +
## respective vendors as a service to Ubuntu users.
 +
deb [arch=i386] http://archive.canonical.com/ubuntu precise partner
 +
deb-src http://archive.canonical.com/ubuntu precise partner
 +
 +
## This software is not part of Ubuntu, but is offered by third-party
 +
## developers who want to ship their latest software.
 +
deb [arch=i386] http://extras.ubuntu.com/ubuntu precise main
 +
deb-src http://extras.ubuntu.com/ubuntu precise main
  
−
So this is the result:
+
</pre><div>Take a note, the src packages be common for all architectures and it's not necessary to set the architecture.</div><div>We add the tags [arch=i386] or [arch=armhf] or if any repo provide more &nbsp;<span style="line-height: 1.1em;">[arch=armel,armhf]</span></div><div><span style="line-height: 1.1em;" />You should add your whised repositories there ...</div><div></div>

Revision as of 13:00, 20 May 2014

Ubuntu 12.04.4 LTS MultiArch (i386 <-> ARM Hard float)

We will learn about configure & install multi-arch packages in our host machine Ubuntu 12.04.4 LTS. This is required when we wish cross compile software using our host machine under Ubuntu/debian environment.

Overview

What we learn? Configure our environment and install cross packages in Ubuntu, after install the packages we will cross compile programs using our ubuntu host.

Host Enviroment

This how to is done using 12.04.4 LTS (32 bits) in your host, you can download it from our server using this link or directly from Ubuntu (Canonical) website. You can install it in a Virtual Machine enviroment using any Virtualization software or directly in your PC.

Host Configuration

We will modify dpkg & apt for use a multi arch environment but what extacly is a multi arch environment?

In our case we will add the architecture ARM Hard float and after that we can install the packages or cross compile packages using our host machine.

The first step is add the multi arch option in dpkg.

Go to /etc/dpkg/dpkg.cfg.d and if the directory is empty you must create one file named: multi arch and inside the file we will put this line: foreign-architecture armhf

So this is the result: 

pwd

/etc/dpkg/dpkg.cfg.d

ls -al

mcaro@mcaro-vm-u12:/etc/dpkg/dpkg.cfg.d$ ls -al
total 12
drwxr-xr-x 2 root root 4096 May  8 10:25 .
drwxr-xr-x 4 root root 4096 May  8 09:43 ..
-rw-r--r-- 1 root root   27 May  8 10:25 multiarch

mcaro@mcaro-vm-u12:/etc/dpkg/dpkg.cfg.d$ cat multiarch 
foreign-architecture armhf
Now we're ready for modify the apt repo sources for our wished new architecture, you should edit the file /etc/apt/sources.list and change the repositories as (I left here a sources.list sample file)
# deb cdrom:[Ubuntu 12.04.4 LTS _Precise Pangolin_ - Release i386 (20140204)]/ precise main restricted

  1.  See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
    2. 

  2.  newer versions of the distribution.


deb [arch=i386] http://us.archive.ubuntu.com/ubuntu/ precise main restricted
deb-src http://us.archive.ubuntu.com/ubuntu/ precise main restricted

deb [arch=armel,armhf] http://ports.ubuntu.com/ubuntu-ports precise main universe



    1.  Major bug fix updates produced after the final release of the
      2. 

    2.  distribution.


deb [arch=i386] http://us.archive.ubuntu.com/ubuntu/ precise-updates main restricted
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-updates main restricted

deb [arch=armel,armhf] http://ports.ubuntu.com/ubuntu-ports precise-updates main restricted



    1.  N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
      2. 

    2.  team. Also, please note that software in universe WILL NOT receive any
      3. 

    3.  review or updates from the Ubuntu security team.


deb [arch=i386] http://us.archive.ubuntu.com/ubuntu/ precise universe
deb-src http://us.archive.ubuntu.com/ubuntu/ precise universe
deb [arch=i386] http://us.archive.ubuntu.com/ubuntu/ precise-updates universe
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-updates universe



    1.  N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu 
      2. 

    2.  team, and may not be under a free licence. Please satisfy yourself as to 
      3. 

    3.  your rights to use the software. Also, please note that software in 
      4. 

    4.  multiverse WILL NOT receive any review or updates from the Ubuntu
      5. 

    5.  security team.


deb [arch=i386] http://us.archive.ubuntu.com/ubuntu/ precise multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ precise multiverse
deb [arch=i386] http://us.archive.ubuntu.com/ubuntu/ precise-updates multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-updates multiverse



    1.  N.B. software from this repository may not have been tested as
      2. 

    2.  extensively as that contained in the main release, although it includes
      3. 

    3.  newer versions of some applications which may provide useful features.
      4. 

    4.  Also, please note that software in backports WILL NOT receive any review
      5. 

    5.  or updates from the Ubuntu security team.


deb [arch=i386] http://us.archive.ubuntu.com/ubuntu/ precise-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-backports main restricted universe multiverse

deb [arch=i386] http://us.archive.ubuntu.com/ubuntu/ precise-security main restricted
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-security main restricted
deb [arch=i386] http://us.archive.ubuntu.com/ubuntu/ precise-security universe
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-security universe
deb [arch=i386] http://us.archive.ubuntu.com/ubuntu/ precise-security multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ precise-security multiverse



    1.  Uncomment the following two lines to add software from Canonical's
      2. 

    2.  'partner' repository.
      3. 

    3.  This software is not part of Ubuntu, but is offered by Canonical and the
      4. 

    4.  respective vendors as a service to Ubuntu users.


deb [arch=i386] http://archive.canonical.com/ubuntu precise partner
deb-src http://archive.canonical.com/ubuntu precise partner



    1.  This software is not part of Ubuntu, but is offered by third-party
      2. 

    2.  developers who want to ship their latest software.


deb [arch=i386] http://extras.ubuntu.com/ubuntu precise main
deb-src http://extras.ubuntu.com/ubuntu precise main
Take a note, the src packages be common for all architectures and it's not necessary to set the architecture.
We add the tags [arch=i386] or [arch=armhf] or if any repo provide more  [arch=armel,armhf]
<span style="line-height: 1.1em;" />You should add your whised repositories there ...
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