UbuntuHelp:Debmirror

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https://help.ubuntu.com/community/Debmirror

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To build a mirror with debmirror follow these steps

This is not covering all use cases but it will allow you experiment. To do this safely 8.2 gigs of space are need main source and binaries. This number grows a lot as time progresses.

Alternative Consideration

If you want to download all the apt binaries for all boxes onto one box on a network then maybe apt-cache or a transparent proxy is all you need.

Another method is to use rsync. The Rsyncmirror page goes into greater detail on this method. Rsync can create a full mirror of a site and selects files indiscriminately. Debmirror, however, does allow for better control over which packages are mirrored and can be easier on the amount of hard drive space required.

Start The Mirror Build Process

Open gnome-terminal by clicking Applications -> Accessories -> Terminal.
If your sources list has universe enabled, skip the next step.
Open your sources list (sudo editor /etc/apt/sources.list), and add the following line
deb http://*.archive.ubuntu.com/ubuntu/ dapper universe
Then save and return to a prompt.

Update the package lists (sudo apt-get update) and then install debmirror (sudo apt-get install debmirror).
Now we have to create a directory to save the files too. The approximate size of the components of the mirror (i386 only) are:

1. Changes over time.

feisty	~27G	main, restricted, universe, multiverse
dapper	8.2G	main
dapper-security	?G	main, restricted, universe, multiverse
dapper-updates	?G	main, restricted, universe, multiverse
breezy	11G	main
breezy-security	493M	main, restricted, universe, multiverse
breezy-updates	182M	main, restricted, universe, multiverse
hoary	~9G	main
hoary-security	1.2G	main, restricted, universe, multiverse
hoary-updates	144M	main, restricted, universe, multiverse

Please ensure where ever you make the mirror has room for the packages you want to download!
(If you are more advanced you can make different parts of the mirror on different volumes, but thats not something for this howto).
We will make our mirror on /home/ with

sudo mkdir /home/UbuntuMirror

Create the file `mirrorBuild.sh`

Now to create `mirrorBuild.sh`
Open your prefered editor thus

sudo editor /home/UbuntuMirror/mirrorBuild.sh

Copy the text from the box below into the editor.
You may omit the lines starting with # (NB EXCEPTION the line that starts #!/bin/bash must be left in.)

Contents of the mirror script, please adapt it to your needs

#!/bin/bash


# Arch=		-a	# Architecture. For Ubuntu can be i386, powerpc or amd64.
# sparc, only starts in dapper, it is only the later models of sparc
#
arch=i386

# Minimum Ubuntu system requires main, restricted
# Section=	-s	# Section (One of the following - main/restricted/universe/multiverse).
#
section=main,restricted,universe,multiverse

# Release=	-d	# Release of the system (Hoary, Breezy, Dapper, Edgy), and the -updates and -security ( -backports can be added if desired)
#
release=dapper,dapper-security,dapper-updates

# Server=	-h	# Server name, minus the protocol and the path at the end
# CHANGE "*" to equal the mirror you want to create your mirror from. au. in Australia  ca. in Canada.
# This can be found in your own /etc/apt/sources.list file, assuming you have Ubuntu installed.
#
server=*.archive.ubuntu.com

# Dir=		-r	# Path from the main server, so http://my.web.server/$dir, Server dependant
#
inPath=/ubuntu

# Proto=	-e	# Protocol to use for transfer (http, ftp, hftp, rsync)
# Choose one - http is most usual the service, and the service must be avaialbe on the server you point at.
#
proto=http

# Outpath=		# Directory to store the mirror in
# Make this a full path to where you want to mirror the material.
#
outPath=/home/UbuntuMirror

# The --nosource option only downloads debs and not deb-src's
# The --progress option shows files as they are downloaded
# --source \ in the place of --nosource \ if you want sources also.
# Start script
#
debmirror	-a $arch \
		--nosource \
		-s $section \
		-h $server \
		-d $release \
		-r $inPath \
		--progress \
		-e $proto \
		--ignore-release-gpg \
		$outPath

How to use the file

Save the file and exit.

* Now change the permissions and ownership on the mirror and the script. The group name is your username:

sudo chown -R root.username /home/UbuntuMirror
sudo chmod -R 571 /home/UbuntuMirror

* And the final part of setting up the mirror is to download the files

cd /home/UbuntuMirror
./mirrorBuild.sh

Now walk away. Your machine has a lot of downloading to do!

Set up the mirror

We need to install Apache2, you could choose apache version 1.3 but that is beyond the scope of this document.
We can do this with `sudo apt-get install apache2`

Then (for simplicity sake) lets make a link from /home/UbuntuMirror to /var/www/ubuntu.

ln -s /home/UbuntuMirror /var/www/ubuntu

This means when you go to download from your mirror, you will visit `http://mirrorbox/ubuntu/`.

Right! So we have all the packages, and a working server. Now we need to set up the clients.

Set up a client system

Open a terminal and enter

cd /etc/apt
sudo mv sources.list sources.list.orig
sudo editor sources.list

Now in your editor, put the following lines:

# Local network mirror sources.
deb http://mirrorbox/ubuntu dapper main restricted universe multiverse
deb http://mirrorbox/ubuntu dapper-updates main restricted universe multiverse
deb http://mirrorbox/ubuntu dapper-security main restricted universe multiverse

Then save and exit
If you then run

sudo apt-get update
sudo apt-get dist-upgrade

you should be updating from your new server!

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