JigdoDownloadHowto

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Jigdo can be used to speed up the repeated downloading of daily CD images of Hoary, the development branch of Ubuntu. To do this, first insert a previously downloaded CD (if you haven't already downloaded a Hoary image, then either use Warty or just leave this step out). Type the following: == definition ==
Jigdo (JIGsaw-DOwnload) can be used to efficiently download daily CD builds or update existing .iso images without the need to re-download the CD image.

== installation ==
The command below will install Jigdo and related files.
{{{
sudo apt-get install jigit jigdo jigdo-file
}}}

== use & example (using Dapper) ==
The first step in using Jigdo is starting the program using:
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jigdo-lite
}}}
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  apt-get install jigit
  echo 'HOST=http://cdimage.ubuntu.com/daily/' > ~/.jigit.conf
  jigit hoary-install-i386
}}}
(Substitute whichever architecture you want for i386.)

jigit will ask you if you have any previous CD images available. If you do, type the location where you've mounted it (inserted CDs will be /cdrom by default). If not, leave this blank.

jigit will now go off and download any new files it needs that weren't in the previous CD image, and construct a new CD image for you to burn.
The program then asks you for the URL to the .jigdo template you want to download.
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  At this moment the files are broken and jigit could not work. Try with jigdo-lite.
  Run synaptic, search jigdo, install jigdo-file. It can be found at the universe repository.
  Then run jigdo-lite and put the following URL as answer of the of first question:
  http://archive.ubuntu.com/ubuntu/
Jigsaw Download "lite"
Copyright (C) 2001-2004 | jigdo@
Richard Atterer | atterer.net
Getting mirror information from /etc/apt/sources.list

-----------------------------------------------------------------
To resume a half-finished download, enter name of .jigdo file.
To start a new download, enter URL of .jigdo file.
You can also enter several URLs/filenames, separated with spaces,
or enumerate in {}, e.g. `http://server/cd-{1_NONUS,2,3}.jigdo'
jigdo:
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In this situation we'll use [http://cdimage.ubuntulinux.org/daily/current/dapper-install-i386.jigdo Current Daily Build] (copy link-location & paste into prompt above)

Jigdo will then download a copy of the .jigdo file using wget and then prompt you for any previous images you have to base the download from.

{{{
If you already have a previous version of the CD you are
downloading, jigdo can re-use files on the old CD that are also
present in the new image, and you do not need to download them
again. Mount the old CD ROM and enter the path it is mounted under
(e.g. `/mnt/cdrom').
Alternatively, just press enter if you want to start downloading
the remaining files.
}}}

Here you can point Jigdo to an existing .iso file (ie; ~/dapper-install-i386.iso) or a previously burned copy of such (ie; /media/cdrom)

Jigdo then scans the existing files & compares them with the latest copies from the .jigdo template. Result: You only download the differences in the files and not the entire .iso for the latest daily build.


definition

Jigdo (JIGsaw-DOwnload) can be used to efficiently download daily CD builds or update existing .iso images without the need to re-download the CD image.

installation

The command below will install Jigdo and related files.

sudo apt-get install jigit jigdo jigdo-file

use & example (using Dapper)

The first step in using Jigdo is starting the program using:

jigdo-lite

The program then asks you for the URL to the .jigdo template you want to download.

Jigsaw Download "lite"
Copyright (C) 2001-2004  |  jigdo@
Richard Atterer          |  atterer.net
Getting mirror information from /etc/apt/sources.list

-----------------------------------------------------------------
To resume a half-finished download, enter name of .jigdo file.
To start a new download, enter URL of .jigdo file.
You can also enter several URLs/filenames, separated with spaces,
or enumerate in {}, e.g. `http://server/cd-{1_NONUS,2,3}.jigdo'
jigdo: 

In this situation we'll use [http://cdimage.ubuntulinux.org/daily/current/dapper-install-i386.jigdo Current Daily Build] (copy link-location & paste into prompt above)

Jigdo will then download a copy of the .jigdo file using wget and then prompt you for any previous images you have to base the download from.

If you already have a previous version of the CD you are
downloading, jigdo can re-use files on the old CD that are also
present in the new image, and you do not need to download them
again. Mount the old CD ROM and enter the path it is mounted under
(e.g. `/mnt/cdrom').
Alternatively, just press enter if you want to start downloading
the remaining files.

Here you can point Jigdo to an existing .iso file (ie; ~/dapper-install-i386.iso) or a previously burned copy of such (ie; /media/cdrom)

Jigdo then scans the existing files & compares them with the latest copies from the .jigdo template. Result: You only download the differences in the files and not the entire .iso for the latest daily build.

CategoryDocumentation CategoryCleanup

JigdoDownloadHowto (last edited 2008-08-06 16:31:29 by localhost)