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| '''zsync''' is a usefull progam for download the parts of a file that are changed on the server, so you haven't to download everytime a full copy of Ubuntu but simply update it. | '''zsync''' is a usefull progam to download the parts of a file that are changed on the server, so you haven't to download everytime a full copy of Ubuntu but simply update it. '''zsync''' will also provvide to make the checksum comparison and made possible the change of flavor (e.g. you have an ISO of Ubuntu and want to change it on kubuntu, simply copy/paste the right line for Kubuntu and it will download only the files that differs from the two versions). |
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| = Obtain Ubuntu = | = Acquiring the ISO = |
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| The first time download fastest way is by [http://en.wikipedia.org/wiki/BitTorrent_(software): Torrent]. | The fastest way to download is by [http://en.wikipedia.org/wiki/BitTorrent_(software): Torrent]. |
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| = Update ISO = | = Updating the ISO = |
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| To update your ISO image, open a Terminal, go to the directory whee you have saved the image and copy/paste the appropriate from the following commands. | To update your ISO image, open a Terminal, go to the directory where you have saved the image and copy/paste the appropriate from the following commands. |
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| '''Computer with 32 bit (i386) architecture'''. | === ** Computer with 32 bit (i386) architecture === |
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| '''Computer with 64 bit (amd64 or multicore) architecture'''. | === ** Computer with 64 bit (amd64 or multicore) architecture === |
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== Updating with rsync instead == Another way to update your ISO is by rsync. It use the same algorithm of zsync but as it require special software on the server end it is a little bit less efficient than zsync. A number of the Ubuntu servers also work as rsync servers with quite similar URIs to the websites. For example: {{{ rsync -zhhP rsync://cdimage.ubuntu.com/cdimage/daily-live/current/lucid-desktop-i386.iso . }}} will sync the server's daily Lucid desktop image (for i386) to your local system with an older desktop image already stored on your hard drive. -z is compression, -hh is human readable file size (in KB or MB), and -P is a progress indicator. Note: If you are using other flavors of Ubuntu don't forget to add the flavor's name in the rsync path after cdimage/, e.g. {{{ rsync -zhhP rsync://cdimage.ubuntu.com/cdimage/kubuntu/daily-live/current/lucid-desktop-i386.iso . }}} ---- CategoryHomepage |
Intro
zsync is a usefull progam to download the parts of a file that are changed on the server, so you haven't to download everytime a full copy of Ubuntu but simply update it.
zsync will also provvide to make the checksum comparison and made possible the change of flavor (e.g. you have an ISO of Ubuntu and want to change it on kubuntu, simply copy/paste the right line for Kubuntu and it will download only the files that differs from the two versions).
Installing zsync
Install [apt://zsync zsync] package.
Acquiring the ISO
All Ubuntu's CD images are stored on the http://cdimage.ubuntu.com site. The fastest way to download is by [http://en.wikipedia.org/wiki/BitTorrent_(software): Torrent].
Updating the ISO
To update your ISO image, open a Terminal, go to the directory where you have saved the image and copy/paste the appropriate from the following commands.
** Computer with 32 bit (i386) architecture
UBUNTU
zsync http://cdimage.ubuntu.com/daily-live/current/lucid-desktop-i386.iso.zsync
KUBUNTU
zsync http://cdimage.ubuntu.com/kubuntu/daily-live/current/lucid-desktop-i386.iso.zsync
XUBUNTU
zsync http://cdimage.ubuntu.com/xubuntu/daily-live/current/lucid-desktop-i386.iso.zsync
** Computer with 64 bit (amd64 or multicore) architecture
UBUNTU
zsync http://cdimage.ubuntu.com/daily-live/current/lucid-desktop-amd64.iso.zsync
KUBUNTU
zsync http://cdimage.ubuntu.com/kubuntu/daily-live/current/lucid-desktop-amd64.iso.zsync
XUBUNTU
zsync http://cdimage.ubuntu.com/xubuntu/daily-live/current/lucid-desktop-amd64.iso.zsync
Updating with rsync instead
Another way to update your ISO is by rsync. It use the same algorithm of zsync but as it require special software on the server end it is a little bit less efficient than zsync. A number of the Ubuntu servers also work as rsync servers with quite similar URIs to the websites. For example:
rsync -zhhP rsync://cdimage.ubuntu.com/cdimage/daily-live/current/lucid-desktop-i386.iso .
will sync the server's daily Lucid desktop image (for i386) to your local system with an older desktop image already stored on your hard drive. -z is compression, -hh is human readable file size (in KB or MB), and -P is a progress indicator.
Note: If you are using other flavors of Ubuntu don't forget to add the flavor's name in the rsync path after cdimage/, e.g.
rsync -zhhP rsync://cdimage.ubuntu.com/cdimage/kubuntu/daily-live/current/lucid-desktop-i386.iso .
