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Thread: Build (backport) an newer Ubuntu package to run on an older Ubuntu version

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  1. #1
    Join Date
    Oct 2004
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    Cupertino, CA
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    5,092
    Distro
    Ubuntu 10.04 Lucid Lynx

    Build (backport) an newer Ubuntu package to run on an older Ubuntu version

    You are running the tried-and-true Dapper stable release. You notice that Edgy has a newer version of a package you want. What do you do? Well, prior to this, your would head over to the Backports folks and ask for the package. Some packages are deemed by Backporters to be too bleeding-edge or incompatible to be considered for backporting to Dapper. Now what? Welcome prevu! prevu is like your personal Backports developer, building backports with just a single command.

    This is a quick guide to using prevu. We will use gdebi as an example package.


    1. Get Prevu! Debs are available at http://sourceforge.net/project/showf...kage_id=206140

    2. Edit your /etc/apt/sources.list. You need a deb-src line for the development distro of Ubuntu, such as:
    Code:
    deb-src http://archive.ubuntu.com/ubuntu feisty main restricted universe multiverse
    Of course, run apt-get update afterwards.

    3. Initialize prevu. You need to run sudo prevu-init when you install prevu for the first time. You don't need to run this again -- only the first time.

    4. Build package. Run prevu gdebi
    5. Wait patiently. Sit and twiddle your thumbs while your machine compiles away.

    6. When completed, look in /var/cache/prevu/edgy-debs. There, you will find freshly generated deb packages! This location is also an APT repository, which can be added to your sources.list like so:
    Code:
    deb file:/var/cache/prevu/edgy-debs ./
    Replace edgy with whatever distro you are running.


    Note that not all packages will build. If you don't know how to fix it to build, you probably shouldn't try to do it, because chances are you'll screw up your computer

    Also, note that building our own backports is an unsupported thing to do. Please do not bug Ubuntu developers about your broken system or packages if prevu could be the cause.


    By default, prevu will build debs for the current distro version you are running. If you would like to build for another distro, just run, for example, DIST=breezy prevu gdebi. Note you need to run DIST=breezy prevu-init first.


    Filing bugs
    Prevu is hosted on Launchpad. Please file bugs to launchpad, product 'prevu'.

    -----

    Uninstallation:

    Prevu does take up some space. Mine takes up around 100MB of space. Depending on how many packages you have, /var/cache/pbuilder/aptcache might be quite full, too. To remove prevu:

    1. Uninstall the prevu package
    2. Run sudo rm -rf /var/cache/prevu
    3. Run sudo rm /var/cache/pbuilder/aptcache/*
    Last edited by jdong; November 8th, 2006 at 06:07 AM.
    Quote Originally Posted by tuxradar
    Linux's audio architecture is more like the layers of the Earth's crust than the network model, with lower levels occasionally erupting on to the surface, causing confusion and distress, and upper layers moving to displace the underlying technology that was originally hidden

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