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PackageKit
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<h2 id="software-architecture">Software architecture</h2> <p>PackageKit runs as a system-activated <a href="/facts/Daemon_(computer_software)/bzuEVGGX">daemon</a>, named packagekitd, which abstracts out differences between the different systems. A library called libpackagekit allows other programs to interact with PackageKit.<a class="footnote-ref" id="fnref:6" href="#fn:6"><sup>6</sup></a> </p><p>Features include: </p> <ul><li>installing local files, ServicePack media and packages from remote sources</li> <li>authorization using <a href="/facts/Polkit/laNkknYf">Polkit</a></li> <li>the use of existing packaging tools</li> <li>multi-user system awareness – it will not allow shutdown in critical parts of the transaction</li> <li>a system-activated daemon which exits when not in use</li></ul> <h3>Front-ends</h3> <ul><li>pkcon is the official <a href="/facts/Front_end_and_back_end/QVUfH8gu">front-end</a> of PackageKit, it operates from the <a href="/facts/Command_line/R9JpGmXQ">command line</a>.<a class="footnote-ref" id="fnref:7" href="#fn:7"><sup>7</sup></a></li></ul> <p><a href="/facts/GTK/oLpVm9pp">GTK</a>-based: </p> <ul><li>gnome-packagekit is an official GNOME front-end for PackageKit. Unlike <a href="/facts/GNOME_Software/M3hmSqoX">GNOME Software</a>, gnome-packagekit can handle all packages, not just applications, and has advanced features that are missing in GNOME Software as of June 2020.</li> <li><a href="/facts/GNOME_Software/M3hmSqoX">GNOME Software</a> is a utility for installing the applications and updates on Linux. It is part of the <a href="/facts/GNOME_Core_Applications/bC6GBU4G">GNOME Core Applications</a> and was introduced in GNOME 3.10.</li></ul> <p><a href="/facts/Qt_(software)/gVhwlQnJ">Qt</a>-based: </p> <h3>Back-ends</h3> <p>A number of different <a href="/facts/Package_management_system/kEX4kx7g">package management systems</a> (known as back-ends) support different abstract methods and signals used by the front-end tools.<a class="footnote-ref" id="fnref:8" href="#fn:8"><sup>8</sup></a> Supported back-ends include: </p> <ul><li><a href="/facts/Advanced_Packaging_Tool/JQ3yu5G7">Advanced Packaging Tool</a> (APT)</li> <li>Conary</li> <li>libdnf<a class="footnote-ref" id="fnref:9" href="#fn:9"><sup>9</sup></a> & librepo,<a class="footnote-ref" id="fnref:10" href="#fn:10"><sup>10</sup></a> the libraries upon which <a href="/facts/DNF_(software)/aPyWIMFx">DNF</a>, (the successor to <a href="/facts/Yellowdog_Updater,_Modified/ynfeLWB8">yum</a>) builds</li> <li><a href="/facts/Entropy_(package_manager)/q2adyUIU">Entropy</a></li> <li>Opkg</li> <li><a href="/facts/Pacman_(package_manager)/MTFCkLqH">pacman</a></li> <li><a href="/facts/PiSi/pUy5dYy9">PiSi</a></li> <li><a href="/facts/Portage_(software)/tLWJ81xb">Portage</a></li> <li><a href="/facts/Smart_Package_Manager/EhPFote0">Smart Package Manager</a></li> <li><a href="/facts/Urpmi/TvbhUeHA">urpmi</a></li> <li><a href="/facts/Yellowdog_Updater,_Modified/ynfeLWB8">YUM</a></li> <li><a href="/facts/ZYpp/f7CEKYXh">ZYpp</a></li></ul> <h2 id="see-also">See also</h2> <ul> <li>Linux portal</li><li>Free and open-source software portal</li></ul> <ul><li><a href="/facts/AppStream/FYayxKhw">AppStream</a></li> <li><a href="/facts/Listaller/joczAPjH">Listaller</a></li> <li><a href="/facts/Polkit/laNkknYf">Polkit</a></li> <li><a href="/facts/Red_Carpet_(software)/mLHhcH8z">Red Carpet</a></li> <li><a href="/facts/Software_Updater/tDkbLlFs">Software Updater</a></li> <li><a href="/facts/List_of_Linux_package_management_systems/JPHvFEXx">List of Linux package management systems</a></li></ul> <h2 id="external-links">External links</h2> Wikimedia Commons has media related to PackageKit. <ul><li><a href="https://www.freedesktop.org/software/PackageKit/">Official website</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>"Installing and Updating Software Blows Goats". Richard Hughes. 27 July 2007. Retrieved 18 January 2011. <a href="https://blogs.gnome.org/hughsie/2007/07/27/installing-and-updating-software-blows-goats/" target="_blank">https://blogs.gnome.org/hughsie/2007/07/27/installing-and-updating-software-blows-goats/</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>"Richard Hughes' blog posts about PackageKit". Richard Hughes. Retrieved 18 January 2011. <a href="https://blogs.gnome.org/hughsie/?s=PackageKit" target="_blank">https://blogs.gnome.org/hughsie/?s=PackageKit</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>"Releases/9/FeatureList". Fedora Project Wiki. Fedora Project. 28 May 2008. Retrieved 7 July 2015. <a href="https://fedoraproject.org/wiki/Releases/9/FeatureList" target="_blank">https://fedoraproject.org/wiki/Releases/9/FeatureList</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>"Introduction to PackageKit, a Package Abstraction Framework" (PDF). Richard Hughes. 2008-02-24. Retrieved 2014-04-11. <a href="http://www.hughsie.com/public/introduction-to-packagekit.pdf" target="_blank">http://www.hughsie.com/public/introduction-to-packagekit.pdf</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>"PackageKit is dead, long live, well, something else". Richard Hughes. 2019-02-15. Retrieved 2019-06-18. <a href="https://blogs.gnome.org/hughsie/2019/02/14/packagekit-is-dead-long-live-well-something-else/" target="_blank">https://blogs.gnome.org/hughsie/2019/02/14/packagekit-is-dead-long-live-well-something-else/</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> <li id="fn:6"><p>"PackageKit Reference Manual". packagekit.org. Archived from the original on 16 July 2009. Retrieved 10 July 2009. <a href="https://web.archive.org/web/20090716015116/http://www.packagekit.org/gtk-doc/PkClient.html" target="_blank">https://web.archive.org/web/20090716015116/http://www.packagekit.org/gtk-doc/PkClient.html</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li> <li id="fn:7"><p>"HowTo use pkon". <a href="https://www.freedesktop.org/software/PackageKit/pk-using.html" target="_blank">https://www.freedesktop.org/software/PackageKit/pk-using.html</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li> <li id="fn:8"><p>"Frequently asked questions". packagekit.org. Archived from the original on 19 March 2008. Retrieved 10 July 2009. <a href="https://web.archive.org/web/20080319143605/http://www.packagekit.org/pk-faq.html#how-complete" target="_blank">https://web.archive.org/web/20080319143605/http://www.packagekit.org/pk-faq.html#how-complete</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></p></li> <li id="fn:9"><p>"libdnf on github". GitHub. <a href="https://github.com/rpm-software-management/libdnf" target="_blank">https://github.com/rpm-software-management/libdnf</a> <a href="#fnref:9" class="footnote-back-ref">↩</a></p></li> <li id="fn:10"><p>"librepo on github". GitHub. <a href="https://github.com/rpm-software-management/librepo" target="_blank">https://github.com/rpm-software-management/librepo</a> <a href="#fnref:10" class="footnote-back-ref">↩</a></p></li> </ol>