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Adapted for hardy release. Removed the obsolete powerpc data for hardy. I'm currently evaluation if and how I shouldinclude information about ports.ubuntu.com packages here. Since archive.ubuntu.com is currently unusableI use nl.archive.ubuntu.com as source for the data until the situation normalizes again.
The downtime today was caused by some yet undiagnosed kernel troubles aftera faulty hard disk was exchanged. Sorry for any inconvenience.2008-02-19Switched packages.ubuntu.com to the newer codebase that also runson packages.debian.org. The two most important changes for usersare that most pages are now generated dynamically (which makesfor faster updates and more flexibility) and that the searchfunctions should be much faster now.Still waiting for a volunteer that optimizes the used stylesheets,I myself have not much talent in this area...2007-10-21Add hardy.2007-10-18Change default release to gutsy.2007-07-28Drop old releases since they also got dropped from archive.ubuntu.com.2007-04-29Feisty is released. Pages updated accordingly.2006-11-20
This seems pretty tedious, and I am wondering how realistic it is that there is a problem with ISO downloaded from the official website. I note that the process of verification itself requires me to download software that is new to me, thus introducing another attack vector on me even as I am closing another one.
When you're downloading over TCP which checksums all transmitted data, there's very little chance of having a corrupt download with exactly the same size. If you're confident you're downloading from the official site (you normally are if you're using HTTPS and the certificate check passes), verifying that your download is complete is normally enough. Decent web browsers usually do the check for you anyway, saying something along the lines of "download failed" if they don't get the amount of data they expect, though I have seen browsers which just decide to keep the incomplete file without saying anything to the user, in which case you could check the file size manually.
There are generally at least one bug report filed per day (on launchpad; I monitor via #ubuntu-bugs-announce), reported by users who've been having problems with they consider a bug that would have been prevented by these checks. The bug reports are just marked INVALID and given a quick paste with a couple of lines from their dmesg output). So I see on a very regular basis users wasting hours trying to repeat processes that will never work (often over days), because they skipped these checks and thus are starting with corrupted media where problems should be expected.
Ubuntu is named after the Nguni philosophy of ubuntu, "humanity to others" with a connotation of "I am what I am because of who we all are".[8] Since the release of the first version in 2004, Ubuntu has become one of the most popular Linux distributions for general purposes[27][28] and is backed by large online communities like Ask Ubuntu. Numerous community-editions of Ubuntu also exist.[29] It is also popular for cloud computing, with support for OpenStack.[30]
The system requirements vary among Ubuntu products. For the Ubuntu desktop release 22.04 LTS, a PC with at least 2 GHz dual-core processor, 4 GB of RAM and 25 GB of free disk space is recommended.[64] For less powerful computers, there are other Ubuntu distributions such as Lubuntu and Xubuntu. Ubuntu also supports the ARM architecture.[5][65][66][67][68] It is also available on Power ISA,[5][69][70][71] while older PowerPC architecture was at one point unofficially supported,[72] and now newer Power ISA CPUs (POWER8) are supported. The x86-64 ("AMD64") architecture is also officially supported.[5]
Additionally, USB flash drive installations can be used to boot Ubuntu and Kubuntu in a way that allows permanent saving of user settings and portability of the USB-installed system between physical machines (however, the computers' BIOS must support booting from USB).[76] In newer versions of Ubuntu, the Ubuntu Live USB creator can be used to install Ubuntu on a USB drive (with or without a live CD or DVD). Creating a bootable USB drive with persistence is as simple as dragging a slider to determine how much space to reserve for persistence; for this, Ubuntu employs casper.[77][78]
In addition to the above, in which the software does not receive new features after an initial release, Ubuntu Backports is an officially recognized repository for backporting newer software from later versions of Ubuntu.[82]
Canonical previously hosted a partner repository that let vendors of proprietary software deliver their products to Ubuntu users at no cost through the same familiar tools for installing and upgrading software.[85] The software in the partner repository was officially supported with security and other important updates by its respective vendors. Canonical supported the packaging of the software for Ubuntu[86][87][88] and provided guidance to vendors.[85] However, in anticipation for the release of Ubuntu 22.04 LTS Canonical closed the partner repository, as the only package still hosted in it was Adobe Flash, which would not be released with 22.04.[89] Ubuntu developer Steve Langasek said in a development mailing list that he felt the "Snap Store has matured to the point that I believe it supersedes the partner archive".[90]
Some third-party software that does not limit distribution is included in Ubuntu's multiverse component. The package ubuntu-restricted-extras additionally contains software that may be legally restricted, including support for DVD playback, Microsoft TrueType core fonts, many common audio/video codecs, and unrar, an unarchiver for files compressed in the RAR file format.[citation needed]
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