Release for CentOS-5.5 i386 and x86_64
We are pleased to announce the immediate availability of CentOS-5.5 for
i386 and x86_64 Architectures.
CentOS-5.5 is based on the upstream release EL 5.5 and includes
packages from all variants including Server and Client. All upstream
repositories have been combined into one, to make it easier for end
users to work with.
This is just an announcement email, not the release notes. The Release
Notes for CentOS-5.5 can be found on-line at :
http://wiki.centos.org/Manuals/ReleaseNotes/CentOS5.5 and everyone is
encouraged to look through them once. Also worth browsing through are
the CentOS FAQs at http://wiki.centos.org/FAQ
Upgrading from CentOS-5.4 ( or CentOS-5.0 / 5.1 / 5.2 / 5.3 ):
If you are already running CentOS-5.4 or an older CentOS-5 distro, all
you need to do is update your machine via yum by running :
Running ‘yum list updates’ before doing the update is recommended, so
you can get a list of packages that are going to be updated. To check
you are indeed on CentOS-5.5, run : ‘rpm -q centos-release’ and that
should return: ‘centos-release-5-5.el5.centos’
LiveCDs for CentOS-5.5 on i386 and x86_64 are being released at the same
time as the main distro. The LiveCDs are meant to be used to run a
CentOS 5.5 environment or to start a network based install. The LiveCDs
are setup in a way so as to allow running from either optical media like
cds and dvds or from USB keys and other portable media.
Change in iso counts:
The i386 distro is now spread onto 7 CD iso files, while the x86_64
distro is now 8 CD isos. The x86_64 DVD set is now spread over 2 DVD
isos, while the i386 DVD remains as 1 iso file.
We’ve had to split the x86_64 dvd media over multiple disks due to the
increase in the binary packages size. We have, however, tried to build
them in a way that dvd#1 should be all that is needed by most people.
x86_64 DVD#2 is limited to some OpenOffice.org language packages. x86_64
DVD#1 includes the rest of the distro and also includes the most popular
OpenOffice.org language packs. More details on the exact split are
available in the Release Notes.
Downloading CentOS-5.5 for new installs:
When possible, consider using torrents to run the downloads. Not only
does it help the community and keeps mirrors from running up high
bandwidth bills, in most cases you will find its also the fastest means
to download the distro. There are currently over three hundred people
seeding CentOS-5 and it’s possible to get upto 100mbps downloads via
– Via BitTorrent :
md5sum’s for these torrent files:
– Via direct download:
Due to bandwidth considerations the CentOS Project does not publish ISOS
directly from our network machines. However direct downloads are
available from external mirrors over http, ftp and rsync. A geoip
based list is available at http://isoredirect.centos.org/centos/5/isos/
to give you the best predictable match ( and only lists mirrors that are
updated already, so you don’t need to waste time looking for a sync’d
Some mirrors also publish DVD images that can be downloaded directly.
Refer to the mirrors list page at http://www.centos.org/mirrors for more
details Mirrors that offer DVDs are clearly marked on the page.
sha1sum for these ISOS:
Since upstream released their 5.5 media, a series of updates have been
issued. These updates are currently syncing to the CentOS mirrors.
Sources and Debuginfo packages:
srpms and debuginfo packages are still making their way to the CentOS
mirrors and should be online within the next few days. Most sources are
already in place, while the debuginfos are only stating to get uploaded now.
The best place to start when looking for help with CentOS is at the wiki
( http://wiki.centos.org/GettingHelp ) which lists various options and
communities who might be able to help. If you think there is a bug in
the system, do report it at http://bugs.centos.org/ – but keep in mind
that the bugs system is *not* a support mechanism.
Some Friendly URLs :
A big thanks to everyone who contributed towards this release, including
the translation teams, the qa team, the artwork team, the CentOS
Developers and all the users out there. A special thanks to my fellow
CentOS Infrastructure team members: Ralph Angenendt and Tru Huynh, who
have both put in many extra-long days. And a shout out to all the donors
who have contributed machines, bandwidth and infrastructure towards the
Enjoy this release, tell all your friends about it too!
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