[CentOS-announce] Release for CentOS-5.1 i386 and x86_64

Karanbir Singh kbsingh at centos.org
Sun Dec 2 22:05:38 UTC 2007

We are pleased to announce the immediate availability of CentOS-5.1 for 
the i386 and x86_64 Architectures.

CentOS-5.1 is based on the upstream release 5.1, 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. And the option to further enable external repositories at install 
time is now available in the installer.

Further Arch support for PowerPC, IA64 and Sparc are planned and will be 
released soon. These arch's will follow the existing pattern of release 
to Beta first, and then to Final.

This is the first release where we are also publishing a special 
netinstall iso that can be used to start a remote install. Its included 
in the isos/ directory. This iso is in addition to the boot.iso 
published in the images/ directory of the distribution - there are no 
changes to that file.

Verification of downloads and media

We highly recommend that all forms of downloads be verified before use. 
Both md5sum and sha1sum for all isos and torrents released by the CentOS 
project are published at the same location as the isos and torrents 
themselves. md5sum and sha1sum verification tools are available for all 
major platforms. As an added option, but not a replacement to the 
md5sum/sha1sum process, its possible to check media during install time.

All rpms published by the CentOS project are signed with a gpg key, and 
by default we configure yum to verify this signature on package 
download. In order to check that this is operating as normal ensure that 
each repository section includes two lines that look exactly like this :


Note: 1) url to the gpg key will never point at an external non 
.centos.org machine.
       2) a copy of the gpg key is also provided on the install media, 
and installed as /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5, however do the 
possibility of compromised media we recommend you still verify that key 
with the one hosted on http://mirror.centos.org/

Download Instructions:

First a request from us : When possible, consider using torrents to run 
the downloads. Not only does it help the community and keeps mirrors 
from running up high bandiwdth bills, in most cases you will find its 
also the fastest means to download the distro.

Via BitTorrent :
Torrents are available for i386 at 
and for x86_64 at http://isoredirect.centos.org/centos/5/isos/x86_64/

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, and 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 dont need to go looking for a mirror with all 
the isos you want ! )

    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 DVD's 
are clearly marked on the page.

i386 ISOS and their sha1sum's are :

18dbc08071f381b327e7d591d6921f125ff43359  CentOS-5.1-i386-bin-1of6.iso
87f1fa3cd42fbfb6d9d12d7d4440101aba2e4647  CentOS-5.1-i386-bin-2of6.iso
ec4b1875de5bf9da3fcedad66a0ed61f59d07dd3  CentOS-5.1-i386-bin-3of6.iso
077179429ef46e8aee6726a64aaf461a4f44a668  CentOS-5.1-i386-bin-4of6.iso
bcc3b5d839b56638419eee09fa933c90005f291d  CentOS-5.1-i386-bin-5of6.iso
c6b62bbf82cc850d2855705934a0e4b04f0abfe3  CentOS-5.1-i386-bin-6of6.iso
0a07e11a43515e772eb392e5b9261ecc52980b7c  CentOS-5.1-i386-bin-DVD.iso
e010156ae3bb7499c057f25cc3b42bd66bb686b7  CentOS-5.1-i386-netinstall.iso

x86_64 ISOS and their sha1sum's are :

7e70ca98f6042342159a6705cc10eae9b937a12f  CentOS-5.1-x86_64-bin-1of7.iso
eaec3219d9ee29ead7d79e87674ea1b289cddb2f  CentOS-5.1-x86_64-bin-2of7.iso
89d922359fab8668bf5aee594de3e3bdad8b27f0  CentOS-5.1-x86_64-bin-3of7.iso
6a7d55cbcaf4412001ed276c20d299e1c48aa2cd  CentOS-5.1-x86_64-bin-4of7.iso
018c877063e1893785ba28859552f0ec73b101f6  CentOS-5.1-x86_64-bin-5of7.iso
d5daca1b6341b290d090162441078b6c6a054827  CentOS-5.1-x86_64-bin-6of7.iso
1ab34cf0977aa966436dd0d3b54a7f56e99f3344  CentOS-5.1-x86_64-bin-7of7.iso
22403c5d46fd620e3d7156a8df0f73889680a20d  CentOS-5.1-x86_64-bin-DVD.iso
da61e6c3d0b119da59804144cf7d42478cf812c8  CentOS-5.1-x86_64-netinstall.iso

Release Notes:

The distro release notes are only available online at 
http://wiki.centos.org/Manuals/ReleaseNotes/CentOS5.1/  The release 
notes include important changelog info as well as notes about the 
installer and outcomes from test situations which the centos-qa team 
worked through. Its considered essential reading.

Upstream release notes are available in the NOTES/ directory of the 
install media, as well as online at http://www.centos.org/docs/5/ . 
These include release specific technologies, new features in the distro 
and other misc infomation that can help you better utilise the distro. 
Always something worth reading.

How to get help with CentOS

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.

Friendly URL's :

And a big thanks to everyone who contributed to the distro, including 
the translation teams, the qa team, the CentOS Developers and all the 
users out there.


Karanbir Singh
CentOS Project { http://www.centos.org/ }
irc: z00dax, #centos at irc.freenode.net

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