مشکل با نصب

وقتی میخوام یه چیزی نصب کنم این ارور میاد :


Error Downloading Packages:
libxml2-devel-2.6.26-2.1.21.el5_9.3.i386: failure: CentOS/libxml2-devel-2.6.26-2.1.21.el5_9.3.i386.rpm from base: [Errno 256] No more mirrors to try.
libgcrypt-devel-1.4.4-7.el5_10.i386: failure: RPMS/libgcrypt-devel-1.4.4-7.el5_10.i386.rpm from updates: [Errno 256] No more mirrors to try.
libtidy-0.99.0-12.20070228.el5.centos.i386: failure: RPMS/libtidy-0.99.0-12.20070228.el5.centos.i386.rpm from extras: [Errno 256] No more mirrors to try.
zlib-devel-1.2.3-7.el5.i386: failure: CentOS/zlib-devel-1.2.3-7.el5.i386.rpm from base: [Errno 256] No more mirrors to try.
libxslt-devel-1.1.17-4.el5_8.3.i386: failure: CentOS/libxslt-devel-1.1.17-4.el5_8.3.i386.rpm from base: [Errno 256] No more mirrors to try.
libtidy-devel-0.99.0-12.20070228.el5.centos.i386: failure: RPMS/libtidy-devel-0.99.0-12.20070228.el5.centos.i386.rpm from extras: [Errno 256] No more mirrors to try.
libgpg-error-devel-1.4-2.i386: failure: CentOS/libgpg-error-devel-1.4-2.i386.rpm from base: [Errno 256] No more mirrors to try.

جریانش چیه ؟ سیستم عامل هم از متن بالا معلومه centos

این هم یه مورد دیگه :

Downloading Packages:
http://mirror.linux.duke.edu/pub/cen...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://ftp.osuosl.org/pub/centos/5.1...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://mirrors.kernel.org/centos/5.1...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosx4.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosn4.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://mirror.nsc.liu.se/CentOS/5.10...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosp3.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centoss5.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosv.centos.org/centos/5.1...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosv4.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://mirror.linux.duke.edu/pub/cen...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://ftp.osuosl.org/pub/centos/5.1...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://mirrors.kernel.org/centos/5.1...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosx4.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosn4.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://mirror.nsc.liu.se/CentOS/5.10...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosp3.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centoss5.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosv.centos.org/centos/5.1...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosv4.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://mirror.linux.duke.edu/pub/cen...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://ftp.osuosl.org/pub/centos/5.1...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://mirrors.kernel.org/centos/5.1...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosx4.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosn4.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://mirror.nsc.liu.se/CentOS/5.10...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosp3.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centoss5.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosv.centos.org/centos/5.1...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosv4.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://mirror.linux.duke.edu/pub/cen...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://ftp.osuosl.org/pub/centos/5.1...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://mirrors.kernel.org/centos/5.1...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosx4.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosn4.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://mirror.nsc.liu.se/CentOS/5.10...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosp3.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centoss5.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosv.centos.org/centos/5.1...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosv4.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://mirror.linux.duke.edu/pub/cen...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://ftp.osuosl.org/pub/centos/5.1...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://mirrors.kernel.org/centos/5.1...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosx4.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosn4.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://mirror.nsc.liu.se/CentOS/5.10...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosp3.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centoss5.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosv.centos.org/centos/5.1...5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.
http://centosv4.centos.org/centos/5....5_10.i386.rpm: [Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Trying other mirror.


Error Downloading Packages:
php-common-5.1.6-44.el5_10.i386: failure: RPMS/php-common-5.1.6-44.el5_10.i386.rpm from updates: [Errno 256] No more mirrors to try.
php-cli-5.1.6-44.el5_10.i386: failure: RPMS/php-cli-5.1.6-44.el5_10.i386.rpm from updates: [Errno 256] No more mirrors to try.
php-pdo-5.1.6-44.el5_10.i386: failure: RPMS/php-pdo-5.1.6-44.el5_10.i386.rpm from updates: [Errno 256] No more mirrors to try.
php-mysql-5.1.6-44.el5_10.i386: failure: RPMS/php-mysql-5.1.6-44.el5_10.i386.rpm from updates: [Errno 256] No more mirrors to try.
php-5.1.6-44.el5_10.i386: failure: RPMS/php-5.1.6-44.el5_10.i386.rpm from updates: [Errno 256] No more mirrors to try.

--2014-04-11 05:50:31-- http://download.lxcenter.org/download/kloxo-install.zip
Resolving download.lxcenter.org... failed: Temporary failure in name resolution.
wget: unable to resolve host address `download.lxcenter.org'
unzip: cannot find or open kloxo-install.zip, kloxo-install.zip.zip or kloxo-install.zip.ZIP.
./kloxo-installer.sh: line 199: cd: kloxo-install: No such file or directory
./kloxo-installer.sh: line 205: php: command not found

echo "nameserver 8.8.8.8" >> /etc/resolv.conf

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