can't update yum

X

xuancong6000

Verified User
Joined
Oct 12, 2012
Messages
79
I do this command but it can't run: yum update
Code: 
[root@server ~]# yum update
Loaded plugins: fastestmirror, refresh-packagekit
Loading mirror speeds from cached hostfile
 * base: centos.digitalcompass.net
 * extras: centos.mbni.med.umich.edu
 * updates: centos.digitalcompass.net
http://centos.digitalcompass.net/centos/6.3/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'centos.digitalcompass.net'"
Trying other mirror.
http://centos.eecs.wsu.edu/6.3/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'centos.eecs.wsu.edu'"
Trying other mirror.
http://centos.mbni.med.umich.edu/mirror/6.3/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'centos.mbni.med.umich.edu'"
Trying other mirror.
http://centos.mirror.constant.com/6.3/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'centos.mirror.constant.com'"
Trying other mirror.
http://centos.mirror.nac.net/6.3/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'centos.mirror.nac.net'"
Trying other mirror.
http://centos.mirrorcatalogs.com/6.3/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'centos.mirrorcatalogs.com'"
Trying other mirror.
http://centos.netnitco.net/6.3/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'centos.netnitco.net'"
Trying other mirror.
http://dallas.tx.mirror.xygenhosting.com/CentOS/6.3/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'dallas.tx.mirror.xygenhosting.com'"
Trying other mirror.
http://dist1.800hosting.com/centos/6.3/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'dist1.800hosting.com'"
Trying other mirror.
http://lug.mtu.edu/centos/6.3/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'lug.mtu.edu'"
Trying other mirror.
http://mirror.fdcservers.net/centos/6.3/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.fdcservers.net'"
Trying other mirror.
http://mirror.net.cen.ct.gov/centos/6.3/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.net.cen.ct.gov'"
Trying other mirror.
http://mirror.nwresd.org/pub/centos/6.3/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.nwresd.org'"
Trying other mirror.
http://mirror.pac-12.org/6.3/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.pac-12.org'"
Trying other mirror.
http://mirror.steadfast.net/centos/6.3/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.steadfast.net'"
Trying other mirror.
http://mirrors.adams.net/centos/6.3/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirrors.adams.net'"
Trying other mirror.
http://mirrors.arsc.edu/centos/6.3/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirrors.arsc.edu'"
Trying other mirror.
http://mirrors.kernel.org/centos/6.3/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirrors.kernel.org'"
Trying other mirror.
http://mirrors.serveraxis.net/centos/6.3/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirrors.serveraxis.net'"
Trying other mirror.
ftp://mirror.nandomedia.com/pub/CentOS/6.3/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.nandomedia.com'"
Trying other mirror.
http://centos.mbni.med.umich.edu/mirror/6.3/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'centos.mbni.med.umich.edu'"
Trying other mirror.
http://centos.mirror.facebook.net/6.3/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'centos.mirror.facebook.net'"
Trying other mirror.
http://centos.mirror.nac.net/6.3/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'centos.mirror.nac.net'"
Trying other mirror.
http://centos.mirror.netriplex.com/6.3/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'centos.mirror.netriplex.com'"
Trying other mirror.
http://centos.mirror.sea.rackd.net/6.3/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'centos.mirror.sea.rackd.net'"
Trying other mirror.
http://centos.mirrors.hoobly.com/6.3/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'centos.mirrors.hoobly.com'"
Trying other mirror.
http://centos.vipernetworksystems.com/6.3/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'centos.vipernetworksystems.com'"
Trying other mirror.
http://mirror.fdcservers.net/centos/6.3/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.fdcservers.net'"
Trying other mirror.
http://mirror.flhsi.com/centos/6.3/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.flhsi.com'"
Trying other mirror.
http://mirror.linux.duke.edu/pub/centos/6.3/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.linux.duke.edu'"
Trying other mirror.
http://mirror.net.cen.ct.gov/centos/6.3/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.net.cen.ct.gov'"
Trying other mirror.
http://mirror.sanctuaryhost.com/centos/6.3/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.sanctuaryhost.com'"
Trying other mirror.
http://mirror.symnds.com/CentOS/6.3/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.symnds.com'"
Trying other mirror.
http://mirror.team-cymru.org/CentOS/6.3/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.team-cymru.org'"
Trying other mirror.
http://mirror.thelinuxfix.com/CentOS/6.3/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.thelinuxfix.com'"
Trying other mirror.
http://mirror.trouble-free.net/centos/6.3/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.trouble-free.net'"
Trying other mirror.
http://mirror.ubiquityservers.com/centos/6.3/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.ubiquityservers.com'"
Trying other mirror.
http://mirrors.einstein.yu.edu/centos/6.3/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirrors.einstein.yu.edu'"
Trying other mirror.
http://yum.singlehop.com/CentOS/6.3/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'yum.singlehop.com'"
Trying other mirror.
ftp://mirror.nandomedia.com/pub/CentOS/6.3/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.nandomedia.com'"
Trying other mirror.
http://centos.digitalcompass.net/centos/6.3/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'centos.digitalcompass.net'"
Trying other mirror.
http://centos.mirror.balt.rackd.net/6.3/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'centos.mirror.balt.rackd.net'"
Trying other mirror.
http://centos.mirror.freedomvoice.com/6.3/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'centos.mirror.freedomvoice.com'"
Trying other mirror.
http://centos.mirror.netriplex.com/6.3/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'centos.mirror.netriplex.com'"
Trying other mirror.
http://dallas.tx.mirror.xygenhosting.com/CentOS/6.3/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'dallas.tx.mirror.xygenhosting.com'"
Trying other mirror.
http://ftp.linux.ncsu.edu/pub/CentOS/6.3/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'ftp.linux.ncsu.edu'"
Trying other mirror.
http://ftp.osuosl.org/pub/centos/6.3/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'ftp.osuosl.org'"
Trying other mirror.
http://mirror.5ninesolutions.com/centos/6.3/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.5ninesolutions.com'"
Trying other mirror.
http://mirror.anl.gov/pub/centos/6.3/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.anl.gov'"
Trying other mirror.
http://mirror.dattobackup.com/CentOS/6.3/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.dattobackup.com'"
Trying other mirror.
http://mirror.flhsi.com/centos/6.3/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.flhsi.com'"
Trying other mirror.
http://mirror.hmc.edu/centos/6.3/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.hmc.edu'"
Trying other mirror.
http://mirror.liberty.edu/pub/CentOS/6.3/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.liberty.edu'"
Trying other mirror.
http://mirror.sanctuaryhost.com/centos/6.3/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.sanctuaryhost.com'"
Trying other mirror.
http://mirror.spro.net/centos/6.3/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.spro.net'"
Trying other mirror.
http://mirror.unl.edu/centos/6.3/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.unl.edu'"
Trying other mirror.
http://mirror.us.leaseweb.net/centos/6.3/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.us.leaseweb.net'"
Trying other mirror.
http://mirror.wiredtree.com/centos/6.3/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirror.wiredtree.com'"
Trying other mirror.
http://mirrors.adams.net/centos/6.3/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirrors.adams.net'"
Trying other mirror.
http://mirrors.rit.edu/centos/6.3/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirrors.rit.edu'"
Trying other mirror.
http://vzdownload.swsoft.com/ez/packages/centos/6/x86_64/os/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'vzdownload.swsoft.com'"
Trying other mirror.
http://vzdownload.swsoft.com/ez/packages/centos/6/x86_64/updates/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'vzdownload.swsoft.com'"
Trying other mirror.
Setting up Update Process
No Packages marked for Update
Please help me fix it thanks
 
Try resolving those URLs which don't resolve from your command line. Perhaps you don't have a working caching nameserver assigned.

Jeff
 
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