Mdthbs

I'm trying to do yum update. This is the error I'm getting.

sudo yum update

Loaded plugins: fastestmirror

Loading mirror speeds from cached hostfile

Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=6&arch=x86_64&repo=os error was

12: Timeout on http://mirrorlist.centos.org/?release=6&arch=x86_64&repo=os: (28,'connect() timed out!')

Error: Cannot retrieve metalink for repository: epel. Please verify its path and try again

I did wget http://mirrorlist.centos.org/?release=6&arch=x86_64&repo=os. It never goes through. So I know I've to change this somehow.
Can anyone tell suggest me how to fix this. I found many posts related to this problem over here; but couldn't find a proper solution for this.

My /etc/resolve.conf is:

nameserver 130.102.115.238

nameserver 130.102.128.53

nameserver 130.102.2.53

I tried adding nameserver 8.8.8.8. It didn't work.

My /etc/yum.repos.d/Centos-Base.repo is:

[base]

name=CentOS-$releasever - Base

mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os

#baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/

gpgcheck=1

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6



#released updates

[updates]

name=CentOS-$releasever - Updates

mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates

#baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/

gpgcheck=1

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6



#additional packages that may be useful

[extras]

name=CentOS-$releasever - Extras

mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras

#baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/

gpgcheck=1

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6



#additional packages that extend functionality of existing packages

[centosplus]

name=CentOS-$releasever - Plus

mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus

#baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/

gpgcheck=1

enabled=0

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6



#contrib - packages by Centos Users

[contrib]

name=CentOS-$releasever - Contrib

mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib

#baseurl=http://mirror.centos.org/centos/$releasever/contrib/$basearch/

gpgcheck=1

enabled=0

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6

I tried commenting the mirrorlists and uncommenting the baseurls. Didn't work.
I really need some help with this. Stuck on this for sometime now.

PS I am trying to set a Hadoop node using Cloudera. That's when I encountered this problem. So I tried doing a yum update individually to figure out what's wrong.

It looks like you don't have the proxy information configured in your repo file. According to http://www.centos.org/docs/5/html/yum/sn-yum-proxy-server.html, you have to specify your proxy, proxy_username, and proxy_password in yum.conf. This doc is for CentOS 5, but it should hold for CentOS 6 as well.

In my case, I have a proxy:port settings. I edited the /etc/yum.conf file, but forgot the port number after the proxy= entry.

proxy=http://your.proxyhost.org:8080

I was seeing this exact error as stated above, so I rechecked the yum.conf file and added the correct port and it works.

I had the same issue regarding this error: Cannot find a valid baseurl for repo: base and
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=6&arch=i386&repo=os&infra=stock

As root (su - root) and provide your username password, you should be in the sudoers file.

Then:

vim /etc/yum.repos.d/CentOS-Base.repo

Modify all only these three sections (base, update and extra) by adding the correct baseurl depending on your centos versions. Keep uncommented the previous baseurl.

Just add this line in all 3 sections:

baseurl=http://mirror.centos.org/centos/6.6/os/i386/

The issue is that yum doesn't find the correct url (obsolete).

I did it and yum just started uploading the packages. No Proxy needed (use proxy if your connection need it), other direct internet connection in you centos settings. Good Luck.

it cause of nameserver

solution is

nano /etc/resolv.conf

and insert

nameserver 8.8.8.8
nameserver 8.8.4.4

it all work!

I have come across to the same problem and got the solution after doing some network configurations changes to the file presented at /etc/sysconfig/network-scripts/your etherenet file.

DEVICE=eth1

BOOTPROTO=static

ONBOOT=yes

TYPE=Ethernet

IPV6INIT=yes

IPV6_AUTOCONF=no

NETWORK=X.X.X.X

NETMASK=X.X.X.X

IPADDR=X.X.X.X

GATEWAY=X.X.X.X

DNS1=X.X.X.X

DNS2=X.X.X.X

USERCTL=no