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"Couldn't resolve host ''" when doing a yum update from Sandbox 4.0.1

Question asked by minnow-noir on Feb 7, 2015
Latest reply on Feb 8, 2015 by sollala
I'm trying out the Sandbox VM, but unable to update the OS or install anything because Yum cannot access the MapR packages.  The VM can reach other internet sites. 

Following the instructions, I ssh into the VM and try to do just a basic yum update, and the update fails.

    [mapr@maprdemo mapr]# sudo yum update
    Loaded plugins: fastestmirror
    Loading mirror speeds from cached hostfile
    epel/metalink                                                      |  15 kB     00:00
     * base:
     * epel:
     * extras:
     * updates: [Errno 14] PYCURL ERR
    OR 6 - "Couldn't resolve host ''"
    Trying other mirror.
    Error: Cannot retrieve repository metadata (repomd.xml) for repository: MapR_Ecosystem. Pl
    ease verify its path and try again

The VM is able to reach the internet:

    [mapr@maprdemo mapr]# ping
    PING ( 56(84) bytes of data.
    64 bytes from ( icmp_seq=1 ttl=250 time=26.5 ms
    64 bytes from ( icmp_seq=2 ttl=250 time=553 ms

Any ideas?