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+++ This bug was initially created as a clone of Bug #822930 +++

Description of problem:
VM migration failed with empty resolv.conf after registered to RHEVM

Version-Release number of selected component:
rhev-hypervisor6-6.3-20120516.0.el6

How reproducible:
100%

Not Regression

Priority: High

Steps to Reproduce:
1. install rhev-hypervisor6-6.3-20120516.0.el6 to the machine
2. register it to rhevm
3. find the /etc/resolv.conf was empty
4. Connect to NFS storage, and create VMs on the RHEVH host


Actual results:
resolv.conf is empty, which results in DNS error and vm migration failure.[migerrorvdsm.log]
But the resolv.conf wouldn't be empty, after rebooted the rhevh. Then vm migration still failed.
If the hostnames of srchost and desthost are different, I modified the host-name setted on rhevm as the hostname of RHEVH, the migration is successful.[pic successfulmig.png]


Expected results:
vm migration should be successful.


Additional info:

This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.

This request was erroneously removed from consideration in Red Hat Enterprise Linux 6.4, which is currently under development.  This request will be evaluated for inclusion in Red Hat Enterprise Linux 6.4.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2013-0556.html