The
virt-manager
application may fail to launch and display an error such as “
Unable to open a connection to the Xen hypervisor/daemon”. This is usually caused by a missing
localhost
entry in the
/etc/hosts
file. Verify that you indeed have a
localhost
entry and if it is missing from
/etc/hosts
and insert a new entry for
localhost
if it is not present. An incorrect
/etc/hosts
may resemble the following:
# Do not remove the following line, or various programs
# that require network functionality will fail.
localhost.localdomain localhost
The correct entry should look similar to the following:
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost
localhost.localdomain localhost