[PATCH] dracut-module-setup.sh: use auto6 for ipv6

[Pingfan Liu]

The parameter either6 is introduced to dracut by
commit 67354eebbcd4c358b8194ba5fd1ab1cf7dbd42aa
Author: Pingfan Liu <piliu(a)redhat.com&gt;
Date:   Tue Apr 24 16:41:21 2018 +0800

    40network: introduce ip=either6 option

But now, dracut has switched from network-legancy to network-manager, which
can not perceive 'either6' option, and accepts only either 'auto6' or
'dhcp6' parameter.

Take a look at either6 option, it tries its best to find a workable method
by using dhcp6 as the fallback of auto6. Actually, the NetworkManager
options ipv6.method=auto has achieved this goal.

When using auto6, NetworkManager will automatically start DHCPv6 if the
router announces to do so.

Naturally, switching from either6 to auto6 to adapt to change.

Signed-off-by: Pingfan Liu <piliu(a)redhat.com&gt;
---
 dracut-module-setup.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dracut-module-setup.sh b/dracut-module-setup.sh
index 5c41e63..ec1ccc5 100755
--- a/dracut-module-setup.sh
+++ b/dracut-module-setup.sh
@@ -373,7 +373,7 @@ kdump_install_net() {
     if [ -n "$_static" ]; then
         _proto=none
     elif is_ipv6_address $_srcaddr; then
-        _proto=either6
+        _proto=auto6
     else
         _proto=dhcp
     fi
-- 
2.7.5