Handle failure of carrier check in configure_safe_defaults()

Configure_safe_defaults() should handle carrier check failures
in the same way as the change that was made to
dhcp-all-interfaces.sh in https://review.openstack.org/#/c/419527/.
That is, it should ignore failures when cat'ing the carrier file.

Change-Id: I100a40835d0ccecee9b4851aae6366c6ab4813a5
Closes-Bug: 1712687
(cherry picked from commit ed976d285c)
This commit is contained in:
Bob Fournier 2017-08-23 17:15:34 -04:00 committed by Emilien Macchi
parent 98f578b778
commit 56eaad835d

View File

@ -75,12 +75,13 @@ EOF_CAT
if [ "$mac_addr_type" != "0" ]; then
echo "Device has generated MAC, skipping."
else
ip link set dev $iface up &>/dev/null
HAS_LINK="$(cat /sys/class/net/${iface}/carrier)"
HAS_LINK="$(cat /sys/class/net/${iface}/carrier || echo 0)"
TRIES=10
while [ "$HAS_LINK" == "0" -a $TRIES -gt 0 ]; do
HAS_LINK="$(cat /sys/class/net/${iface}/carrier)"
# Need to set the link up on each iteration
ip link set dev $iface up &>/dev/null
HAS_LINK="$(cat /sys/class/net/${iface}/carrier || echo 0)"
if [ "$HAS_LINK" == "1" ]; then
break
else