commit f75e8ece2db2516f9de4260f12c7a18e2bbd777b
author henryhsu <henryhsu@chromium.org> Tue Dec 10 11:25:10 2013
committer chrome-internal-fetch <chrome-internal-fetch@google.com> Mon Dec 16 11:29:59 2013
tree 86beb82aaa8becf27b5538dc2ac7f1c8be86c1a8
parent b793b64dafc283df598c6528b21a4efa13a95bcd

fix netboot installshim stuck in DHCP

netboot use busybox ifconfig and this output is different with usb
install shim. Use ip to get network information.
'ip -f link addr' to show all interfaces and filter ether type.
'ip -f inet addr' to show all interfaces which have IP address.

BUG=chrome-os-partner:24442
TEST=manually test for netboot
CQ-DEPEND=CL:180153

Change-Id: I26032416e3022d8034e4b165ac94a3be49e2602a
Reviewed-on: https://chromium-review.googlesource.com/179396
Reviewed-by: Heng-ruey Hsu <henryhsu@chromium.org>
Commit-Queue: Heng-ruey Hsu <henryhsu@chromium.org>
Tested-by: Heng-ruey Hsu <henryhsu@chromium.org>