This violates the ip= handling as documented in
https://www.kernel.org/doc/Documentation/filesystems/nfs/nfsroot.txt
---- a/scripts/boot/9990-netbase.sh
-+++ b/scripts/boot/9990-netbase.sh
+--- a/components/9990-netbase.sh
++++ b/components/9990-netbase.sh
@@ -44,7 +44,6 @@
ifaddress="$(echo ${ifline} | cut -f2 -d ':')"
ifnetmask="$(echo ${ifline} | cut -f3 -d ':')"