nfsroot: allow nfsroot to survive netbase init

The patch adds a script in /etc/network/if-pre-up.d,
the script returns 1 (effectly skip the ifup on the iface) iff:
  1. there is a "* / (nfs|nfs4) *" entry in the /proc/mounts
  2. the addr field in that entry is routed using $IFACE

Signed-off-by: Qing He <qing.he@intel.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/meta/packages/netbase/netbase_4.41.bb b/meta/packages/netbase/netbase_4.41.bb
index a3e2e87424..88b524ffd2 100644
--- a/meta/packages/netbase/netbase_4.41.bb
+++ b/meta/packages/netbase/netbase_4.41.bb
@@ -17,7 +17,8 @@ INITSCRIPT_PARAMS_slugos = "start 42 S 0 6 ."
 SRC_URI = "${DEBIAN_MIRROR}/main/n/netbase/netbase_${PV}.tar.gz \
            file://init \
            file://hosts \
-           file://interfaces"
+           file://interfaces \
+           file://nfsroot"
 
 do_install () {
         install -d ${D}${sysconfdir}/init.d \
@@ -33,6 +34,7 @@ do_install () {
         install -m 0644 etc-protocols ${D}${sysconfdir}/protocols
         install -m 0644 etc-services ${D}${sysconfdir}/services
         install -m 0644 ${WORKDIR}/interfaces ${D}${sysconfdir}/network/interfaces
+        install -m 0755 ${WORKDIR}/nfsroot ${D}${sysconfdir}/network/if-pre-up.d
 
         # Disable network manager on machines that commonly do NFS booting
         case "${MACHINE}" in