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-rw-r--r--meta/recipes-core/init-ifupdown/init-ifupdown-1.0/nfsroot39
1 files changed, 39 insertions, 0 deletions
diff --git a/meta/recipes-core/init-ifupdown/init-ifupdown-1.0/nfsroot b/meta/recipes-core/init-ifupdown/init-ifupdown-1.0/nfsroot
new file mode 100644
index 0000000..750c0a9
--- /dev/null
+++ b/meta/recipes-core/init-ifupdown/init-ifupdown-1.0/nfsroot
@@ -0,0 +1,39 @@
1#! /bin/sh
2
3# In case the interface is used as nfsroot, avoid ifup, otherwise
4# nfsroot may lose response
5
6nfsroot=0
7
8if test "x$IFACE" = xlo ; then
9 exit 0
10fi
11
12exec 9<&0 < /proc/mounts
13while read dev mtpt fstype rest; do
14 if test $mtpt = "/" ; then
15 case $fstype in
16 nfs | nfs4)
17 nfsroot=1
18 nfs_addr=`echo $rest | sed -e 's/^.*addr=\([0-9.]*\).*$/\1/'`
19 break
20 ;;
21 *)
22 ;;
23 esac
24 fi
25done
26exec 0<&9 9<&-
27
28test $nfsroot -eq 0 && exit 0
29
30if [ -x /bin/ip -o -x /sbin/ip ] ; then
31 nfs_iface=`ip route get $nfs_addr | grep dev | sed -e 's/^.*dev \([-a-z0-9.]*\).*$/\1/'`
32fi
33
34if test "x$IFACE" = "x$nfs_iface" ; then
35 echo "ifup skipped for nfsroot interface $nfs_iface"
36 exit 1
37fi
38
39exit 0