[PATCH 2/2] Add nfsroot option handler

[Seewer Philippe <philippe.seewer-omB+W0Dpw2o@public.gmane.org>]

This just parses for root=/dev/nfs and then sets the correct variables 
for the mount script, which automatically uses mount.nfs

---
 modules.d/40nfsroot/check      |    5 +++++
 modules.d/40nfsroot/install    |    7 +++++++
 modules.d/40nfsroot/nfsroot.sh |   16 ++++++++++++++++
 3 files changed, 28 insertions(+), 0 deletions(-)

diff --git a/modules.d/40nfsroot/check b/modules.d/40nfsroot/check
new file mode 100755
index 0000000..b7378c3
--- /dev/null
+++ b/modules.d/40nfsroot/check
@@ -0,0 +1,5 @@
+#!/bin/sh
+#
+# This is not a module that should be selected when we try to
+# autoconfigure the initrd 
+exit 1
diff --git a/modules.d/40nfsroot/install b/modules.d/40nfsroot/install
new file mode 100755
index 0000000..b68e5d8
--- /dev/null
+++ b/modules.d/40nfsroot/install
@@ -0,0 +1,7 @@
+#!/bin/bash
+dracut_install mount.nfs portmap
+
+instmods nfs
+
+# install our scripts and hooks
+inst_hook pre-mount 20 "$moddir/nfsroot.sh"
diff --git a/modules.d/40nfsroot/nfsroot.sh b/modules.d/40nfsroot/nfsroot.sh
new file mode 100755
index 0000000..757f162
--- /dev/null
+++ b/modules.d/40nfsroot/nfsroot.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+#
+# Parse nfsroot options, set NETBOOT to yes to enable mininm.sh and
+# start portmap for nfsmounting 
+
+getarg 'root=/dev/nfs' || continue;
+
+NETBOOT="yes"
+
+nfsroot=$(getarg 'nfsroot=')
+
+fstype="-t nfs"
+rflags=${nfsroot##*:}
+root=${nfsroot%:*}
+
+/sbin/portmap
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