Date: Wed, 19 Mar 2008 11:10:02 GMT From: Robert Schulze <rs@bytecamp.net> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/121566: [nfs] [request] ethernet iface should be brought up when booting from a mfs_root over nfs Message-ID: <200803191110.m2JBA2Jt091527@freefall.freebsd.org>
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The following reply was made to PR kern/121566; it has been noted by GNATS.
From: Robert Schulze <rs@bytecamp.net>
To: bug-followup@FreeBSD.org, rs@bytecamp.net
Cc:
Subject: Re: kern/121566: [nfs] [request] ethernet iface should be brought
up when booting from a mfs_root over nfs
Date: Wed, 19 Mar 2008 11:30:39 +0100
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Hi,
I found a workaround to simulate the behaviour of
/sys/nfsclient/nfs_vfsops.c in rc.initdiskless.
The patch in "diff -Naur" format is attached.
with kind regards,
Robert Schulze
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Content-Type: text/x-patch;
name="rc.initdiskless.patch"
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filename="rc.initdiskless.patch"
--- rc.initdiskless.dflt Thu Mar 13 10:08:51 2008
+++ rc.initdiskless Wed Mar 19 11:21:32 2008
@@ -163,6 +163,30 @@
fi
}
+# Fire up an interface to do nfs-mounts if this machine
+# was booted from a md_root
+# Use kenv to get the configuration vom dhcp like
+# /sys/nfsclient/nfs_vfsops.c does
+
+ifconfig_kenv()
+{
+echo "trying to up an interface with options from kenv..."
+
+IF=`kenv | grep 'boot.netif.name' | awk 'BEGIN {FS="="} {print $2}' | sed 's/"//g'`
+GW=`kenv | grep 'boot.netif.gateway' | awk 'BEGIN {FS="="} {print $2}' | sed 's/"//g'`
+IP=`kenv | grep 'boot.netif.ip' | awk 'BEGIN {FS="="} {print $2}' | sed 's/"//g'`
+NM=`kenv | grep 'boot.netif.netmask' | awk 'BEGIN {FS="="} {print $2}' | sed 's/"//g'`
+
+if [ ! "$1" = "$IF" ]; then
+ return 0
+fi
+
+echo "kenv: IF=$IF GW=$GW IP=$IP MASK=$NM"
+ifconfig $IF $IP netmask $NM up
+route add default $GW
+
+}
+
# DEBUGGING
#
# set -v
@@ -176,6 +200,12 @@
if [ ${dlv:=0} -ne 0 ] ; then
iflist=`ifconfig -l`
for i in ${iflist} ; do
+
+ ifconfig ${i} | grep -q inet
+ if [ $? -ne "0" ] ; then
+ ifconfig_kenv ${i}
+ fi
+
set -- `ifconfig ${i}`
while [ $# -ge 1 ] ; do
if [ "${bootp_ifc}" = "" -a "$1" = "inet" ] ; then
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