Drop nameserver handling from ip= boot parameter.

In commit ab6364da036b4b09c0e5c92b0e21c4d43e4bd4c2
("Adding support for nameserver in ip= boot parameter.")
Debian's live-boot added support for handling nameserver
option inside the ip= boot parameter.

This violates the ip= handling as documented in
https://www.kernel.org/doc/Documentation/filesystems/nfs/nfsroot.txt

diff --git a/components/9990-netbase.sh b/components/9990-netbase.sh
index a32a47b..6fb7988 100755 (executable)
--- a/components/9990-netbase.sh
+++ b/components/9990-netbase.sh
@@ -49,7 +49,6 @@ EOF
                        ifaddress="$(echo ${ifline} | cut -f2 -d ':')"
                        ifnetmask="$(echo ${ifline} | cut -f3 -d ':')"
                        ifgateway="$(echo ${ifline} | cut -f4 -d ':')"
-                       nameserver="$(echo ${ifline} | cut -f5 -d ':')"
 
 cat >> "${IFFILE}" << EOF
 allow-hotplug ${ifname}
@@ -67,17 +66,6 @@ cat >> "${IFFILE}" << EOF
 EOF
 
                        fi
-
-                       if [ -n "${nameserver}" ]
-                       then
-                               if [ -e "${DNSFILE}" ]
-                               then
-                                       grep -v ^nameserver "${DNSFILE}" > "${DNSFILE}.tmp"
-                                       mv "${DNSFILE}.tmp" "${DNSFILE}"
-                               fi
-
-                               echo "nameserver ${nameserver}" >> "${DNSFILE}"
-                       fi
                done
        else
                if [ -z "${NETBOOT}" ] || [ -n "${DHCP}" ]