support DNS in boot environment

Thanks to Ulrich Dangel for discovering this. [Closes: issue848]

diff --git a/backend/initramfs-tools/live.hook b/backend/initramfs-tools/live.hook
index da0457c..d5765bb 100755 (executable)
--- a/backend/initramfs-tools/live.hook
+++ b/backend/initramfs-tools/live.hook
@@ -221,23 +221,26 @@ fi
 
 # Some experimental stuff
 
-case "${LIVE_DNS}" in
-       true)
-               [ "${QUIET}" ] || echo -n " dns"
-
-               # /lib/libnss_dns.so.*:a   DNS
-               # /lib/libnss_files.so.*:  /etc/hosts and /etc/passwd
-               # /lib/libnss_compat.so.*: /etc/passwd
-
-               for _SHLIB in $(find /lib -name 'libnss_dns.so.*')
-               do
-                       copy_exec "${_SHLIB}"
-               done
-
-               # might be needed if /etc/hosts is used
-               #mkdir -p "${DESTDIR}/etc"
-               #cp -p /etc/nsswitch.conf "${DESTDIR}/etc"
-               ;;
-esac
+[ "${QUIET}" ] || echo -n " dns"
+
+# /lib/libnss_dns.so.*:a   DNS
+# /lib/libnss_files.so.*:  /etc/hosts and /etc/passwd
+# /lib/libnss_compat.so.*: /etc/passwd
+
+for _SHLIB in $(find /lib -name 'libnss_dns.so.*')
+do
+       copy_exec "${_SHLIB}"
+done
+
+# might be needed if /etc/hosts is used
+#mkdir -p "${DESTDIR}/etc"
+#cp -p /etc/nsswitch.conf "${DESTDIR}/etc"
+
+# vlan support
+if [ -x /sbin/vconfig ]
+then
+       copy_exec /sbin/vconfig
+       manual_add_modules 8021q
+fi
 
 [ "${QUIET}" ] || echo .