diff -ruN /usr/share/genkernel.orig/generic/linuxrc /usr/share/genkernel/generic/linuxrc
--- /usr/share/genkernel.orig/generic/linuxrc	2008-10-20 13:38:45.000000000 +0200
+++ /usr/share/genkernel/generic/linuxrc	2008-10-20 13:20:31.000000000 +0200
@@ -180,6 +180,9 @@
 		real_rootflags\=*)
 			REAL_ROOTFLAGS=`parse_opt "${x}"`
 		;;
+		tmprootsize\=*)
+			TMPROOTSIZE=`parse_opt "${x}"`
+		;;
 		keymap\=*)
 			keymap=`parse_opt "${x}"`
 		;;
@@ -354,8 +357,49 @@
 					continue
 				fi
 				;;
+			IMAGE\=http:*|IMAGE\=ftp:*)
+
+				ROOT_DEV=${REAL_ROOT#*=*}
+				retval=1
+
+				good_msg "Making tmpfs for ${NEW_ROOT}"
+				if [ -n "${TMPROOTSIZE}" ]; then
+					mount -t tmpfs tmpfs ${NEW_ROOT} -o size="${TMPROOTSIZE}"
+				else
+					mount -t tmpfs tmpfs ${NEW_ROOT}
+				fi
+
+				good_msg "Starting retrieval of ${ROOT_DEV}"
+				case "${ROOT_DEV}" in
+					*.tgz|*.tar.gz)
+				 		wget -O- "${ROOT_DEV}" | tar -xzf- -C ${NEW_ROOT}
+						retval=$?
+					;;
+					*.tar.bz2)
+			 			wget -O- "${ROOT_DEV}" | tar -xjf- -C ${NEW_ROOT}
+						retval=$?
+					;;
+					*)
+						bad_msg "Only tgz, tar.gz, tar.bz2 images supported"
+						exit 1
+					;;
+				esac
+
+				if [ "${retval}" -eq '0' ]
+				then
+					good_msg "Retrieval and unpacking of image successful"
+					got_good_root=1
+					break 2 # tmpfs will be root, doesn't need mounting
+				else
+					bad_msg "Retrieval or unpacking failed, will unmount and retry..."
+					umount ${NEW_ROOT}
+					sleep 10 
+					got_good_root=0
+					continue
+				fi
+				;;
 		esac
-				
+
 		if [ "${REAL_ROOT}" = '' ]
 		then
 			# No REAL_ROOT determined/specified. Prompt user for root block device.
diff -ruN /usr/share/genkernel.orig/x86/busy-config /usr/share/genkernel/x86/busy-config
--- /usr/share/genkernel.orig/x86/busy-config	2008-10-20 13:38:46.000000000 +0200
+++ /usr/share/genkernel/x86/busy-config	2008-10-20 12:03:55.000000000 +0200
@@ -105,7 +105,7 @@
 # CONFIG_FEATURE_RPM_BZ2 is not set
 CONFIG_TAR=y
 CONFIG_FEATURE_TAR_CREATE=y
-# CONFIG_FEATURE_TAR_BZIP2 is not set
+CONFIG_FEATURE_TAR_BZIP2=y
 # CONFIG_FEATURE_TAR_LZMA is not set
 # CONFIG_FEATURE_TAR_FROM is not set
 CONFIG_FEATURE_TAR_GZIP=y
@@ -628,7 +628,7 @@
 # CONFIG_FEATURE_UDHCP_DEBUG is not set
 # CONFIG_FEATURE_RFC3397 is not set
 # CONFIG_VCONFIG is not set
-# CONFIG_WGET is not set
+CONFIG_WGET=y
 # CONFIG_FEATURE_WGET_STATUSBAR is not set
 # CONFIG_FEATURE_WGET_AUTHENTICATION is not set
 # CONFIG_FEATURE_WGET_LONG_OPTIONS is not set
diff -ruN /usr/share/genkernel.orig/x86_64/busy-config /usr/share/genkernel/x86_64/busy-config
--- /usr/share/genkernel.orig/x86_64/busy-config	2008-10-20 13:38:46.000000000 +0200
+++ /usr/share/genkernel/x86_64/busy-config	2008-10-20 12:03:46.000000000 +0200
@@ -105,7 +105,7 @@
 # CONFIG_FEATURE_RPM_BZ2 is not set
 CONFIG_TAR=y
 CONFIG_FEATURE_TAR_CREATE=y
-# CONFIG_FEATURE_TAR_BZIP2 is not set
+CONFIG_FEATURE_TAR_BZIP2=y
 # CONFIG_FEATURE_TAR_LZMA is not set
 # CONFIG_FEATURE_TAR_FROM is not set
 CONFIG_FEATURE_TAR_GZIP=y
@@ -628,7 +628,7 @@
 # CONFIG_FEATURE_UDHCP_DEBUG is not set
 # CONFIG_FEATURE_RFC3397 is not set
 # CONFIG_VCONFIG is not set
-# CONFIG_WGET is not set
+CONFIG_WGET=y
 # CONFIG_FEATURE_WGET_STATUSBAR is not set
 # CONFIG_FEATURE_WGET_AUTHENTICATION is not set
 # CONFIG_FEATURE_WGET_LONG_OPTIONS is not set