check for loop devices and fix debug printing

git-svn-id: svn+ssh://svn.gentoo.org/var/svnroot/genkernel/trunk@39 67a159dc-881f-0410-a524-ba9dfbe2cb84

gen_compile.sh

@@ -191,10 +191,11 @@ compile_modules() {
 compile_kernel() {
 	[ "${KERNEL_MAKE}" = "" ] && gen_die "KERNEL_MAKE undefined. Don't know how to compile kernel for arch."
 	cd ${KERNEL_DIR}
-	print_info 1 "kernel: Starting compile of linux ${KV} ${KERNEL_MAKE}"
+	print_info 1 "kernel: Starting compile of linux ${KV} ${KERNEL_MAKE_DIRECTIVE}"
 	compile_generic "${KERNEL_MAKE_DIRECTIVE}" kernel
 	if [ "${KERNEL_MAKE_DIRECTIVE_2}" != "" ]
 	then
+		print_info 1 "kernel: Starting suppliment compile of linux ${KV} ${KERNEL_MAKE_DIRECTIVE_2}"
 		compile_generic "${KERNEL_MAKE_DIRECTIVE_2}" kernel
 	fi
 	cp "${KERNEL_BINARY}" "/boot/kernel-${KV}" || gen_die "Could not copy kernel binary to boot"
@@ -219,7 +220,7 @@ compile_busybox() {
 #			UTILS_CC="${TEMP}/diet/bin/diet ${UTILS_CC}"
 #		fi
 		print_info 1 "Busybox: make oldconfig"
-		compile_generic "oldconfig" utils
+		yes "" | compile_generic "oldconfig" utils
 		print_info 1 "Busybox: make all"
 		compile_generic "all" utils
 # Busybox and dietlibc don't play nice right now

gen_funcs.sh

@@ -167,3 +167,14 @@ gen_die() {
 	fi
   	exit 1
 }
+
+has_loop() {
+	if [ -e "/dev/loop0" -o -e "/dev/loop/0" ]
+	then
+		# We found devfs or standard dev loop device, assume
+		# loop is compiled into the kernel or the module is loaded
+		return 0
+	else
+		return 1
+	fi
+}

genkernel

@@ -50,6 +50,13 @@ determine_real_args
 print_info 1 "ARCH: ${ARCH}"
 print_info 1 "KERNEL VER: ${KV}"
 
+if !has_loop
+then
+	print_info 1 "Your kernel does not appear to have loop device support. "
+	print_info 1 "Please 'modprobe loop' if it is a module before running genkernel"
+	gen_die "----Load loop support----"
+fi
+
 # Configure kernel
 config_kernel