=== modified file 'zsh-functions/confz_fs_init'
--- zsh-functions/confz_fs_init	2015-04-20 12:21:22 +0000
+++ zsh-functions/confz_fs_init	2015-04-20 12:12:40 +0000
@@ -250,7 +250,7 @@
 		die "$0: lvm pvs command returned error"
 	do_command=( lvm vgextend ${vars[vg_name]} )
 	for device in $vg_devices; do
-		[[ $+devices[$device] == 1 && $devices[$device] == $vars[vg_name] ]] || \
+		[[ $+devices[$device] && $devices[$device] == $vars[vg_name] ]] || \
 			do_command+=( $device )
 	done
 	(( $#do_command == 3 ))