From bdb01ba302ac1c351f62d95f123b722a5281be15 Mon Sep 17 00:00:00 2001
From: Marco Amadori <amadorim@vdavda.com>
Date: Tue, 16 Sep 2008 16:24:37 +0200
Subject: [PATCH] Included more debug and comments on persistence code.

Signed-off-by: Marco Amadori <amadorim@vdavda.com>
---
 scripts/live         | 8 +++++++-
 scripts/live-helpers | 5 +++--
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/scripts/live b/scripts/live
index b7fd4ce..f9e4fe2 100755
--- a/scripts/live
+++ b/scripts/live
@@ -908,10 +908,14 @@ try_snap ()
 			cd "${snap_mount}"
 			zcat "${snapback}/${snapfile}" | /bin/cpio --extract --preserve-modification-time --no-absolute-filenames --sparse --unconditional --make-directories > /dev/null 2>&1
 			RES=$?
+			if [ "${RES}" != "0" ]
+			then
+				log_warning_msg "failure to \"zcat ${snapback}/${snapfile} | /bin/cpio --extract --preserve-modification-time --no-absolute-filenames --sparse --unconditional --make-directories\""
+			fi
 			cd "${OLDPWD}"
 		fi
 
-		umount "${snapback}"
+		umount "${snapback}" ||  log_warning_msg "failure to \"umount ${snapback}\""
 
 		if [ "${RES}" != "0" ]
 		then
@@ -919,10 +923,12 @@ try_snap ()
 		fi
 
 	else
+		# Try to find if it could be a snapshot partition
 		dev=$(find_cow_device "${snap_label}")
 
 		if [ -b "${dev}" ]
 		then
+			log_success_msg "found snapshot device on ${dev}"
 			if echo "${dev}" | grep -qs loop
 			then
 				# strange things happens, user confused?
diff --git a/scripts/live-helpers b/scripts/live-helpers
index 19cc955..2641487 100644
--- a/scripts/live-helpers
+++ b/scripts/live-helpers
@@ -146,7 +146,7 @@ fs_size ()
 			mountp="/mnt/tmp_fs_size"
 
 			mkdir -p "${mountp}"
-			mount -t $(get_fstype "${dev}") -o ro "${dev}" "${mountp}"
+			mount -t $(get_fstype "${dev}") -o ro "${dev}" "${mountp}" || log_warning_msg "cannot mount -t $(get_fstype ${dev}) -o ro ${dev} ${mountp}"
 
 			doumount=1
 		fi
@@ -163,7 +163,7 @@ fs_size ()
 
 	if [ -n "${doumount}" ]
 	then
-		umount "${mountp}"
+		umount "${mountp}" || log_warning_msg "cannot umount ${mountp}"
 		rmdir "${mountp}"
 	fi
 
@@ -349,6 +349,7 @@ find_files ()
 						if [ -f "${snap_backing}/${filename}" ]
 						then
 							echo "${devname} ${snap_backing} ${filename}"
+							# return without mounting, it will be umounted later
 							return 0
 						fi
 					done
-- 
2.1.4