fix alignment

1 files changed, 10 insertions, 1 deletions

diff --git a/src/partvi b/src/partvi
index 322b5ba..16e14b3 100755
--- a/src/partvi
+++ b/src/partvi
@@ -164,13 +164,22 @@ do
         else
                 partuuid=
         fi
-        #stat -L --format="$part %s" "$part"
         $sudo losetup -L -f "$part"
         dev=$(losetup -j "$part" -O NAME --noheadings)
         devsz=$($sudo blockdev --getsz $dev)
+
+        alignment_error=$((devsz % 2048))
+
         printf '%d %d linear %s 0\n' $start $devsz "$dev" >> "$map"
         start=$((start + devsz))
 
+        if [ $alignment_error -gt 0 ]
+        then
+                devsz=$((2048 - alignment_error))
+                printf '%d %d zero\n' $start $devsz >> "$map"
+                start=$((start + devsz))
+        fi
+
 done
 $sudo dmsetup -v create "$map_name" "$map"
 $sudo dmsetup remove "$map_name"