add check for occasional problem

diff --git a/mount-latest-subvol b/mount-latest-subvol
index cddb714df7962b2fb48521800e07b471267250ff..9fd99326b81afd4475dbcd1406dffd5cb6365abb 100644 (file)
--- a/mount-latest-subvol
+++ b/mount-latest-subvol
@@ -317,6 +317,7 @@ for vol in ${all_vols[@]}; do
   ##### end building up list of bind mounts  ######
 
 
+
   # if latest is already mounted, make sure binds are mounted and move on
   m check-subvol-stale $d
   # populated by check-subvol-stale if stale
@@ -335,6 +336,28 @@ for vol in ${all_vols[@]}; do
     continue
   fi
 
+
+  ##### begin checking for loopback mounts ####
+  found_loop=false
+  for l in $(losetup -ln|awk '{print $6}'); do
+    for dir in $d ${binds[@]}; do
+      if [[ $l == $dir* ]]; then
+        echo "$0: found loopback mount $l. giving up on unmounting $dir"
+        ret=1
+        found_loop=true
+        break
+      fi
+    done
+    if $found_loop; then
+      break
+    fi
+  done
+  if $found_loop; then
+    continue
+  fi
+  ##### end end checking loopback mounts ####
+
+
   ## not using arbtt at the moment
   # if [[ $vol == q ]]; then
   #   ## allow to fail, user might not be logged in