--- zfs-snapshot-mgmt	2010-06-02 05:31:28.759931924 +0300
+++ zfs-snapshot-mgmt	2010-06-01 01:49:46.665034414 +0300
@@ -127,8 +127,10 @@
   end
 
   def snapshots(prefix)
-    path = File.join(@mount_point, '.zfs', 'snapshot')
-    Dir.open(path).select do |name|
+#    path = File.join(@mount_point, '.zfs', 'snapshot')
+#    Dir.open(path).select do |name|
+    s = IO.popen('zfs list -r -t snapshot -H -o name ' + @name).readlines.collect.select { |item| item[0, @name.length + 1] == @name + '@' }.map { |item| item[@name.length + 1 .. -1] }
+    s.select do |name|
       name[0, prefix.length] == prefix
     end.map { |name| SnapshotInfo.new(name, @name, prefix) }
   end