X-Git-Url: http://git.annexia.org/?p=libguestfs.git;a=blobdiff_plain;f=guestfish-actions.pod;h=7b5a4bed6d959d2aef75baad36e52dfd46ab5fdc;hp=9146c41a00211f89dd4912a4798cdd9ae41f5fdb;hb=d901cc916102f1aaccfb73396b48aa303e5b8cd7;hpb=5d628a4a9cc11eb9a61a1dc683aadca9ac378736;ds=sidebyside

diff --git a/guestfish-actions.pod b/guestfish-actions.pod
index 9146c41..7b5a4be 100644
--- a/guestfish-actions.pod
+++ b/guestfish-actions.pod
@@ -1283,3 +1283,18 @@ How many blocks are zeroed isn't specified (but it's I<not> enough
 to securely wipe the device).  It should be sufficient to remove
 any partition tables, filesystem superblocks and so on.
 
+=head2 zerofree
+
+ zerofree device
+
+This runs the I<zerofree> program on C<device>.  This program
+claims to zero unused inodes and disk blocks on an ext2/3
+filesystem, thus making it possible to compress the filesystem
+more effectively.
+
+You should B<not> run this program if the filesystem is
+mounted.
+
+It is possible that using this program can damage the filesystem
+or data on the filesystem.
+