On Wed, Jun 02, 2010 at 08:01:47AM -0400, Yufang Zhang wrote:

Can I ask if zerofree or resize2fs could also be applicable to ext4? Guestfish help of these two commands indicates that they are applicable to ext2/3. But ext4 is not covered in the help. However, I have tested these two commands in my Fedora 12 laptop, and it seems that both commands work well with ext4. So I don't quite understand why the help of these two commands only mention ext2/3. Is it a supported feature that these two commands work with ext4?

resize2fs: Yes, this will work on ext4. It should say this in the documentation. See the attached patch. zerofree: I'm cautious about claiming this works on ext4. It may work in some cases and break in others (for example, if a file uses extents). Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones libguestfs lets you edit virtual machines. Supports shell scripting, bindings from many languages. http://et.redhat.com/~rjones/libguestfs/ See what it can do: http://et.redhat.com/~rjones/libguestfs/recipes.html