On Thu, Jan 31, 2013 at 11:12:54PM +0200, Evaggelos Balaskas wrote:

I use my "custom" TMPDIR variable with virt-sparsify.

I just type:

export -p TMPDIR=/mnt/vm/tmpdir

I do that for a couple reasons: either my /tmp is on a ramdisk or /tmp is on my (ssd) rootfs and i dont want to "full" my / with the temporally files.

Thats said, i was thinking to "ask" OR sending a patch for adding a tmpdir OPTION for virt-sparsify like

virt-sparsify -t /mnt/vm/tmpdir f18.qcow2 f18.qcow2.spars

before contribute .... i was eager to ask for your thoughts.

Do you believe this would be useful or too much trouble for nothing ? Do you believe that we could use a TMPDIR option for liguestfs in general ?

I think this would be a useful option. Also because it could set just the tmpdir for the huge qcow2 images (not for libguestfs itself) so it would be more efficient than setting $TMPDIR. It doesn't look as if '-t' is used for anything else. 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://libguestfs.org