[master 2/4] livemedia-creator: Use discard during installation

[dashea]

From: Fabian Deutsch

This could help to keep the disk size down during installation,
if the FS within the VM is also supporting TRIM.

Signed-off-by: Fabian Deutsch 
---
 src/sbin/livemedia-creator | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sbin/livemedia-creator b/src/sbin/livemedia-creator
index 59add02..aa8774f 100755
--- a/src/sbin/livemedia-creator
+++ b/src/sbin/livemedia-creator
@@ -141,7 +141,7 @@ class VirtualInstall(object):
             args.append(ks)

disk_opts = "path={0}".format(disk_img)
-        disk_opts += ",cache=unsafe"
+        disk_opts += ",cache=unsafe,discard=unmap"
         if qcow2:
             disk_opts += ",format=qcow2"
         else: