01:19 < bananapie> without using a named pipe, can virt-sparsify output to stdout instead of a file? 01:20 < bananapie> called from a bash script* 01:43 < bananapie> if I use a named pipe, it says 'Could not refresh total sector count: Operation not permitted' 02:33 < bananapie> ok. I found the answer, virt-sparsify doesn't read linearly, so named pipes doesn't work :( No. However, for copying mode (not --inplace), the longer answer is it could be modified to make it work: https://rwmj.wordpress.com/2014/10/14/streaming-nbd-server/#content Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com Fedora Windows cross-compiler. Compile Windows programs, test, and build Windows installers. Over 100 libraries supported. http://fedoraproject.org/wiki/MinGW