[Libguestfs] IRC question: can virt-sparsify output to stdout instead of a file?

Richard W.M. Jones rjones at redhat.com
Tue Dec 22 08:32:53 UTC 2015


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




More information about the Libguestfs mailing list