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2014 Jan 04
0
IRC question: virt-builder & size of qcow2 output files
...uge, but *sparse* file:
$ ls -lh box.img
-rw-r--r--. 1 rjones rjones 41G Jan 4 12:56 box.img
$ du -sh box.img
6.4M box.img
Note that the output file from virt-builder is also sparse:
$ ls -lh box.img
-rw-r--r--. 1 rjones rjones 41G Jan 4 12:55 box.img
$ du -sh box.img
935M box.img
so I don't think this counts as a bug, but I'm surprised that qemu-img
+ -o preallocation=metadata causes such an (apparently) huge file to
be created. It's not taking up as much disk space as it appears to.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http:/...