From: Wim ten Have <wim.ten.h...@oracle.com> When tools like virt-install request to create a fully allocated filesystem object storage by setting the parameter sparse=no, libvirt doesn't allow that to happen for qcow2 formatted files.
Regardless of its XML instuction request libvirt always targets its filesystem object storage with preallocation=metadata if format=qcow2 is in effect. This results in sparse files which could cause problems since total image storage potentially can overrun actual filesystem available space. Changes from v1: * Fix XML target sparse setting and apply for qcow2. * Bring the test change under same PATCH. Wim ten Have (1): storage: extend preallocation flags support for qemu-img src/conf/storage_conf.c | 3 +++ src/storage/storage_util.c | 10 ++++++++-- .../qcow2-nocapacity-convert-prealloc.argv | 2 +- 3 files changed, 12 insertions(+), 3 deletions(-) -- 2.14.3 -- libvir-list mailing list email@example.com https://www.redhat.com/mailman/listinfo/libvir-list