Hi list, on older virt-manager versions (ie: what shipped with RHEL 6), a checkbox called "allocate entire disk" was selectable when configuring a new virtual machine. When checked, it means that the RAW disk image file was entirely allocated, generally issuing a fallocate() call. When unchecked, the disk image was a sparse file, with on-demand space allocation. On new virt-manager versions (ie: what ships with RHEL 7), the checkbox is gone. This means that for creating a sparse allocated file from within the "new vm" wizard, one is forced to use a Qcow2 file (selectable in the global preferences). No sparse RAM images can be created within such wizard. As a heavy consumer of RAW disk files, I would really like to have the checkbox back, especially in RHEL/CentOS 7.x Do you plan to reintroduce it? For RHEL/CentOS, should I open a Bugzilla ticket? Thanks. -- Danti Gionatan Supporto Tecnico Assyoma S.r.l. - www.assyoma.it email: g.danti@assyoma.it - info@assyoma.it GPG public key ID: FF5F32A8