> -----Original Message----- > From: virt-tools-list-bounces@xxxxxxxxxx > [mailto:virt-tools-list-bounces@xxxxxxxxxx] On Behalf Of Peng Yu > Sent: Thursday, March 13, 2014 12:39 PM > To: virt-tools-list@xxxxxxxxxx > Subject: Is the default of "format" raw? (virt-install) > > Hi, > > `man virt-install` says the following. But it is not clear to me what > format is used if it is not specified explicitly. Does anybody know? > Should this be documented? What version do you use? In upstream, I found this in virt-install man page: "If not specified when creating file images, this will default to 'qcow2'." And commit in git repository could be founded at: https://git.fedorahosted.org/cgit/virt-manager.git/commit/?id=21fb072d4ac08f 7f583f20a17897fa492ce8455e > > Also, how to check what the format is of an image file? Thanks. > You could try command "file" #file NAME qcow2: QEMU QCOW Image (v2), 1048576 bytes > format > Image format to be used if creating managed storage. For file > volumes, this can be 'raw', 'qcow2', 'vmdk', etc. See format > types in <http://libvirt.org/storage.html> for possible values. > This is often mapped to the driver_type value as well. > > With libvirt 0.8.3 and later, this option should be specified if > reusing an existing disk image, since libvirt does not autodetect > storage format as it is a potential security issue. For example, > if reusing an existing qcow2 image, you will want to specify > format=qcow2, otherwise the hypervisor may not be able to read > your disk image. > > -- > Regards, > Peng > > _______________________________________________ > virt-tools-list mailing list > virt-tools-list@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/virt-tools-list _______________________________________________ virt-tools-list mailing list virt-tools-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/virt-tools-list
