I'm not aware of a virsh attach disk command but if you duplicate the entries for the existing disk you can then add the new one...something like this... # virsh -c qemu:///system edit VMname <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source file='/var/lib/libvirt/images/vmname_var.qcow2'/> <target dev='vda' bus='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </disk> You will have to adjust the values of course. Why not try doing this with virt-manager? When I started using KVM (after moving from ESXi) I had trouble with all the commands and finding everything I needed, but virt-manager works great. - Trey On Tue, Jul 26, 2011 at 4:26 AM, thomas veymont <thomas.veymont at gmail.com>wrote: > anyone may help on that topic ? > thanks > > 2011/7/20 thomas veymont <thomas.veymont at gmail.com>: > > hi there, > > > > I'm following these documentations to add a file-based disk volume to > > a KVM guest under Centos 6.0 : > > > http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization/chap-Virtualization-Storage_Volumes.html > > > > as instructed, I created a "pool" then a "volume", file-based, e.g : > > > > mkdir /mnt/raid/kvm_pool1 > > virsh # pool-define-as pool1 dir - - - - "/mnt/raid/kvm_pool1" > > virsh # pool-autostart pool1 > > virsh # vol-create-as pool1 volume1 20G --allocation 15G --format qcow2 > > > > now I want to associate "volume1" to my guest OS. Following this doc: > > > > > http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization/sect-Virtualization-Virtualized_block_devices-Adding_storage_devices_to_guests.html > > > > - why does this ask me to create a file with "dd" ? it's already been > > created before with the virsh pool commands, isn't it? Seems to > > me I'm bypassing the libvirt/virsh layer if I do that. > > > > - after that, the doc tells me to do some stuff with guest XML files. > > Is'nt there some specific commands provided by > > virsh to associate a managed Pool to a managed Guest ? > > > > - in this case, should I use the virsh "attach-disk" command ? > > > > thanks. > > -- > > Tom > > > _______________________________________________ > CentOS-virt mailing list > CentOS-virt at centos.org > http://lists.centos.org/mailman/listinfo/centos-virt > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos-virt/attachments/20110726/862fe547/attachment-0006.html>