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@gmail.comwrote:
anyone may help on that topic ? thanks
2011/7/20 thomas veymont thomas.veymont@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/Virtualiza...
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/Virtualiza...
- 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
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