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I've got an Ubuntu 9.04 server running two VM's. In /etc/libvirt/qemu/machine1.xml
two disk devices are defined like this:
<devices>
<emulator>/usr/bin/kvm</emulator>
<disk type='file' device='disk'>
<source file='/vserver/machine1/disk0.qcow2'/>
<target dev='hda' bus='ide'/>
</disk>
<disk type='file' device='disk'>
<source file='/vserver/machine1/disk1.qcow2'/>
<target dev='hdb' bus='ide'/>
</disk>
I need more storage space in at least one of the devices and thought about adding a third hdc
device by simply adding one with same style as above and re-organising my mount structure (The virtual sizes of the current qcow2 files are unfortunately limited.)
My problem is that reloading libvirtd and restarting the VM do not result in a new visible device (checked with fdisk).
I'm aware of extending an existing qcow2 file (converting to raw format, cat-ing/adding the new one, using smth. like gparted) - but only as a last resort.
Hopefully it's something very simple I'm missing?