LVM activate volumes at boot

[Roger Pau Monné <roger.pau%entel.upc.edu@localhost>]

Hello,

I'm using LVM together with Xen, and I would like to activate LVM
volumes at Dom0 boot, so I can boot the DomUs from LVM with
xendomains. The problem is that I have to execute "lvm vgchange -a y"
at boot every time to activate the volumes. Isn't there anyway to
auto-activate the volumes before starting xen domains?

Thanks, Roger.