On 01/10/17 11:25, Duncan Brown wrote: > > No joy after adding the kernel option, exactly the same issue > > It might require a vgexport then vgimport to fix. vgimport man page: DESCRIPTION vgimport allows you to make a Volume Group that was previously exported using vgexport(8) known to the system again, perhaps after moving its Physical Volumes from a different machine. vgexport clears the VG sys‐ tem ID, and vgimport sets the VG system ID to match the host running vgimport (if the host has a system ID).