pkg install os-xen
xenstore-read: couldn't read path /local/domain/66/unique-domain-idxenstore: could not write path attr/eth0/ipxenstore: could not write path attr/eth1/ipxenstore: could not write path control/feature-balloonxenstore: could not write path attr/PVAddons/MajorVersionxenstore: could not write path attr/PVAddons/MinorVersionxenstore: could not write path attr/PVAddons/MicroVersionxenstore: could not write path attr/PVAddons/BuildVersionxenstore: could not write path attr/PVAddons/Installed
xenstore-read: couldn't read path /local/domain/70/unique-domain-idxenstore: could not write path attr/eth0/ipxenstore: could not write path attr/eth1/ipxenstore: could not write path attr/eth3/ipxenstore: could not write path control/feature-balloonxenstore: could not write path attr/PVAddons/MajorVersionxenstore: could not write path attr/PVAddons/MinorVersionxenstore: could not write path attr/PVAddons/MicroVersionxenstore: could not write path attr/PVAddons/BuildVersionxenstore: could not write path attr/PVAddons/Installed
root@OPNsense:~ # xenstore-rm backend/vbd/70
xenstore-rm: could not remove path backend/vbd/70