Comment 12 for bug 2048399

That's odd. Could you please run the following queries in you database?

SELECT maasserver_node.boot_disk_id,
       maasserver_physicalblockdevice.blockdevice_ptr_id
FROM maasserver_node
FULL OUTER JOIN maasserver_physicalblockdevice
  ON maasserver_physicalblockdevice.blockdevice_ptr_id = maasserver_node.boot_disk_id
WHERE maasserver_node.system_id = 'kksmtf';

SELECT maasserver_node.boot_disk_id,
       maasserver_blockdevice.id,
       maasserver_blockdevice.name
FROM maasserver_node
FULL OUTER JOIN maasserver_blockdevice
  ON maasserver_blockdevice.id = maasserver_node.boot_disk_id
WHERE maasserver_node.system_id = 'kksmtf';