这时候nova数据库需要重新生成 :
mysql -u root -p
drop database nova;
CREATE DATABASE nova;
RANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' \
IDENTIFIED BY 'NOVA_DBPASS';
GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' \
IDENTIFIED BY 'NOVA_DBPASS';
然后按照论坛里步骤重新导入数据即可
su -s /bin/sh -c "nova-manage db sync" nova