You may have to repeat steps 7-9 multiple times for the error to occur. root@all-in-one:~# nova stop cirros root@all-in-one:~# nova list +--------------------------------------+--------+---------+------------+-------------+---------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+--------+---------+------------+-------------+---------------------------+ | 7032e837-9dc8-45e0-9f75-430186833da7 | CIRROS | SHUTOFF | - | Shutdown | Private_Net10=10.10.10.19 | +--------------------------------------+--------+---------+------------+-------------+---------------------------+ root@all-in-one:~# nova resize cirros 2 --poll Server resizing... 100% complete Finished root@all-in-one:~# nova list +--------------------------------------+--------+---------------+------------+-------------+---------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+--------+---------------+------------+-------------+---------------------------+ | 7032e837-9dc8-45e0-9f75-430186833da7 | CIRROS | VERIFY_RESIZE | - | Shutdown | Private_Net10=10.10.10.19 | +--------------------------------------+--------+---------------+------------+-------------+---------------------------+ root@all-in-one:~# nova resize-revert cirros root@all-in-one:~# nova list +--------------------------------------+--------+---------+------------+-------------+---------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+--------+---------+------------+-------------+---------------------------+ | 7032e837-9dc8-45e0-9f75-430186833da7 | CIRROS | SHUTOFF | - | Shutdown | Private_Net10=10.10.10.19 | +--------------------------------------+--------+---------+------------+-------------+---------------------------+ root@all-in-one:~# nova resize cirros 2 --poll Server resizing... 100% complete Finished root@all-in-one:~# nova list +--------------------------------------+--------+---------------+------------+-------------+---------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+--------+---------------+------------+-------------+---------------------------+ | 7032e837-9dc8-45e0-9f75-430186833da7 | CIRROS | VERIFY_RESIZE | - | Shutdown | Private_Net10=10.10.10.19 | +--------------------------------------+--------+---------------+------------+-------------+---------------------------+ root@all-in-one:~# nova resize-revert cirros root@all-in-one:~# nova list +--------------------------------------+--------+---------------+------------------+-------------+---------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+--------+---------------+------------------+-------------+---------------------------+ | 7032e837-9dc8-45e0-9f75-430186833da7 | CIRROS | REVERT_RESIZE | resize_reverting | Shutdown | Private_Net10=10.10.10.19 | +--------------------------------------+--------+---------------+------------------+-------------+---------------------------+ root@all-in-one:~# nova list +--------------------------------------+--------+---------+------------+-------------+---------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+--------+---------+------------+-------------+---------------------------+ | 7032e837-9dc8-45e0-9f75-430186833da7 | CIRROS | SHUTOFF | - | Shutdown | Private_Net10=10.10.10.19 | +--------------------------------------+--------+---------+------------+-------------+---------------------------+ root@all-in-one:~# root@all-in-one:~# root@all-in-one:~# nova resize cirros 2 --poll Server resizing... 100% complete Finished root@all-in-one:~# nova list +--------------------------------------+--------+---------------+------------+-------------+---------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+--------+---------------+------------+-------------+---------------------------+ | 7032e837-9dc8-45e0-9f75-430186833da7 | CIRROS | VERIFY_RESIZE | - | Shutdown | Private_Net10=10.10.10.19 | +--------------------------------------+--------+---------------+------------+-------------+---------------------------+ root@all-in-one:~# nova resize-revert cirros root@all-in-one:~# nova list +--------------------------------------+--------+---------+------------+-------------+---------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+--------+---------+------------+-------------+---------------------------+ | 7032e837-9dc8-45e0-9f75-430186833da7 | CIRROS | SHUTOFF | - | Shutdown | Private_Net10=10.10.10.19 | +--------------------------------------+--------+---------+------------+-------------+---------------------------+ root@all-in-one:~# root@all-in-one:~# nova resize cirros 2 --poll Server resizing... 100% complete Finished root@all-in-one:~# nova list +--------------------------------------+--------+---------------+------------+-------------+---------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+--------+---------------+------------+-------------+---------------------------+ | 7032e837-9dc8-45e0-9f75-430186833da7 | CIRROS | VERIFY_RESIZE | - | Shutdown | Private_Net10=10.10.10.19 | +--------------------------------------+--------+---------------+------------+-------------+---------------------------+ root@all-in-one:~# nova resize-revert cirros root@all-in-one:~# nova list +--------------------------------------+--------+---------+------------+-------------+---------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+--------+---------+------------+-------------+---------------------------+ | 7032e837-9dc8-45e0-9f75-430186833da7 | CIRROS | SHUTOFF | - | Shutdown | Private_Net10=10.10.10.19 | +--------------------------------------+--------+---------+------------+-------------+---------------------------+ root@all-in-one:~# root@all-in-one:~# root@all-in-one:~# nova resize cirros 2 --poll Server resizing... 100% complete Finished root@all-in-one:~# nova list +--------------------------------------+--------+---------------+------------+-------------+---------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+--------+---------------+------------+-------------+---------------------------+ | 7032e837-9dc8-45e0-9f75-430186833da7 | CIRROS | VERIFY_RESIZE | - | Shutdown | Private_Net10=10.10.10.19 | +--------------------------------------+--------+---------------+------------+-------------+---------------------------+ root@all-in-one:~# nova resize-revert cirros root@all-in-one:~# nova list +--------------------------------------+--------+---------------+------------------+-------------+---------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+--------+---------------+------------------+-------------+---------------------------+ | 7032e837-9dc8-45e0-9f75-430186833da7 | CIRROS | REVERT_RESIZE | resize_reverting | Shutdown | Private_Net10=10.10.10.19 | +--------------------------------------+--------+---------------+------------------+-------------+---------------------------+ root@all-in-one:~# nova list +--------------------------------------+--------+---------+------------+-------------+---------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+--------+---------+------------+-------------+---------------------------+ | 7032e837-9dc8-45e0-9f75-430186833da7 | CIRROS | SHUTOFF | - | Shutdown | Private_Net10=10.10.10.19 | +--------------------------------------+--------+---------+------------+-------------+---------------------------+ root@all-in-one:~# nova resize cirros 2 --poll Server resizing... 100% complete Finished root@all-in-one:~# nova list +--------------------------------------+--------+---------------+------------+-------------+---------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+--------+---------------+------------+-------------+---------------------------+ | 7032e837-9dc8-45e0-9f75-430186833da7 | CIRROS | VERIFY_RESIZE | - | Shutdown | Private_Net10=10.10.10.19 | +--------------------------------------+--------+---------------+------------+-------------+---------------------------+ root@all-in-one:~# nova resize-revert cirros root@all-in-one:~# nova list +--------------------------------------+--------+--------+------------+-------------+---------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+--------+--------+------------+-------------+---------------------------+ | 7032e837-9dc8-45e0-9f75-430186833da7 | CIRROS | ERROR | - | Shutdown | Private_Net10=10.10.10.19 | +--------------------------------------+--------+--------+------------+-------------+---------------------------+