Jeremy, is this the issue we discussed internally? If it is the reason was clearly visable in my compute logs when testing this :
libvirtError: Operation not supported: disk device type 'cdrom' cannot be detached
As a workaround you can however remove this volume offline with the following :
nova stop $instance ; nova volume-detach $instance $volume ; nova start $instance
Can you confirm so we can close this out as NOTABUG please?
Description of problem: launched an instance with the following command : [root@aio ~(admin)]# nova boot --flavor m1.small --image CentOS-6.6-gen --nic net-id=cd65ac88-f60a-4af9-8b17-62e18bb9127f --block-device id=3ab8f80f-d71d-4c23-bc69-8d2c5d04ce3b,source=volume,dest=volume,bus=ide,size=1,device=/dev/vdb,type=cdrom,bootindex=1 VM-cdrom The problem is that I cannot detach the volume ( was attached as cdrom ) neither via horizon nor via command line although there is no any error takes place . Version-Release number of selected component (if applicable): How reproducible: 100% Steps to Reproduce: 1. nova boot --flavor m1.small --image CentOS-6.6-gen --nic net-id=cd65ac88-f60a-4af9-8b17-62e18bb9127f --block-device id=3ab8f80f-d71d-4c23-bc69-8d2c5d04ce3b,source=volume,dest=volume,bus=ide,size=1,device=/dev/vdb,type=cdrom,bootindex=1 VM-cdrom 2. 3. Actual results: Expected results: Additional info: +--------------------------------------+----------------------------------------------------------+ | Property | Value | +--------------------------------------+----------------------------------------------------------+ | OS-DCF:diskConfig | MANUAL | | OS-EXT-AZ:availability_zone | nova | | OS-EXT-SRV-ATTR:host | aio.il.nds.com | | OS-EXT-SRV-ATTR:hypervisor_hostname | aio.il.nds.com | | OS-EXT-SRV-ATTR:instance_name | instance-0000003a | | OS-EXT-STS:power_state | 1 | | OS-EXT-STS:task_state | - | | OS-EXT-STS:vm_state | active | | OS-SRV-USG:launched_at | 2015-12-07T10:58:04.000000 | | OS-SRV-USG:terminated_at | - | | accessIPv4 | | | accessIPv6 | | | config_drive | | | created | 2015-12-07T10:57:46Z | | flavor | m1.small (2) | | hostId | 6dcb1da890207286323df31d72bb175d52e18515087f6b9d28ad5677 | | id | 88c5caa5-01b8-410b-8d27-457eb599d177 | | image | CentOS-6.6-gen (9be95525-b001-4e46-a56c-e23c9b0eaca4) | | key_name | - | | metadata | {} | | name | VM-cdrom | | os-extended-volumes:volumes_attached | [{"id": "3ab8f80f-d71d-4c23-bc69-8d2c5d04ce3b"}] | | priv1 network | 192.168.0.63 | | progress | 0 | | security_groups | default | | status | ACTIVE | | tenant_id | 0975965442d044979ecc43e063768039 | | updated | 2015-12-07T10:58:04Z | | user_id | 95ad21f4c29b475ab5c64270cf3fde94 | +--------------------------------------+----------------------------------------------------------+ +--------------------------------------+--------+--------------+------+---------------+----------+--------------------------------------+ | ID | Status | Display Name | Size | Volume Type | Bootable | Attached to | +--------------------------------------+--------+--------------+------+---------------+----------+--------------------------------------+ | 3ab8f80f-d71d-4c23-bc69-8d2c5d04ce3b | in-use | empty-vol | 20 | disk_cdrom | false | 88c5caa5-01b8-410b-8d27-457eb599d177 | +--------------------------------------+--------+--------------+------+---------------+----------+--------------------------------------+ +---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | Property | Value | +---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | attachments | [{u'device': u'/dev/vdb', u'server_id': u'88c5caa5-01b8-410b-8d27-457eb599d177', u'id': u'3ab8f80f-d71d-4c23-bc69-8d2c5d04ce3b', u'host_name': None, u'volume_id': u'3ab8f80f-d71d-4c23-bc69-8d2c5d04ce3b'}] | | availability_zone | nova | | bootable | false | | created_at | 2015-10-11T10:45:11.000000 | | display_description | | | display_name | empty-vol | | encrypted | False | | id | 3ab8f80f-d71d-4c23-bc69-8d2c5d04ce3b | | metadata | {u'readonly': u'False', u'attached_mode': u'rw'} | | os-vol-host-attr:host | aio.il.nds.com@lvm#lvm | | os-vol-mig-status-attr:migstat | None | | os-vol-mig-status-attr:name_id | None | | os-vol-tenant-attr:tenant_id | 0975965442d044979ecc43e063768039 | | os-volume-replication:driver_data | None | | os-volume-replication:extended_status | None | | size | 20 | | snapshot_id | None | | source_volid | None | | status | in-use | | volume_type | disk_cdrom |