Comment 0 for bug 1708647

While creating a vm through horizon getting an error "Error: Build of instance 2dec7bc3-0038-4ac0-8aa9-660b7986ab53 aborted: Block Device Mapping is Invalid"

This issue is seen when VMs are getting created only through horizon.

VMs are getting created without any issues if we use cli.

BUILD -> 4.0-27 newton build on a single node setup.

vm-test is created through horizon.

root@nodek12:~# nova list
+--------------------------------------+---------+--------+------------+-------------+------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+---------+--------+------------+-------------+------------------+
| ab3278c3-c16a-4958-a377-0f5a62308f6c | host1 | ACTIVE | - | Running | test_vn=10.1.1.4 |
| aad17e67-48d0-422e-a4f7-23758eacea04 | vm-test | ERROR | - | NOSTATE | |
| 14e89aa9-accf-4f6f-8f2a-5a43e76272f9 | vm_cli | ACTIVE | - | Running | test_vn=10.1.1.3 |
+--------------------------------------+---------+--------+------------+-------------+------------------+