```
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.354 | DEBUG diskimage_builder.block_device.utils [-] exec_sudo: /dev/mapper/loop13p3 not set up by udev: Falling back to direct node creation. exec_sudo /home/parallel/dib-env/lib/python3.6/site-packages/diskimage_builder/block_device/utils.py:135
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.354 | DEBUG diskimage_builder.block_device.utils [-] exec_sudo: add map loop13p1 (253:41): 0 1048576 linear /dev/loop13 2048 exec_sudo /home/parallel/dib-env/lib/python3.6/site-packages/diskimage_builder/block_device/utils.py:135
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.354 | DEBUG diskimage_builder.block_device.utils [-] exec_sudo: add map loop13p2 (253:42): 0 4089036 linear /dev/loop13 1050624 exec_sudo /home/parallel/dib-env/lib/python3.6/site-packages/diskimage_builder/block_device/utils.py:135
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.354 | DEBUG diskimage_builder.block_device.utils [-] exec_sudo: add map loop13p3 (253:43): 0 36800512 linear /dev/loop13 5140480 exec_sudo /home/parallel/dib-env/lib/python3.6/site-packages/diskimage_builder/block_device/utils.py:135
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.364 | INFO diskimage_builder.block_device.utils [-] Calling [sudo dmsetup --noudevsync mknodes]
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.390 | DEBUG diskimage_builder.block_device.level2.mkfs [-] Creating fs command [['mkfs', '-t', 'ext4', '-L', 'mkfs_boot', '-U', 'b3c8b586-eff2-4fd2-9129-8ad510068e2e', '-q', '/dev/mapper/loop13p1']] create /home/parallel/dib-env/lib/python3.6/site-packages/diskimage_builder/block_device/level2/mkfs.py:132
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.390 | INFO diskimage_builder.block_device.utils [-] Calling [sudo mkfs -t ext4 -L mkfs_boot -U b3c8b586-eff2-4fd2-9129-8ad510068e2e -q /dev/mapper/loop13p1]
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.457 | INFO diskimage_builder.block_device.level1.partitioning [-] Not creating the partitions a second time.
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.458 | INFO diskimage_builder.block_device.level1.partitioning [-] Not creating the partitions a second time.
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.458 | DEBUG diskimage_builder.block_device.level1.lvm [-] Creating pv command [['pvcreate', '/dev/mapper/loop13p3', '--force']] _create /home/parallel/dib-env/lib/python3.6/site-packages/diskimage_builder/block_device/level1/lvm.py:95
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.458 | INFO diskimage_builder.block_device.utils [-] Calling [sudo pvcreate /dev/mapper/loop13p3 --force]
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.533 | DEBUG diskimage_builder.block_device.utils [-] exec_sudo: Physical volume "/dev/mapper/loop13p3" successfully created. exec_sudo /home/parallel/dib-env/lib/python3.6/site-packages/diskimage_builder/block_device/utils.py:135
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.547 | DEBUG diskimage_builder.block_device.level1.lvm [-] Creating vg command [['vgcreate', 'vg', '/dev/mapper/loop13p3', '--force']] _create /home/parallel/dib-env/lib/python3.6/site-packages/diskimage_builder/block_device/level1/lvm.py:146
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.547 | INFO diskimage_builder.block_device.utils [-] Calling [sudo vgcreate vg /dev/mapper/loop13p3 --force]
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.585 | DEBUG diskimage_builder.block_device.utils [-] exec_sudo: A volume group called vg already exists. exec_sudo /home/parallel/dib-env/lib/python3.6/site-packages/diskimage_builder/block_device/utils.py:135
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.610 | ERROR diskimage_builder.block_device.blockdevice [-] Create failed; rollback initiated
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.610 | Traceback (most recent call last):
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.610 | File "/home/parallel/dib-env/lib/python3.6/site-packages/diskimage_builder/block_device/blockdevice.py", line 416, in cmd_create
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.610 | node.create()
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.610 | File "/home/parallel/dib-env/lib/python3.6/site-packages/diskimage_builder/block_device/level1/lvm.py", line 278, in create
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.610 | vgs._create()
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.610 | File "/home/parallel/dib-env/lib/python3.6/site-packages/diskimage_builder/block_device/level1/lvm.py", line 147, in _create
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.610 | exec_sudo(cmd)
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.610 | File "/home/parallel/dib-env/lib/python3.6/site-packages/diskimage_builder/block_device/utils.py", line 143, in exec_sudo
[2020-10-05T04:21:45.006Z] 2020-10-05 04:19:39.610 | raise e
```
Please find above it looks like loopdevice was created and later the same we see it complains and fails. Any help on what we are missing here ?.
