Comment 5 for bug 1775424

Hello,

I'm facing this same error with MaaS 2.3.5 to deploy CentOS 6, any other OS works fine.

The node has 1x NVMe 1 TB + 2x SSD 500 GB, I'm trying this config:
Name |Model | Serial|BootDevice typeUsed forHealth
nvme0n1 |Physical | MBR |partitioned with 1 partition Ok
nvme0n1-part1 |Partition| ext4 |formatted filesystem mounted at /

Error:
Traceback (most recent call last):
  File "/tmp/tmph5qpnwg3/target/curtin/curtin-hooks.py", line 393, in <module>
    main()
  File "/tmp/tmph5qpnwg3/target/curtin/curtin-hooks.py", line 376, in main
    grub_root = get_grub_root(target)
  File "/tmp/tmph5qpnwg3/target/curtin/curtin-hooks.py", line 208, in get_grub_root
    return regex.groups()[0]
AttributeError: 'NoneType' object has no attribute 'groups'
Unexpected error while running command.
Command: ['/tmp/tmph5qpnwg3/target/curtin/curtin-hooks']
-

If I ran "maas myadmin machine get-curtin-config" there is no custom storage config.

Does someone know it is known bug?