update: resolve issues while provisioning noble oem machine using oem_autoinstall

[kevinyehk]

Description

• While trying to provision with oem_autoinstall, I found that the provisioning always failed at this line, after some investigation, the provision directory hasn't been created when using default user data, so just added one line for creating the directory before copy data.
• The default output of wget progress is using dot style, which will make the log hard to read, so I propose to use the bar style.

Resolved issues

• unable to provision:

2024-11-08 06:58:15,698 dell-xps139340-c34207 INFO: DEVICE CONNECTOR: No user-data provided, using default user-data file

• output is hard to read

Saving to: ‘/home/ubuntu/somerville-noble-oem-24.04a-20240729-53.iso’

     0K .......... .......... .......... .......... ..........  0%  104K 14h23m
    50K .......... .......... .......... .......... ..........  0%  484K 8h43m
   100K .......... .......... .......... .......... ..........  0%  268K 7h40m
   150K .......... .......... .......... .......... ..........  0%  565K 6h24m
   200K .......... .......... .......... .......... ..........  0%  492K 5h44m
   250K .......... .......... .......... .......... ..........  0% 1003K 5h1m
   300K .......... .......... .......... .......... ..........  0%  902K 4h32m
   350K .......... .......... .......... .......... ..........  0% 1014K 4h9m

Tests

Test with this TF job.
https://testflinger.canonical.com/jobs/1d67567a-0c62-4846-be87-a72e285f3714

[Artur-at-work]

+1, thanks for fixing

[pseudocc]

See inline comments.

BTW, it's glad to see atomic commits for a better git history, please split this commit into two and reword them if you agree with my point.

[kevinyehk]

@pseudocc Please have a review again, thanks.