Comment 20 for bug 1820604

I am having a same issue as reported by Jake and Jim. Trying to install on Lanner hardware using USB stick with "ubuntu-18.04.2-live-server-amd64.iso" image. I used serial console output by enabling console=ttyS0,115200n8 in Grub config. The installer fails once install attempts to format a hard drive. I get the following error:

 Full installer output ───────────────────────────┐
│Traceback (most recent call last): │
│ File "/snap/subiquity/664/usr/lib/python3.6/runpy.py", line 193, in │
│_run_module_as_main │
│ "__main__", mod_spec) │
│ File "/snap/subiquity/664/usr/lib/python3.6/runpy.py", line 85, in _run_code│
│ exec(code, run_globals) │
│ File "/snap/subiquity/664/lib/python3.6/site-packages/curtin/__main__.py", │
│line 4, in <module> │
│ sys.exit(main()) │
│ File │
│"/snap/subiquity/664/lib/python3.6/site-packages/curtin/commands/main.py", │
│line 177, in main │
│ raise OSError("Unable to find helpers or 'curtin' exe to add to path") │
│OSError: Unable to find helpers or 'curtin' exe to add to path │
│