Comment 19 for bug 1820604

I also receive the same "Unable to find helpers or 'curtin' exe to add to path" error as Jim K reported in https://bugs.launchpad.net/curtin/+bug/1820604/comments/18, after defining a partition layout in the installer. I am installing on a Lanner FW-8758 using a Rufus-generated USB stick and have tried both "ubuntu-18.04.2-live-server-amd64.iso" and "ubuntu-18.04.2-server-amd64.iso".

I activated the serial console output using similar instructions to https://github.com/ynkjm/ubuntu-serial-install - mainly adding "console=tty0 console=ttyS0,115200n8" where necessary.

Unfortunately dropping to shell after the failure occurs won't let me log in to investigate further, or at least I don't know the appropriate credentials (root and ubuntu users with a blank password, or the same username/password result in an authentication failure.)

When installing using VGA mode and without the grub parameters, this error didn't occur on the same hardware and without having adjusted the partitions on the SSD.

It'd be great to get an updated install ISO, or at least a workaround that I could use to pre-prepare a USB stick in case I have to drop back to using the console port.