[Bug 1770173] Re: 18.04 install stuck on grub install

[Phillip Susi]

Strange, yes, a USB stick should not cause it to hang.  I'm still not
seeing the output of os-prober with the set -x option working.  Also you
were able to manually run it with this zfs usb stick plugged in and it
did not hang right?

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Title:
  18.04 install stuck on grub install

Status in os-prober package in Ubuntu:
  Incomplete

Bug description:
  Installation freezes on grub install at 66%. syslog shows grub-install
  ran successfully, then seems to have actually gotten stuck in the next
  step (osprober). Photo attached, sorry for the terrible quality from
  HTC.

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