[Bug 1921826] Re: jfs install in efi mode drops to grub if no separate /boot partition

[Ubuntu QA Website]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1921826

** Tags added: iso-testing

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https://bugs.launchpad.net/bugs/1921826

Title:
  jfs install in efi mode drops to grub if no separate /boot partition

Status in grub package in Ubuntu:
  New
Status in ubiquity package in Ubuntu:
  New

Bug description:
  Running Hirsute daily build.

  How to reproduce:
  1) Use EFI mode to boot iso image (tried hirsute daily build iso, but probably exists in previous releases as well)
  2) Choose 'Something else' option and proceed with manual partition method
  2) For partitioning, create two partitions, one as an EFI partition and rest as root partition with jfs file system. No separate /boot partition.
  3) Installation completes. Reboot the system.

  Expected: System boots normal.

  Actual: Boot fails and drops to grub prompt. Doing ls on jfs partition
  gives 'No known filesystem detected' error.

  Note: 
  1) Root on jfs install works fine for BIOS mode and also when a separate /boot partition is selected.
  2) Ubiquity does not warn that a separate /boot partition is required for jfs on efi system (like it does for encrypted installs).

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