[Bug 1582811] Re: update-grub produces broken grub.cfg with ZFS mirror volume

[HARI NARAYAN MAHTO]

install ubuntu. then run boot-repair in terminal to fix this via liveusb
then try to reboot system. i fixed this and now i'm able to boot into
ubuntu 20.04.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to grub2 in Ubuntu.
https://bugs.launchpad.net/bugs/1582811

Title:
  update-grub produces broken grub.cfg with ZFS mirror volume

Status in grub2 package in Ubuntu:
  Confirmed
Status in grub2 source package in Xenial:
  Confirmed
Status in grub2 source package in Bionic:
  Confirmed
Status in grub2 source package in Disco:
  Confirmed
Status in grub2 source package in Eoan:
  Confirmed
Status in grub2 source package in Focal:
  Confirmed

Bug description:
  When running update-grub on Xenial with an mirrored ZFS root, broken
  grub.cfg files are consistently produced due to the root= line being
  formatted with block devices and a newline inserted.

  Specifically I get a line like so:
  	linux	/ROOT/mint-13@/boot/vmlinuz-4.6.0-040600-generic root=/dev/sdj1
  /dev/sdi3 ro   nomdmonddf nomdmonisw

  The newline is what's included.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1582811/+subscriptions