[Bug 1858966] Re: Ubiquity/zfs/zsys creates MBR table when LiveCD legacy/bios booted

Fri Jan 10 08:25:10 UTC 2020

*** This bug is a duplicate of bug 1856863 ***
    https://bugs.launchpad.net/bugs/1856863

Thank you for your report.

This has been reported in bug 1856863. partman_auto creates a GPT when the disk is bigger than 2TB but I'll verify it also creates a bios_grub partition on legacy systems.
I'm marking this bug as duplicate.

** This bug has been marked a duplicate of bug 1856863
   Ubiquity crashes when partitioning the disk with ZFS installation

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https://bugs.launchpad.net/bugs/1858966

Title:
  Ubiquity/zfs/zsys creates MBR table when LiveCD legacy/bios booted

Status in ubiquity package in Ubuntu:
  New
Status in zfs-linux package in Ubuntu:
  New

Bug description:
  Conventionally, ZFS is contained within GPT partitions.  While setting
  up zfs using ubiquity, legacy/bios booted system use MBR partition
  tables.  This is especially problematic since MBR partitions are
  restricted to 2TB.

  GPT disks must contain a "Bios_Grub" partition in order to be bootable
  from Bios/Legacy systems.  This partition can be created using the
  command "sgdisk -a1 -n1:256K:+768K -t1:EF02 <disk>", where all the 1's
  in that command specify an available partition number.

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