[Bug 1025385] Re: Ubuntu installer doesn't offer option for btrfs subvolume

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: debian-installer (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1025385

Title:
  Ubuntu installer doesn't offer option for btrfs subvolume

Status in “debian-installer” package in Ubuntu:
  Confirmed

Bug description:
  The 'alternate' installer for Precise, even in expert mode, doesn't
  allow the selection of a subvolume ID when installing into a btrfs
  partition.

  I have a btrfs partition that already contains some data.  I wanted to
  install Ubuntu into it in a fresh subvolume.  I created the subvolume,
  so I now have a subvol called '@precise'.  I go into 'manual disk
  partitioning'.  It offers me the option to use a btrfs partition and
  not reformat it, but no choice of subvolume ID.  That means it will
  install all over the existing files.  The mount option would be
  subvol=@precise, but the installer doesn't allow me to add that or
  select from anything but a very limited set of mount options.

  More generally, perhaps there could be an option in the disk partition
  settings to add user-supplied textual mount options?

  I eventually installed manually via debootstrap, chroot and much fiddling, via these instructions:
  https://help.ubuntu.com/10.04/installation-guide/i386/linux-upgrade.html

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