[Bug 1721633] Re: os-prober needs a check for subvolumes on btrfs formatted root partitions

[bcowan]

** Description changed:

  os-prober will not find other ubuntu installs when their root partitons
- are created by ubiquity.  Ubuntu creates subvolumes with the @ for root
- and @home.  os-prober needs to check inside the @ subvolume or there
- needs to be a symlink to @/boot @/etc which is hackish/not sane
+ are Btrfs and created by ubiquity.  Ubuntu creates subvolumes with the @
+ for root and @home.  os-prober needs to check inside the @ subvolume or
+ there needs to be a symlink to @/boot @/etc which is hackish/not sane
  otherwise the other already installed ubuntu versions get overwritten or
  not seen in the grub menu.

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https://bugs.launchpad.net/bugs/1721633

Title:
  os-prober needs a check for subvolumes on btrfs formatted root
  partitions

Status in grub2 package in Ubuntu:
  New

Bug description:
  os-prober will not find other ubuntu installs when their root
  partitons are Btrfs and created by ubiquity.  Ubuntu creates
  subvolumes with the @ for root and @home.  os-prober needs to check
  inside the @ subvolume or there needs to be a symlink to @/boot @/etc
  which is hackish/not sane otherwise the other already installed ubuntu
  versions get overwritten or not seen in the grub menu.

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