[Bug 1080901] Re: installer crashed. tried installing on an existing, but empty, btrfs

[Rolf Rander Næss]

it seems mapdevfs (or grub-installer, depending on your point of view, i
guess) can't handle filesystems spanned across several devices. (I also
can't figure what mapdevfs is supposed to do, in my tests, it just
returns its own input)

Workaround was to set up btrfs on one disk and add the second after
install, followed by a btrfs fs balance.

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https://bugs.launchpad.net/bugs/1080901

Title:
  installer crashed. tried installing on an existing, but empty, btrfs

Status in “grub-installer” package in Ubuntu:
  New

Bug description:
  setup:
   - two ssd (Corsair CSSD-F120GB2)
   - each have two partitions: 100M for efi (on hda) and boot (on hdb) and the rest as two parts of btrfs
   - partitioned with gparted and created btrfs before starting installation
   - installer crashed

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: ubiquity 2.12.16
  ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
  Uname: Linux 3.5.0-17-generic x86_64
  ApportVersion: 2.6.1-0ubuntu3
  Architecture: amd64
  CasperVersion: 1.328
  Date: Mon Nov 19 23:57:36 2012
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi.signed file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash --
  LiveMediaBuild: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  ProcEnviron:
   TERM=unknown
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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