Kubuntu installer should offer btrfs RAID options when presented with two identical mount points

[Chris Samuel]

When I was trying to install Kubuntu on my test system I thought I'd try and see if it would let me configure a RAID-1 btrfs as the root filesystem from the installer.

So I configured two btrfs filesystems on different devices and set them both with the same mount point ( / ) hoping that it would consider that as a clue that I wanted it as RAID (and hopefully RAID-1).

But instead it rejected the option, saying I had to choose a different mount point name for the second.

It would be *really* nice if the installer could spot you picking the same mount point for multiple btrfs partitions on different devices and offer to built the filesystem as btrfs RAID-1 (or RAID-0 if you really don't like your data).

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubiquity 2.17.3
ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4
Uname: Linux 3.12.0-7-generic x86_64
ApportVersion: 2.12.7-0ubuntu3
Architecture: amd64
CasperVersion: 1.336ubuntu1
CurrentDesktop: KDE
Date: Sun Jan 5 23:02:33 2014
InstallCmdLine: file=/cdrom/preseed/kubuntu.seed boot=casper maybe-ubiquity initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
LiveMediaBuild: Kubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140105)
MarkForUpload: True
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)