I tried again to get a Raring install on btrfs (yesterday's daily) Same result even though I choose to continue without installing a bootloader. I get an installer crashed message at the end and sudo update-grub from another Ubuntu does not detect an OS in the partition.
Is this because the format is btrfs? Or is it a problem with this particular daily? Will this happen on Ext4?
Update: This daily image installs without any problems when the file system is Ext4, including installing Grub into the MBR. I have just done it. So, it is an issue between Grub and the btrfs file system.