I've now spent hours trying and failing to figure out how to install Ubuntu Desktop 13.04 on my new desktop while setting up RAID as part of the installation.
I tried following the following two tutorials:
Each time the installation ends with a pop-up error saying something about "'grub-install dummy' failed".
It's a PC with a pair of 120gb SSDs. It would be cool to have /boot on the mirror, but not essential. I've tried both that, and having a separate unmirrored /boot partition with the rest of the disk space dedicated to a mirrored root (/) partition (the two tutorials cover both approaches between them).
PS-It's annoying that this isn't yet a simple checkbox option during install, the way home dir encryption became a few years ago. Also, the awesome Alternate distro is no longer available for recent releases.
PPS-I've seen some people say to use 13.04 Server or 12.04 Alternate installer, then upgrade to 13.04 and install a desktop manually (if starting with Server). Is that a straightforward and safe way to end up with the equivalent of having installed Desktop 13.04 in the first place?