I put this off for awhile and now I'm back at it. I find it extremely disheartening that every set of instructions I find anywhere fails. They all fail and this is such a simple problem. I just want to install Ubuntu 10.10 with RAID 1 on a pair of identical 2.0 TB disks. I have done it maybe 20 times and it has never once been able to boot. I was hoping to be able to use these instructions from B-o-B... On Tue, 12 Jul 2011, Mr. B-o-B wrote: > Try to do the raid prep/setup outside of the Ubuntu installer first. > > This is how I setup software RAID 1's, and this has worked every time > for me. I have to be honest I haven't done this on Ubuntu, but I did > just load the latest Ubuntu live cd to check, and all the commands exist > so this should work fine. I have done this >30 times on Slackware, and > a handful of times on Centos & Fedora. I actually used a Slackware > install disk to setup the raid's on Fedora & Centos, but this is not > necessary. The Ubuntu disk will work just fine. > > I personally like fdisk to create my partitions, but can use cfdisk (or > anything else Ubuntu might have that you like). One disk 1 (lets call > it /dev/sda) Create at least two partitions (one for swap & one for /). > Change the types on both partitions to "Linux RAID autodetect" type > "FD". I couldn't get through even that part. The first problem is that fdisk says that I have a GUID partition and I should use GNU parted. In gparted I can delete partitions but not so much that fdisk doesn't complain about the GUID partitioning. So I need to know what I am supposed to be doing with fdisk here. Do I really want an msdos partition? How is this done? Unfortunately, the detailed B-o-B instructions didn't help me (though I am dying to try them) because I couldn't get past this initial step. Every other set of instructions I've found on the web fails at some point. With at least one of them I get all the way through, it seems like it has worked, but then I try to start the machine and it won't boot. Next I look for ways to fix that and I haven't been able to fix it. So I delete everything and start over. After working on this for dozens of hours I am ready to pay someone to do it for me. Can any of you do this? How much do you want? Mike