Try using this script as a guide to suite your needs... Look at attachment... Feel free to ask if something goes wrong...

redhatdude(a)bellsouth.net writes: fdisk /dev/<devicename> Make sure the <devicename> is correct, otherwise you're going to nuke an innocent hard drive. That's really the only tricky part, the rest is generally foolproof. fdisk will probably complain that the existing partition table on the drive is garbage, and tell you to create a new one. Follow along with it. If someone snookered you and shove you a bunch of refurbished drives, they'll have some data and existing partitions on it, which you can delete first, using fdisk. fdisk is a simple, command line tool, with a basic menu, and simple command help. You should be able to figure out how to use it to create a new partition on the disk. The only thing that you may not be able to figure out on your own is that, for the purpose of what you need to do, you will need to set your new partition's type to "Linux raid autodetect", type 0xFD. Once you've partitioned both drives, use mdadm to assemble them into a RAID volume. You'll end up with a new device, most likely /dev/md0. Treat it as a single partition, and use mkfs.ext3 command to format it as an ordinary ext3 partition, which you'll be able to mount.

On Fri, 2008-06-27 at 19:44 +0000, redhatdude(a)bellsouth.net wrote: Of course... you only have to mount those disks on some directory in order to use it. Just think of it as additional disks, as if you would plugged in USB disk or USB stick. Raid configuration of those disks are part of fedora installation/configuration the moment you mount it, and you can see if RAID is working either through `cat /proc/mdstat` or through `mdadm --misc --detail /dev/md?`. You can mount it through /etc/fstab, or manually each time computer starts.

On Fri, Jun 27, 2008 at 17:35:10 +0000, redhatdude(a)bellsouth.net wrote: If you are going to be doing this as a fresh install, you get choose to set up a custom layout during the install process. If you do that you first create the partitions you want and then you create raid arrays matching up the various partitions. You probably want the exact same partition layout on both disks. If you like LVM use about 100 MB for a partition at the beginning of both drives that will be used for /boot and the remainder of each disk for a partition that will be used for LVM.

On Fri, Jun 27, 2008 at 12:35 PM, <redhatdude(a)bellsouth.net&gt; wrote: Have you considered doing a fresh install and using the GUI partition create to create the RAID? It isn't suepr intuitive, but I was able to figure it out. 1. Make a /boot partition on the primary drive 2. Use the remaining space on that drive as a raid partion 3. Make a raid partition of equal size on the secondary drive 4. Make a raid array 5. Create your ext3 partitions on the new virtual drive Not the exact steps, just what I remember, I don't have the UI infront me right now, sorry -- Fedora 7 : sipping some of that moonshine ( www.pembo13.com )

On Fri, 2008-06-27 at 17:35 +0000, redhatdude(a)bellsouth.net wrote: Example: fdisk /dev/sda here you can create partitions for the first disk, assuming that your first disk is sda. For all partitions, except for the swap type, choose raid autodetect type (fd). fdisk /dev/sdb do the same thing as for /dev/sda then do this: mdadm --create /dev/md0 -l 1 -n 2 /dev/sda1 /dev/sdb1 mdadm --create /dev/md1 -l 1 -n 2 /dev/sda2 /dev/sdb2 and so on, for all partitions that are raid autodetect type. After creating md devices, you must format them: mkfs.ext3 -L /some_label /dev/md0 and so on, for all of md devices you created. Don't forget to mkswap all swap partitions. Use this as your guide: man mount man fdisk man mdadm (or mdadm --help)