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In order to perform this install you will need the Alternate ISO image and have to use the text based installer. Updates are here to support an intial install to a new RAID and onto an existing RAID.

For a New Installation

See below for an existing RAID install - Process is pretty similiar. (Was a 5.x process) This was done on 6.x I'm doing this from memory but it should be pretty close. This was a really simple process on 6.x

Expectations

Drive Setup

Install

++ Ubuntu 5.10 ++ Installing onto a Software RAID array, and using LVM for all of your volumes (including root and boot) is well supported in Ubuntu 5.10 (Breezy Badger). You will be able to do almost everything you need to do directly from the Ubuntu installer. This page will describe how to do this, aswell as any gotcha's you might run into. Also included is a section on how to migrate a machine from a different linux distro that is running Software RAID.

If you are doing this on a previous Ubuntu release, this is much more difficult. These directions Installation/RAID1 may help.

Expectations/Caveats

Installing over an Existing RAID Array

This is what I actually did, while writing these directions. Obviously I expect my directions to work from a scatch install, but that's not what I actually did. I was upgrading from a Debian Woody, RAID-1 (two drives mirror), EVMS for volume control, that had root/boot and swap on non-RAID. I decided that I didn't want to 'upgrade' my debian install to ubuntu, I wanted to destroy it and rebuild it. However, I didn't want to risk loosing all of my data. I decided what I wanted to do was yank one of the drives from the array, and keep it in reserve. I would do a full install on the first drive, once I confirmed everything was working, I would reattach the drive kept in reserve, copy my drive to the first one, then add the reserve drive to the RAID-1 array. If I had wanted to use my old EVMS volumes and partitions, I believe I could have, however I wanted to get root/boot + swap onto RAID and LVM. I have embedded the directions on how to install over an existing RAID array into the main directions, the directions associated with this type of upgrade are marked with a (i) icon. Although these directions should allow you to not need to backup your data, if you care about your data at all, you will have a second backup available if something goes wrong.

Installation

These directions can be easily tweaked for any RAID level. I'll explain as if you're doing RAID-1. If you're doing something else, you're probably smart enough to tweak the directions yourself. Any directions marked with (i) are for the Existing RAID array upgrade. You need to ignore these if you are doing a fresh install.


CategoryInstallation

Installation/LVMOnRaid (last edited 2009-07-13 14:23:39 by 66)