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Ubuntu 10.04 is beautiful. I love it. I am dying to install it on my PC, alongside the existing Ubuntu 8.04 (from which I write this message right now).

But... it won't let me!

When I reach the partitioning stage (manual!) Ubuntu 10.04 sees my two HDDs as one RAID volume.

It doesn't see all the partitions I already have in place in /dev/sda and /dev/sdb.

Even Windows 7 doesn't behave like this... (yes, I actually managed to install Windows 7 64-bit in dual-boot configuration with Ubuntu 8.04 on this same system).

Note: GParted on Ubuntu 10.04 (live CD) sees the partition intended for Ubuntu 10.04 (/dev/sda4) perfectly, but is unable to format it.

Any idea how to solve this problem?

share|improve this question – Aki Dec 28 '10 at 19:24
@Aki, I am not interested in upgrading. I am interested in a fresh install, alongside the existing 8.04, in a dual-boot configuration. – Android Eve Dec 28 '10 at 19:34

Try and remove that partition (Windows Disk management should allow you to do that) so "free space" is created and then try to install.

share|improve this answer
Sorry, I tried that already. It didn't help. There is something fundamentally wrong in the way 10.04 sees or mounts my disks. Is there a way to disable this "Auto-RAID" when booting form the LiveCD? – Android Eve Dec 28 '10 at 18:37
@AndroidEve You might want to try to ask this on – BloodPhilia Dec 28 '10 at 18:42
Thanks and +1 for bringing to my attention. I didn't know about it. (there are soooooo many forums nowadays. It's mind boggling) – Android Eve Dec 28 '10 at 19:20
@AndroidEve you're very welcome! n_n – BloodPhilia Dec 28 '10 at 19:30
up vote 0 down vote accepted

Problem solved. See solution here.

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