From: G Gambill
> I have reduced the Windows C drive partition by 60 Gig

Using what?

> While trying to install Ubuntu 12.04 I get a message about
> no Root file system defined.

> /dev/sda1 ntfs 208 M
> /dev/sda2 ntfs 171245 M
> unusable 60000 M
> /dev/sda3 ntfs 18494 M
> /dev/sda4 fat32 108 M

That's a weird partition layout.  The real problem is that you can only have 4
primary partitions on a non-GPT partition table, and all 4 are currently in
use.  You'll have to get rid of at least 1 partition here.

Do you have any idea what sda3 and sda4 are being used for?  I would guess
that sda3 is a "restore" partition, containing an image of the machine's disk
as it was when it was installed.  This is probably not all that useful to you
since you have partimage available and can use partimage to back up your 'Doze
partition.

So:  If you're paranoid, make backups of all the partitions.  Then delete sda3
and sda4 and create a new sda3 which covers everything from the end of sda2 to
the end of the disk.  Tell your distro's install CD to use sda3 as / .  And
think about using something other than Ubuntu; Unity is a pain.

-- 
Matt G / Dances With Crows
The Crow202 Blog:  http://crow202.org/wordpress/
There is no Darkness in Eternity/But only Light too dim for us to see

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