I downloaded and burned Ubuntu 7.10 to a CD and ran it direct from the drive - good stuff!! Next I wanted to actually install it on my HDD permanently. I created some empty space on my second HDD and told Ubuntu to install itself there, which it appeared to do fine. I rather naively expected that there would appear a dual-boot process with the Win-XP on HDD1, but nothing appeared and it just boots straight into XP as usual. So I download GAG4.9, create a booting floppy and set up the various boots, which GAG identified perfectly as a Linux partition. Whilst XP boots as usual from the GAG booter, Ubuntu does not - I get a message saying "sector boot not found or invalid" Poking around with Partition Magic, I find the whole of the 2nd hard drive is declared to be 'bad', message is 'invalid extended partition'. Norton disk manager says it is invalid too. The odd thing is, two other partitions that I left on that drive (data backups), are still perfectly usable in Windows, and can still be seen in Partition Magic. So apparently Ububtu has done something unexpected with the first partition, which makes the whole drive appear to be an invalid extended partition, yet the two extended partitions on there are still intact. Yet Ubuntu boot deos not work. Can anyone shed light on what is wrong or what I should have done to get a working Ubuntu on my 2nd HDD ?