Are you running the OS off a hard drive, or a larger-than-normal stick?
What happened to me was, I started the upgrade (I just went to upgrade-manager and did it from within there), and it showed me a surprisingly few number of packages it wanted to remove & upgrade, and it also wanted to disable some "third-party" repositories (the neuros stuff
). Well, I let it, and aside from wanting to stick (as usual) some stupid "quick splash" options in my menu.lst (I HATE
want to see what my machine is doing during booting - I removed those options last thing before rebooting), everything went smoothly during the reboot.
Well, it came back up, and everything looked awfully similar, right down to the background, which usually changes on a distro upgrade (or it has for me). I went back t0 upgrade-manager, and sure enough, it was still offering me 9.04. Well, I started it again - but this
time, it wanted to upgrade the usual large number of packages - and said I was nearly a gig short of space. Now, I absolutely have NOT
gone hog-wild installing stuff on the box; in fact I've trimmed quite a bit of fat imho...so I'm definitely not sure what/where I could pare down anything else.