Hi,
i want to install opensuse 11.1 on an U3 USB stick.
I want to be still able to use the U3 apps but i want to be able to boot from this stick too.And i don´t want to use 8GB and have nothing left.:
Hilfesuchender;)
I have no idea what “U3” is, but for a basic liveCD install of openSUSE 11.1 (KDE4), you will need an absolute minimum of 2.5 gigs!
That won’t leave you much free space for installing more applications or personal files, but it should run.
I would recommend (not that I’m an expert!) that you go without a swap partition. From experience it tends to slow everything right down when you are running an install off a USB stick.
First find out how much free space you have on the USB stick, and if you have circa 2.5 to 3 gigs spare, boot the openSUSE liveCD and run the Partition manager in Yast and resize the existing partitions. You will need 1 primary partition of minimum 2.5 gigs for the root filesystem (/), that will include /home as simply a part of that 1 big partition.
But please backup the entire contents of the stick first if you value the contents :).
Oh, and make sure that grub is installed on the USB’s MBR, and not on your existing hard drive as is the default!! And always double check what is going to happen before starting any partitioning!! Read twice, act once ;).
It is not a good idea to have a OS on an USB stick. It is horribly slow you know, it’s better if you’d have just a Live CD on it. I tried and installed 11.1 on a 8GB Kingston Traveller USB 2.0 (some may be slightly faster) but it will still be slow like hell and it will wear out your stick pretty fast i think.
Consider creating two partitions on the stick, one big enough to put the live CD on it (tool for it: unetbootin) and the rest leave as FAT32 (or whatever you desire 
)
The unofficial KDE 3.5 live USB image isn’t actually that slow, and can be installed directly with unetbootin.
I suspect it would destroy the U3 thing.
I personally don’t think that’s a bad thing. U3 silently uploads a program to any Windows PC you plug it into. It’s essentially corporate malware. There are much better, cross platform, tools you can install that will let you do encryption and backup without acting like that.
(Un)fortunately, I don’t think so.
I also purchased a 8GB stick from sandisk with this crap preinstalled and it was a PITA to get rid of that “feature”, not even dd-ing the whole stick with zeros removed that stuff.
The only way to get rid of it was under Windows (used my XP in VBox for that) and a special software provided by sandisk.
ACK
Cripes! I didn’t know that was possible. I thought DDing was lower level than even the partition table.
Like electronic cockroaches… 
Thank you very much…okay after reading that i think i´d prefer installing it on my 9GB Partition on my computer…but as i started yast this programm wanted to format etc. all my partitions.And so because i don´t want losse data i cancelled it.
mybe i should just wait a bit longer buy an cheap leptop and install it on that laptop.Would be easier.I run Knoppix from my stick but i don´t know i just wanted to try sth. new.
9GB is fine for a test installation. You won’t be able to do a lot, but you can play around in it.
Just click ‘custom partitioning’, and set the 9GB gap to mount as /, and don’t bother with home or swap. It’ll tell you it doesn’t advise it, but it certainly won’t stop you doing it.