I successfully stitched together my first panorama pictures on GNU/Linux. I used the GUI frontend hugin, which itself uses autopano-sift for automatic detection of mapping points. For the actual stitching process I used enblend, but not from within hugin, as there currently is no possibility to watch it progressing. This tutorial helped me doing my first steps, more tutorials are available on hugin’s website.
My first try was on a series of 3 pictures of a rainbow above Vienna, Austria:
Next, I created a panorama picture of a mountain view consisting of 8 pictures, which I took last october near Kitzbühel in Tyrol, Austria:
Installation of these tools was quite easy, as I use a distribution which includes such cutting-edge multimedia programs in its package tree: Gentoo Linux.