[Trisquel-users] help cant install trisquel 5.5

[wlados22]

Hi all
i am a gnu/linux enthusiast from Slovakia and i like to install trisquel 5.5  
next to my gnu/linux debian.
I downloaded 64bit live-cde trisquel 5.5 brigantia with gnome desktop. I  
started the ubi-installer. When i choose language, click next, then it opens  
up dialog with error. ubi-partman-error and nothing happens. The live-cd runs  
but the installer after many restarts didnt work. how can i install  
trisquel??