Hello,
Thanks for your replys.
@pragmatist: yes, i regular do a dist-upgrage on my system
@magic banana / vita cell: thanks for your advices! I know that language
matters. I try to practice speaking correct (free instead of open source,
GNU/Linux instead of only linux). But i sadly find myself often using the
"common language".
@loldier: My file-sizes are between 2 and 4.6 GBytes. The iso-Files are
lieing in the home-folder in the through Trisquel GNU/Linux preinstalled
xfs-File System. But i although tried it on a partition with the
ext4-file-system.
Im now doing a SMART-Test (thanks for great tip!) of my disk. This seems to
take some time ... .