okay I have been messing around with knoppix for a while now and I have a problem with instailling things. I click on the file and click instaill, it asks me for the root password I type that in and then it bring up some crazy

about dpkg -i '//home/knoppix/ymessenger_0.99.17-1_i386.deb' ;echo RESULT=$?
dpkg: unable to access dpkg status area: Read-only file system
RESULT=2

what does this mean?