After starting up knoppix from a CD, I start up Apache.

Then I want to delete the index.html used by Apache (in /ramdisk/var/www) but I can't seem to change the permissions on it so that I can delete it?

I can copy files to the directory (/ramdisk/var/www) but for some reason, I can't chmod the index.html and delete it?

I am sure I am just being stupid but what am I doing wrong?

I tried,

chmod 777 /ramdisk/var/www/*

and it returned,

chmod: changing permissions of '/ramdisk/var/www/index.html' : Read-only file system
chmod: changing permissions of '/ramdisk/var/www/search.html': Read-only file system


I also tried (with no luck),
sudo chmod 777 /ramdisk/var/www/*