Every-time i keep trying to run "apt- get update" from the root, it keeps saying stuff like "cant fetch, ftp://bahbah.url.bahbah.com read only file system, failed to open" until it reaches 100% how do i fix this? i think i got to fix some permissions on my computer, but i dont know how can anyone explain step by step?

Also, im using a cd to boot, how do i save my settingss do i dont lose my dsl connection and files every time i start up/


Thanks.