Im having a problem updating a binary file on the ubuntu 10.4 lts update manager
 

The file wont update It tells me to mount the cdrom using apt-cdrom I do that and then it tells me to do that to the cd set? does anybody have this problem on there netbook? If you need more info i will get it thank you.

Use the Synaptic Package Manager to remove the CD-ROM as a repository.

On the Gnome Desktop upper bar click the following:

System -> Administration -> Synaptic Package Manager

Enter your password.

When the Synaptic Package Manager window opens click the following:

Settings -> Repositories

When that window opens it will be on the Repositories tab. Near the bottom you will see CD-ROM. Uncheck that entry. Then click on the Close button.

Close the Synaptic Package Manager.

The Update Manager should now look to the Internet for all of its updates.

ok thank you I didnt know you could use that package manager that helped me alot but I had to install easypeasy my ubuntu 10.4 crashed on me. anyway i tried mounting my external cdrom to the computer and it wont let me? the error message im getting is sudo apt-cdrom add
Using CD-ROM mount point /media/apt/
Identifying.. [31bd15ad1c511ecea03ed941fa9e4825-2]
Scanning disc for index files..
Found 0 package indexes, 0 source indexes, 0 translation indexes and 0 signatures
E: Unable to locate any package files, perhaps this is not a Debian Disc or the wrong architecture?

I used sudo apt-cdrom add to mount the cdrom but its asking me to put in a cd? what cd is that? i dont understand? please help thank you