I have to install b43-fwcutter to my Ubuntu 14.04 for wireless. When I do
sudo apt-get install b43-fwcutter
it says:
media change: please insert the disc labeled
'Ubuntu 14.04.1 LTS _Trusty Tahr_ - Release amd64 (20140722.2)
in the drive '/media/cdrom/' and press enter
but I have no CD. I installed Ubuntu using my USB Flash Memory. I tried to plug USB back but it didn't help.
So how can I install b43-fwcutter to my Ubuntu 14.04