Ik heb net Ubuntu even opnieuw geinstalleerd en na de installatie gelet of die melding van de firmware weer terug kwam.
Na de installatie het log weer bekeken en daar stond het wat ik bedoelde.
http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware and download the correct firmware for this driver version. Please carefully read all instructions on this website.
[ 9.988862] sky2 eth0: enabling interface
[ 9.990114] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 10.742738] ppdev: user-space parallel port driver
[ 10.932145] b43 ssb0:0: firmware: requesting b43/ucode15.fw
[ 10.939598] b43 ssb0:0: firmware: requesting b43-open/ucode15.fw
[ 10.945874] b43-phy0 ERROR: Firmware file "b43/ucode15.fw" not found
[ 10.945933] b43-phy0 ERROR: Firmware file "b43-open/ucode15.fw" not found
[ 10.945986] b43-phy0 ERROR: You must go to
http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware and download the correct firmware for this driver version. Please carefully read all instructions on this website.
Deze melding verdween nadat ik de juiste hardware driver voor mijn wifi gedownload had via stuurprogrammas.
Dus dit raadsel is opgelost.
Bedankt in ieder geval