On Monday 11 December 2017 18:50:06 Akemi Yagi wrote: > As far as I know, the contents on the CentOS wiki are for CentOS 7.3 (or > earlier) and a patch is needed to use the driver under 7.4. > > You may want to go to the ELRepo article that is referenced on that page ( > http://elrepo.org/tiki/wl-kmod > ). The ELRepo instructions are up to date and should cover EL7.4. > > Akemi I have followed your suggestion and all seemed fine. After rebooting I tried to do the modprobe but got the following: [root at gary ~]# modprobe wl modprobe: ERROR: could not insert 'wl': Required key not available [root at gary ~]# This relates to the secure boot that is mentioned on the page. I therefore went through the process of disabling secure boot. This consisted of running: [root at gary ~]# mokutil --disable-validation password length: 8~16 input password: input password again: [root at gary ~]# After doing this I rebooted. As part of the reboot I was supposed to be asked for the password that I had just created but I wasn't. Then, after the reboot I tried the modprobe command but received the same error message. Anyone got ideas what I need to do next?