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Archive of October 8th to 12th, 2018 News     Go to Current News Page

Mac Upgrades/Mods | Storage | Video | Audio/Home Theater | macOS Updates/Tips/Wi-Fi
= Recent Updates/Articles =

Carbon Copy Cloner v5.1.6 Update (release notes) [= Details =]
(General Info on Carbon Copy Cloner 5, including 30 day trial at
Tip for macOS Mojave users with "No Wi-Fi Hardware Installed" problem
(The original tip post has been removed at Apple's forum. Added link to similar post.)
Saw several users with this problem say renaming /etc/sysctl.conf file (if it exists) solved it. Usually with the "No Wi-Fi hardware installed" problem, there's no Ethernet also. (Not running 10.14 personally but posts in several threads replied this helped, as well as with other issues.)
In case the post gets deleted (again) here's a copy of the user tip (backup your drive first):
"Fixed it! It is amazing to me that one tiny config file can bring down the whole system! I followed the instructions of someone else in the replies (forgot the name) and Mohave installed without a hitch. Here are the instructions:

If you're also seeing symptoms like networking failing, bluetooth devices not connecting, etc, and you have been using the mac for a while (or restored it from another machine using migration or time machine), then it's due to an old, out of date system configuration file: /etc/sysctl.conf
This file doesn't even exist on new macs, so if you have it, it will cause problems. (At least with the upgrade to macOS 10.14.)

A. If you can log in (even if slow), or you're still on High Sierra, and have not yet upgraded, follow these instructions:

1. Start the terminal app from Applications/Utilities

2. Check if the file exists, by typing

ls -l /etc/sysctl.conf

If this returns a result like the following, then the file exists. (If it does not, then your issues are caused by something else.)
(You could also just go to the Mojave boot drive's etc folder, and rename the sysctl.conf file (i.e. to sysctl.bak). You'll need the admin password to rename it.)

-rw-r--r-- 1 root wheel 136 24 Nov 2013 /etc/sysctl.conf

3. Remove the file: (actually this command will simply rename it, so you can restore it if you really want to...)

You'll be prompted for your password.

sudo mv /etc/sysctl.conf /etc/sysctl.conf.bak

4. Restart your computer, and you should be all set, or if you've rolled back to High Sierra, you should be good to attempt the Mojave upgrade again.

B. IF you are unable to successfully log in at all (usually those who are running encrypted disks), then you're going to have to do a couple of steps first.

  1. Reboot in to 'recovery mode' by holding Command-R when you power on the computer until you see the apple logo.
  2. You'll be presented by a menu with the 4 recovery options. One of them is 'disk utility'. Click on it to load disk utility.
  3. Disk utility displays a list of the drives/partitions on your computer. One of these will be called something like 'Macintosh HD'. Select it. Next, On the top right hand corner of the disk utility window is a series of icons, one of which is called 'Mount'. Click on this. If you disk is encrypted, it may ask you to type in your password to unlock it. Do so.
  4. Quit the disk utility app. This should take you back to the recovery menu.
  5. Launch the Terminal app as follows: In the top main menu bar is a menu called 'Utilities'. Open this menu, and you should see 'terminal'. Click on it to launch.
  6. From terminal, rename the troublesome file: mv /etc/sysctl.conf /etc/sysctl.conf.bak
  7. Exit terminal, and restart your mac. You should be able to log in successfully."
That fixed it for many, but if the /etc/sysctl.conf file isn't present, check if you have any 3rd party security or network related app/startup item or extension installed - if so, remove it and reboot. (If networking works in Recovery mode, that points to a software addon issue.)
DisplayLink USB Software Updates for Macs
The DisplayLink macOS USB Software releases page has an Oct. 10th, 2018 dated v5.0.1 for macOS Mojave, v4.3.1 for High Sierra/Sierra/El Capitan and v3.1.1 for OS X Yosemite (10.10.x).
Apple/products related News, Software Updates, Tips, PR
Apple Support/How-To/Troubleshooting Article Updates
Page of How-To, Troubleshooting & Tips for Mac/OS X/iOS Users from Airplay to Thunderbolt.

Other News, Updates, Reviews, Tips, OT:

Recent Updates, Tips, DIY Upgrades and Repairs:
List of Updates, DIY Upgrades, Repair Articles, Tips and more you may have missed. (Topics range from OS/software updates and troubleshooting, to hardware upgrades and repairs.)
Previous News Archive Summary: For links to past news pages, see the Archives.

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