xcode-select -print-path /Library/Developer/CommandLineTools sudo rm -rf /Library/Developer/CommandLineTools xcode-select --install
Sometimes screen sharing service on your headless Mac mini may crash. This should fix the issue:
sudo launchctl unload /System/Library/LaunchDaemons/com.apple.screensharing.plist sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.screensharing.plist
You can simply use Minecraft bundled Java runtime to install OptiFine.
~/Library/Application\ Support/minecraft/runtime/jre-x64/jre.bundle/Contents/Home/bin/java -jar /path/to/OptiFine_1.14.4_HD_U_F3.jar
How to force SMB2, which actually doesn’t work for me:
Related discussion on Apple Communities
Bug reports on Apple Radar:
How to submit
- Command + Option + Shift+ Control + Period (.)
- Or in Terminal:
Note: The sysdiagnose process can take 10 minutes to complete. Once finished, the folder
/private/var/tmp/ should appear automatically in the Finder and the sysdiagnose file there will look similar to this:
View active SMB connection status:
smbutil statshares -a
sudo trimforce enable
This guide will talk about rebuilding a failed RAID 1 disk with WD My Book Duo on macOS, it should also works on Thunderbolt Duo or other RAID 1 setup.
Many other guides only tell you how to replace the whole two disks without restoring / rebuilding data for this common situation:
In a common case, your RAID 1 setup could fail with only one defective disk, while the other is online. If you see this status on your macOS:
- Buy a brand new disk, same size and model as your failed disk.
- Reboot your mac in recovery mode, this step is very important to make sure your disks are not used by macOS.
- In recovery boot, open Disk Utility.
- Rename your RAID set, for example if your RAID set is
External-Raid, rename it to something like
External-Raid-Rebuildor just some names different than your original, this is the most important step to make sure your RAID set wouldn’t be using after entering macOS system.
- Restart your system in normal mode.
- Login to your system, then open Disk Utility, congrats, you will see the new disk is now rebuilding.
- Restraint editing/adding/removing files on your RAID set while rebuilding.
- The rebuild process could take hours depends on your disk size (10-20 hours for a 4 TB + 4 TB RAID 1 setup).
- After the rebuild complete, you can rename your RAID volume name back to original.
This is not the only way to rebuild your RAID with a failed disk. According to WD documentation, you can power on your My Book Duo without connecting to macOS (remove the thunderbolt cable), then the My Book Duo should rebuild it automatically. However, it’s really hard to know when the rebuild process will finish, there’s no special indicator status for this situation, so I prefer rebuilding in macOS. This could be the best method for me.
sudo vi /etc/services
5900 and edit it.
sudo launchctl unload /System/Library/LaunchDaemons/com.apple.screensharing.plist sudo launchctl load /System/Library/LaunchDaemons/com.apple.screensharing.plist
It was available at
Install it on macOS:
- Download cert bundle (
.p7b) or individual certs (zipped) from DigiCert
- Double click to install them on macOS Keychain Access
Install it on iOS:
- Open Keychain Access, select category My Certificates
- Right click and choose Export, select format
.p12(Make sure to export your cert into
.p12, this will contain private key for iOS to send encrypted emails)
- Email it with your individual certs (root CAs from DigiCert) and install them on iOS
- Select this cert under email account settings
If you like me owning more than one Mac and using one of them to control the other via macOS built-in Screen Sharing feature, you may occur this issue after you upgrade your macOS to Sierra.
macOS Sierra introduces a new feature Universal Clipboard which can share the same clipboard among iOS and macOS devices. This sounds cool, but as it’s technically a part of Continuity feature, it would require Bluetooth to work.
So the problem is, when I control my Mac mini from my MacBook Pro via Screen Sharing in the same network, with the Shared Clipboard enabled, the Universal Clipboard would still always try to “sync” copied content via Bluetooth instead of using Screen Sharing Shared Clipboard.
It’s ok if both of your Macs are at your hand, but it’s a disaster if they’re in different rooms, Universal Clipboard via Bluetooth would become really slow to connect to each other, and this issue could even make your VNC drop connection if you copy images to your clipboard.
So here’s the solution, just disable Bluetooth on your Mac mini, and wait Apple to fix this bug.