1. Open Hidden Library In Mac
2. System Library Mac

Jul 09, 2018 To view another Mac user account’s logs located under “User Reports” or “/Library/Logs,” you’ll have to sign in as that user and then open the Console app. You can copy data from your system logs to a text file, if you need to export it to share it with someone else for troubleshooting purposes. MacOS is the operating system that powers every Mac. It lets you do things you simply can’t with other computers. That’s because it’s designed specifically for the hardware it runs on — and vice versa. The operating system kernel itself puts checks on the root user’s access and won’t allow it to do certain things, such as modify protected locations or inject code into protected system processes. All kernel extensions must be signed, and you can’t disable System Integrity Protection from within Mac OS X itself.

Photos in your System Photo Library are available in apps like iMovie, Pages and Keynote. You can also sync them to iOS devices and Apple TV via iTunes. And if you want to use your own images as your desktop picture or screen saver, the images need to be in your System Photo Library before you can select them in System Preferences.

If you have only one photo library, then it's the System Photo Library. Otherwise, the first photo library that you create or open in Photos will become the System Photo Library. If you have more than one library, you might need to designate a System Photo Library, so other apps can access the photos and videos you want them to use.

Follow these steps to designate a System Photo Library:

1. Quit Photos.
2. Hold down the Option key, then open Photos. One of the photo libraries is already designated as YourLibraryName (System Photo Library).
3. Choose the library you want to designate as the System Photo Library.
4. After Photos opens the library, choose Photos > Preferences from the menu bar.
5. Click the General tab.
6. Click the Use as System Photo Library button.

If you open a second or different library in the Photos app, and you haven't designated it as the System Photo Library, other applications will use photos from the original System Photo Library. Hold down the Option key when you open Photos to see which library is set as the System Photo Library.

iCloud and the System Photo Library

Open Hidden Library In Mac

System Library Mac

You can use iCloud Photos, Shared Albums and My Photo Stream only with the System Photo Library. Upload to facebook from icloud photo library mac os. If you choose a different library in Photos without designating it as the System Photo Library, the iCloud tab in Photos preferences is disabled:

If you designate a new library as the System Photo Library and then turn on iCloud Photos, the photos and videos in the new library will merge with those already in your iCloud Photos. If you want to keep the contents of your photo libraries separate, don’t turn on iCloud Photos for more than one library in Photos.