2020. 11. 9. 12:19ㆍ카테고리 없음
Jul 24, 2013 Repair disk permissions to speed up your Mac. It won't cure all of your Mac's ills, but a quick and easy first step toward bringing a sluggish Mac back to health is using OS X's Disk Utility to.
What are disk permissions and why do they need repairing?
Disk permissions on macOS are used to keep your files secure. They’re designed so that certain programs (or other users if you share your Mac) can’t just dip into a system file they have no business with and modify it. They’d need permission to do that.
Every file and folder on your Mac comes with an associated set of permissions. From the Apple Community:
“Many things you install in Mac OS X are installed from package files (whose filename extension is '.pkg'). Each time something is installed from a package file, a 'Bill of Materials' file (whose filename extension is '.bom') is stored in the package's receipt file, which is kept in /Library/Receipts/ in Mac OS X v10.5 and earlier. These files don't take up much disk space and you shouldn't put them in the Trash. Each of those '.bom' files contains a list of the files installed by that package, and the proper permissions for each file.”
Unfortunately, these permissions can easily become messed up unintentionally. It’s quite common for this to happen when installing and uninstalling apps on your system. And when it does, apps can find themselves with free reign to alter files and modify read-only files which can cause all kinds of permission errors and system issues such as lagging, freezing, or crashing.
If you notice anything out of the norm regarding system performance, the first thing you should do is troubleshoot those disk permissions.
Below we’ll show you two ways: the manual and the easy one. Choose the way that works best for you.
How to repair permissions on Mac: The manual way
If you’re running an older version of macOS, Disk Utility is the go-to tool for troubleshooting problems.
Why an older version?
Because as of macOS version 10.11 El Capitan, Disk Utility no longer comes with the option 'repair disk permissions'. Boooo!
Apple even removed the command line:
But there’s a method to the madness. macOS now comes with a feature called System Integrity Performance (SIP) which is designed to automatically repair file permissions during software updates and system changes. SIP works by restricting the root account so that it can’t do things like modify protected locations and processes such as /System and /usr. This should prevent malware from gaining root permissions and infecting your system files.
Anyway, back to using Disk Utility to repair disk permissions. If you’re running a pre-El Capitan version of macOS, follow these steps:
1. Press Command + Space to open Spotlight, type in “Disk Utility”, and hit Enter.
2. Select Macintosh HD from the left sidebar menu.
3. Click on the First Aid tab.
4. Click on Verify Disk Permissions. By taking this step, Disk Utility will work through your hard drive to detect broken or misbehaving permissions and list them for repair. This might take a few minutes but you can check the Show details box to keep an eye on its progress.
5. Click on Repair Disk Permissions and wait while Disk Utility runs through the identified permissions to fix them.
If disk permission issues have played such havoc that your Mac won’t boot correctly, it’s possible to access Disk Utility in Recovery Mode. Do this by holding Command + R during bootup.
Repair Library Permissions Mac Photos
If you’re installing a newer (or older) version of macOS on top of your existing operating system, Mac will perform a disk permission repair as a part of the installation so that you start from a clean slate.
How to repair disk permissions on Mac: The easy way
For users of macOS versions El Capitan and newer, the removal of Repair Disk Permissions means you have no troubleshooting solution to turn to in if your Mac is ailing.
But worry not, CleanMyMac X is the hero you need.
CleanMyMac is like Disk Utility in that it does all of the heavy lifting for you to verify permissions and repair your Mac’s disk.
Even System Integrity Performance running quietly in the background doesn’t prevent certain issues from arising. If you’re suffering from any of the following problems, boot up CleanMyMac and have it take care of business:
- Improper functioning of applications.
- Inability to move or delete files.
- Inability to access files.
If you Mac appears to be running fine, it’s still worth running repairs every so often to ensure it stays that way. Not all broken permissions affect performance but that doesn’t mean they shouldn’t be fixed.
Repair Library Permissions Macbook Pro
Repairing Disk Permissions in a few clicks
First things first, you’ll need to download CleanMyMac X. You can do that here. It’s free so you won’t need your credit card. Once that’s done, follow these five steps:
1. Launch CleanMyMac.
2. Click on Maintenance from the left sidebar menu.
3. Check the box next to Repair Disk Permissions.
Repair Library Permissions Mac Os
4. Click Run.
CleanMyMac will scan your system to verify disk permissions and automatically repair permissions that are found to be faulty. When the task is complete, you’ll be able to view a log of all the permissions that were repaired.
And that’s all there is to it. Your Mac should now be running as intended.
Disk permissions are critical to your system’s security and performance but only when they’re working as they should. Use CleanMyMac to verify and repair disk permissions whenever you run into issues with apps or files for a healthy running Mac.
Enjoy a clean, happy Mac!
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Sometimes, when you use iPhoto to open a photo library, you may see an error that says ‘This photo library is locked, on a locked disk or you do not have permissions to make changes’. What are the reasons for the error and how can you resolve it? Let us understand more in this article.
Case 1: Make sure iPhoto is being accessed from only one machine
Repair Library Permissions Machine
Please note that the iPhoto library can be accessed from only one iPhoto at a time. So, if you are accessing the library that is already open on another machine (using file sharing or any such feature) you may receive the error. In that case, close the iPhoto on the machine that has it open and try re-opening it on your machine.
Case 2: Obtain read and write permissions
To be able to open the iPhoto library, it requires that you have both read and write permissions. Even if you don’t intend to make changes to the library, you still need to have write permissions just to open the library and view images.
- If the iPhoto library is on an external hard drive or a USB pen drive, follow the steps below to obtain permissions.
- Connect the device on which you have iPhoto library and open Finder
- Choose the device from the list and click on File > Info
- At the bottom of the Info dialogue, check the box next to ‘Ignore ownership on this volume’ and close the window.
This will help you obtain all read-write permissions to the drive on which iPhoto library is present. Now you should be able to open the library without any issues.
- The same is the case when you are accessing an iPhoto library from a NAS drive or Time Capsule; make sure you obtain write permissions.
Case 3: Repair iPhoto library
About Permissions
If the above methods don’t help, there may be corruption issues within your iPhoto library. To repair such issues, use the built in Repair library feature as explained in the steps below.
- Click on the Command + Option keys and open iPhoto
- Press the keys until the Rebuild Photo Library dialog box appears
- Click on Repairthe iPhoto Library Database for the tool to repair the database and click on Rebuild
- Then proceed with the on-screen instructions to repair the library’s database
Permissions Manager
If Repair library doesn’t fix the issue, you can also use ‘Rebuild the iPhoto library database’ feature which will allow you to rebuild the library. This can resolve most problems, but before you attempt this step, make sure to have a backup of your photos just in case anything happens during the process.
However if you have lost photos after repairing or rebuilding library, and no backup is available, you can use Remo Recover to recover lost photos from iPhoto library. A trial version of the software is available for free, be sure to try it out today!