Catalina App


This occurs when the copy of the macOS Catalina Installer app used has gotten corrupted somehow. To rectify this, use Catalina Patcher to download a fresh copy of the Catalina installer, then re-create an installer volume and/or retry the installation. The Zoom application does not show any video during meetings. Aug 11, 2020 Go to Launchpad → App Store. In the search bar on the left-hand side, enter macOS Catalina and press the Enter key. Click on the VIEW button. Then click the GET button or iCloud download icon. Click on the Download button. It takes time to download the macOS Catalina installer app, so make sure that you have a reliable Internet connection. The Catalina installer app will be in your Applications folder, so you can go there and launch it later to upgrade your Mac to the new operating system. Make a bootable installer drive: The quick.

We recently started updating our macOS apps for Catalina: so far there have been very few issues with APIs and frameworks. The biggest hurdle has been the new notarization process that’s required for apps signed with a Developer ID: customers will be unable to download and launch your product easily until this step is completed.

Notarization involves an extra step in your build process: you upload an archived binary to Apple’s server with Xcode’s Organizer window and a short time later, you can export the binary. If you’ve automated your build process, you’ll need to make changes to your scripts to accommodate this new manual step. Apple’s documentation explains the process well.

Before you can notarize the app, you’ll need to enable the hardened runtime in the target’s Capabilities panel. After flipping the switch you’ll see a array of exceptions and access permissions. You’ll want to survey this list carefully: for one product we needed Apple Events, for another Location was required.

Things start to get tricky when you go to upload the binary: if you’re using Sparkle, it’s probably been codesigned without the hardened runtime, so you’ll immediately see an error.

Sparkle Without a Sandbox

How you deal with this error depends on which of the Sparkle versions you’re using. If your app isn’t sandboxed, your life will be a bit simpler because there are fewer things you’ll need to sign manually.

After the target’s Copy Files build phase where the Sparkle.framework is moved into the application package, you’ll need to create a new Run Script step: I called ours “Sign Frameworks”. The script looks like this:

The key part in this step is the -o runtime. The codesign manual page describes this flag as:

On macOS versions >= 10.14.0, opts signed processes into a hardened runtime environment which includes runtime code signing enforcement, library validation, hard, kill, and debugging restrictions. These restrictions can be selectively relaxed via entitlements. Note: macOS versions older than 10.14.0 ignore the presence of this flag in the code signature.

Catalina App

The good news here is that the build changes we’re making won’t affect your app when it runs on an older version of macOS.

Sparkle in a Sandbox

If your macOS app is in a sandbox, you’ll be using the version that relies on XPC services to perform the update. Like everything else in your application package, these will need to be signed correctly before you can submit your app for notarization.

The “Sign Frameworks” build phase should look like this:

You’ll also add a new Run Script build phase just before the XPC Services are embedded in your application package. Since you’ll only need to do this for release builds, the script looks like this:

But wait, we’re not done yet! You’ll also need to update the codesign_xpc Python script with the -o runtime flag. It looks like this when you’re done:

You’re Not Done Yet

At this point, you should be able to do a build where everything in your app is using the hardened runtime. It’s more likely that you’ve had some kind of issue along the way: this Apple document helped get me over the rough patches. (Thankfully, I didn’t have to writeit this time around.)

After the notarization upload completes, you’ll see “Uploaded to Apple” in the organizer, then after a few minutes you’ll get an email and Xcode notification that your app is “Ready to distribute”. In the righthand panel underneath “Distribute App”, you’ll see that the “Export Notarized App” button is enabled and can be used to place the signed package anywhere on your Mac for further processing.

In our case, we had to split up the build scripts into two parts: previously we had a single script that did the build, signed it with the Developer ID, and then created an appcast. Sparkle’s XML file is now created with a separate script that also prepares the release to be checked into our repositories.

Catalina app

One final note: these instructions are based on Xcode 10, which is currently the only development tool that can be used to submit an app for notarization or the Mac App Store. Before we figured that out, we found that Xcode 11 does a better job passing along the -o runtime flag during a framework’s Code Sign On Copy. It’s likely that all this work you just did will only be needed for a few months. Sigh.

macOS 10.15, also known as macOS Catalina, is Mac’s most recent—next-generation—operating system. Apple’s macOS Catalina comes with more to offer compared to its predecessors. A few of this operating system’s features include experience-dedicated apps for podcasts, TV, and music. The best part about this OS is that upgrading is easy and free for all Mac users.

Before getting started, you first have to check if your Mac meets Catalina’s hardware requirements so you can proceed to install it. Here is a list of Mac devices and models compatible with macOS Catalina:

  • MacBook 2015 and later
  • MacBook Air 2012 or later
  • MacBook Pro 2012 or later
  • Mac Mini 2012 or later
  • iMac 2012 or later
  • iMac Pro 2017 or later
  • Mac Pro 2013 or later

You can follow these steps to find out the kind of Mac you have:

  1. Navigate to the Apple menu.
  2. Select About This Mac.
  3. The Overview tab will display your Mac from the Overview tab.

Important Information About macOS Catalina

In macOS Catalina, Apple no longer supports any 32-bit apps. Therefore, any apps on your Mac that have not been updated from 32-bit to 64-bit will not function on this OS.

To identify the 32-bit apps on your Mac, follow these steps:

  1. On your screen’s top left corner, click on the Apple icon.
  2. Select About This Mac.
  3. At the bottom of the window, click on the button labeled System Report.
  4. On the window’s left side, click on Applications (under the Software section).
  5. A list of applications will populate.
  6. To find the 64-bitcolumn,move to the right using your cursor. Any 32-bit apps will have No listed in this column.

Catalina App

Before you can upgrade to macOS Catalina, there a few things you have to sort out first, such as:

  • Confirmation of your Mac’s compatibility for macOS Catalina.
  • Creation of a Time Machine backup.
  • Ensuring your Mac has sufficient storage to download, install, and upgrade to macOS Catalina.

Creating a Time Machine Backup

Before upgrading to macOS Catalina, it is crucial to create a Time Machine backup. The reason for the backup is a safety measure for when you find your Mac to be incompatible with the Catalina OS, which means you can erase the upgrade and restore it using the backup you created.

Creating a backup whether upgrading or downgrading your Mac is not only a good idea, but also imperative. Unless you would not mind losing everything, we highly recommend creating a Time Machine backup before upgrading to macOS Catalina. Without the backup, it would take a lot of time to restore your system to its previous OS. You would have to download each program, plug-in, and driver once more.

Follow these steps to format an external hard drive for macOS:

  1. Start Disk Utility, which you can find by navigating to Applications > Utilities > Disk Utility.
  2. Choose the hard drive device and then click on Erase (if initiated, the process is irreversible)
  3. Choose a name for your drive (e.g., My Backup) and select the format: Mac OS Extended (Journaled), then click on Erase.

Follow these steps to create a Time Machine backup drive:

  1. Start Time Machine and click on Select Disk.
  2. Connect a drive (reformatted or empty).
  3. Select the drive you have just connected (e.g., My Backup) and click on Use Disk.
  4. Click on the Backup taskbar icon and then select Backup Now.

Catalina Apple

Downloading macOS Catalina

The upgrade to the macOS Catalina process involves two steps: backup and installation. After you have created a backup, the next step is visiting the App Store to download the macOS installer. Depending on your internet speed, the download may take some time. Upon completing the download, you can install the macOS Catalina app that you can find in your Applications folder.

Storage Space Required for the Download

Macos Catalina App Compatibility

macOS Catalina needs storage of 12.5GB to 18GB for upgrading. Therefore, if you have insufficient space on your Mac, you can make a backup of some files then delete them from your system to avail the storage required.

Upgrading from Mac OS X Older Versions

Macos catalina app

Any older versions of Mac OS X 10.7-10.10 have to first upgrade to Mac OS X El Capitan 10.11 version before upgrading to macOS Catalina, which you can download from Apple’s Catalina download page.

To do this, follow these steps:

  1. Launch the System Preferences menu, and thenselect Software Update.
  2. Click on the Download or Upgrade Now button to begin the download of the Catalina installer.

Catalina Appliance Repair Men

Installing macOS Catalina

Follow these steps to install macOS Catalina:

  1. After completion of the macOS Catalina installation app download, the installer will automatically launch itself. If not, go to your Mac’s Applications folder and double click the Install macOS Catalina app.
  2. Follow the instructions that appear on-screen to finish the upgrade and start using the OS.
  3. Select an external drive to create an external drive for macOS or an internal drive to upgrade the Mac when prompted.

macOS Catalina’s New Features

Follow these steps to complete installing macOS Catalina’s new features:

  1. After macOS Catalina installs, your Mac will restart.
  2. After it has started, click on the Apple icon and select About This Mac to view the Catalina OS version.