Check compatibility
- So, is it safe to upgrade to mac OS Catalina now? The macOS 10.15.1 update still has some bugs, specifically in the disk permission issues with various applications. You may get used to the security notifications pop-ups and terminal reminders.
- If your current operating system is OS X (10.8), you can skip a few versions, and upgrade directly to macOS High Sierra. To upgrade to Catalina from, say, Mavericks, you’ll have to consequently upgrade to Yosemite and then to El Capitan first but if you have above or El Capitan you can just go to the App Store and install it directly.
For the strongest security and latest features, find out whether you can upgrade to macOS Catalina, the latest version of the Mac operating system. If you still need macOS Sierra, use this link: Download macOS Sierra. A file named InstallOS.dmg will download to your Mac. Also, while the specs call for 4GB RAM for Catalina but I wouldn't try that myself. Catalina is more RAM hungry than previous OSs. I'dhave a minimum of 8GB. How to free up storage space on your Mac - Apple Support. Start by moving off the larger, lesser used items in your Documents, Music, Photos, Movies.
You can upgrade to macOS Sierra from OS X Lion or later on any of the following Mac models. Your Mac also needs at least 2GB of memory and 8.8GB of available storage space.
MacBook introduced in late 2009 or later
MacBook Air introduced in late 2010 or later
MacBook Pro introduced in mid 2010 or later
Mac mini introduced in mid 2010 or later
iMac introduced in late 2009 or later
Mac Pro introduced in mid 2010 or later
MacBook Air introduced in late 2010 or later
MacBook Pro introduced in mid 2010 or later
Mac mini introduced in mid 2010 or later
iMac introduced in late 2009 or later
Mac Pro introduced in mid 2010 or later
To find your Mac model, memory, storage space, and macOS version, choose About This Mac from the Apple menu . If your Mac isn't compatible with macOS Sierra, the installer will let you know.
Make a backup
Before installing any upgrade, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.
Get connected
It takes time to download and install macOS, so make sure that you have a reliable Internet connection. If you're using a Mac notebook computer, plug it into AC power.
Download macOS Sierra
For the strongest security and latest features, find out whether you can upgrade to macOS Catalina, the latest version of the Mac operating system.
If you still need macOS Sierra, use this link: Download macOS Sierra. A file named InstallOS.dmg will download to your Mac.
Install the macOS installer
Double-click the downloaded file to open a window showing its contents. Then double-click the file within, named InstallOS.pkg.
Follow the onscreen instructions, which will guide you through the steps necessary to install.
Begin installation
After installation of the installer is complete, open the Applications folder on your Mac, then double-click the file named Install macOS Sierra.
Click Continue and follow the onscreen instructions. You might find it easiest to begin installation in the evening so that it can complete overnight, if needed.
Allow installation to complete
Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar, or show a blank screen several times as it installs both macOS and related updates to your Mac firmware.
Learn more
- If you have hardware or software that isn't compatible with macOS Sierra, you might be able to install the previous version, OS X El Capitan.
- macOS Sierra won't install on top of a later version of macOS, but you can erase your disk first or install on another disk.
- You can use macOS Recovery to reinstall macOS.
Apple recently released the latest version of its Mac operating system. macOS Catalina will introduce a number of new features to your Mac. This article explains how you can upgrade to macOS Catalina. This article also teaches you how to fix the most common macOS Catalina problems.
Before upgrading
1. Installing macOS Catalina may take many hours. Make sure you’re connected to a power source if you are using a notebook computer.
2. Not all models can support Catalina. Is your Mac compatible? You can install Catalina on the following Mac models.
The macOS Catalina compatible Macs:
- MacBook (2015 or later)
- MacBook Air (2012 or later)
- MacBook Pro (2012 or later)
- Mac mini (2012 or later)
- iMac (2012 or later)
- iMac Pro (all models)
- Mac Pro (2013 or later)
![Upgrade Upgrade](https://media.idownloadblog.com/wp-content/uploads/2019/07/macOS-Catalina-hero-001.jpg)
You can check your version by going to the Apple menu > About This Mac. If your Mac is not compatible, the installer will let you know.
3. Back up your Mac. This is important, the upgrade may not go as planned. And many things can go wrong. You can use Time Machine.
4. Make sure that your Mac has at least 12.5GB free space. If you do not have ample room, make room. You can check your available storage by going to Apple menu > About This Mac, then click Storage. You can click the Manage button to open Storage Management. If you need more space, you may want to delete old and unused apps, empty Trash, compress large files, etc. This will also speed up your Mac.
5. You can install Catalina if your computer is currently running OS X Mavericks or later. You can learn your macOS name by going to Apple menu > About This Mac.
Upgrade
1. To upgrade from macOS Mojave:
- On your Mac, go to Apple menu > System Preferences, then click Software Update.
To upgrade from other macOS versions (Mavericks or later):
- Go to the Mac App Store and download Catalina.
2. Click Upgrade Now. Your Mac will start downloading the macOS Catalina software. Depending on your Internet connection, it may take several hours.
3. Once the download is done, the macOS Catalina installer will open. The installer says “to set up the installation of macOS Catalina, click Continue. Click Continue:
Mac Os Upgrade From High Sierra To Catalina
4. The next screen will ask you to agree to the software terms. Click Agree.
5. The next window will ask you where. e.g., Machintosh HD, you want to install this upgrade. Taupe color mac lipstick. Click Install. You may have to enter your Admin password.
6. Installation will start. When it is done, you will need to click Restart to restart your computer.
When your computer restart, just follow the onscreen instructions and you will be done.
Common Catalina Problems
The Request Timed Out
This error occurs because of poor Internet connections. Please make sure that you have a reliable Internet connection. And then retry again.
This problem may also occur because of the fact that a lot of people are trying to download macOS Catalina at the same time. Just wait and try again later.
Not Enough Free Space
The macOS Catalina installation may also fail if you do not have enough storage space available on your Mac. If you are having this problem, you may get an error message saying “macOS could not be installed on your computer. There is not enough free space on Macintosh HD to install. Quit the installer to restart your computer and try again.”
As stated above, you need at least 12.5 GB free space available on your Mac. This article explains how you can free up hard disk space on your Mac.
Installation Stuck: Setting Up Your Mac…
Press and hold the power button on your Mac for up to 10 seconds, until your Mac turns off and then turn your Mac back on. Your Mac should start up normally.
If that does not solve, please see this article.
Stuck on Screen Time set up
Press the power or Touch ID button for up to 10 seconds until your Mac powers off and then restart your Mac.
Spotlight, Mail Search is not working
Try rebuilding the Spotlight index. Go to Apple menu > System Preferences, then click Spotlight. Now click Privacy and add folders or disks that you want to index and exit Preferences. See also: Spotlight not working?
Other Catalina problems:
Install Mac Os Catalina
- “helpermcp” will damage your computer. You should move it to the Bin.
Download Mac Os Catalina
You can also always contact Apple support.