![]() This occurs when the copy of the macOS Catalina Installer app used has gotten corrupted somehow. During installation, the installer reports that "An error occurred during installation", and mentions running diagnostics.Please follow the instructions in the "Important Info" section above to rectify. This is necessary in order to boot Catalina. Installing High Sierra on these machines will update the machine's system firmware, allowing it to boot from an APFS volume. This usually occurs on machines that support High Sierra (macOS 10.13) natively, but whose owners have not installed High Sierra on them previously. During installation, the machine keeps booting off the installer volume, and will not complete the second phase of installation.After that point, the affected application should no longer experience this crash. To work around this, immediately relaunch the affected application after receiving the crash message. This is an issue Apple introduced in 10.15.4, and is not an issue with the patch itself. Some third-party applications do not open or crash on launch.Download the latest Catalina Installer using the latest Catalina Patcher version. ![]() This happens when using a release of the macOS Catalina Installer App that is incompatible with the version of Catalina Patcher you are using. I get an error saying "The installer is damaged, and can't be used to install macOS".The 2007 iMac 7,1 is compatible if the CPU is upgraded to a Penryn-based Core 2 Duo, such as a T9300. 2006-2007 Mac Pros, iMacs, MacBook Pros, and Mac Minis:.Macmini5,x (systems with AMD Radeon HD 6xxx series GPUs will be almost unusable when running Catalina.).Early-2009 or newer Mac Mini or white MacBook:.Late-2008 or newer MacBook Air or Aluminum Unibody MacBook:.iMac12,x (systems with AMD Radeon HD 5xxx and 6xxx series GPUs will be almost unusable when running Catalina.).iMac11,x (systems with AMD Radeon HD 5xxx and 6xxx series GPUs will be almost unusable when running Catalina.).Early-2008 or newer Mac Pro, iMac, or MacBook Pro:.If you have trouble with DiskMaker X here is a way to do it using the built-in Disk Utility in OS X. Copying installer files to disk.Īnd after half an hour or so the USB drive will be a bootable OS X El Capitan Installer that you can use to install or upgrade OS X!įor more info check out the Apple Support article here: You will get a response like this: Erasing Disk: 0%. Sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app -nointeraction Format your blank USB (8GB is a good size) as Apple OS X Extended (Journaled) using Disk Utility and call it ‘Untitled’.(Download from App store but make a copy of it before you install it as the Apple Installer deletes it after you use it.) Download and keep a copy of the ‘Install OS X El Capitan’ App.If you want a way that is slightly longer but easier for beginners download and run Diskmaker which does the steps below for you automatically! How to make a bootable El Capitan Installer. ![]() It is the quickest way but it uses the terminal so it is for advanced users. Here’s how to make a bootable installer of El Capitan on a USB Thumbdrive.
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