macOS Catalina Patcher Disk


Catalina Patcher – install macOS 10.15 Catalina on unsupported Macs using the macOS Catalina Patcher Installer Disk.

Please check the list of Macs below that are Catalina enabled through this installer.

The version that ships on this USB disk is always the latest version at time of postage. It will be able to upgrade a previous version of Catalina too.

Some Macs that run macOS 10.13 High Sierra won’t run 10.14 Mojave or 10.15 Catalina. This was Apple’s decision and not necessarily based on the power or capability of these Macs, but on a particular choice of graphics technology called Metal. This technology will make it easier for Apple to make progress with Augmented Reality for instance, though I can’t say I know anyone today for whom that is a real priority. So, this patched version of the installer does not require the Metal capable graphics hardware.

It installs macOS Catalina like the normal installer, but then requires a reboot back into the installer to run a utility that applies a post-install patch. Then a final reboot starts Catalina normally. You can either upgrade a previous version of macOS to Catalina, including Mojave installed by the previous patcher, or install Catalina from scratch. Additionally, if you have already used an earlier version of this disk to install Catalina, but have found that Catalina doesn’t automatically install subsequent updates, this patcher disk will install the latest version (see my post here).

The Catalina Patcher has been developed by the remarkable DosDude1, and is available as a download from his site. Then an additional download of Catalina is required to ultimately create the disk that we supply here. This disk therefore saves you all the bother. For step-by-step installation instructions please follow his page, starting at step 4 with this disk.

He lists the following Macs as compatible:

• MacPro3,1
• MacPro4,1

• iMac8,1
• iMac9,1
• iMac10,x
• iMac11,x and iMac12,x (systems with AMD Radeon HD 5xxx and 6xxx series GPUs will be almost unusable when running Mojave.)

• MacBookPro4,1
• MacBookPro5,x
• MacBookPro6,x
• MacBookPro7,1
• MacBookPro8,x

• Early-2008 or newer Mac Pro, iMac, or MacBook Pro:
• Late-2008 or newer MacBook Air or Aluminum Unibody MacBook:
• MacBookAir2,1
• MacBookAir3,x
• MacBookAir4,x
• MacBook5,1

• Early-2009 or newer Mac Mini or white MacBook:
• Macmini3,1
• Macmini4,1
• Macmini5,x
• MacBook5,2
• MacBook6,1
• MacBook7,1

• Early-2008 or newer Xserve:
• Xserve2,1
• Xserve3,1

There are caveats. It works better on some macs than others. Please check his list. In my own experience, I have 3 older macs and the patcher has given me 2 working Catalina Macs – one of which I am using now to type this – and another that had weird graphical effects such that I quickly reverted back to High Sierra. See my post here on Macwiz.

Some of the Macs listed above are not even High Sierra capable. So the disk may possibly work to install Catalina on a Mac that would not even install a previous macOS! I haven’t tried this. Please read DosDude1’s page carefully for install on such macs.

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Additional information

Weight 5.0 g
Dimensions 2.0 × 0.5 × 0.25 cm