The ambiguity of that last statement is I did that awhile before writing this comment and I don’t recall what I booted into first, only that it worked and was not hard to figure out what to do at that point. Installation will continue, or you will boot into the OS or get the Recovery Utilities menu (where macOS can be reinstalled from or Disk Utilities run). If the recovery partition isn’t present and valid, these instructions won’t work.Ĭlick the 2nd entry, you should see (and then click): If the 2nd partition isn’t the recovery partition, look under the paths in the list to see if one of them is it. Then I retried the process for installing Catalina. It is imported to note that at the time of this writing 10.15.4 has been released but Patcher and 10.15.4 isn’t working on most machines. Click Continue until you are prompted to either browse for a copy of Apple’s Catalina installer or download a fresh copy. I installed the latest BootROM from the Catalina Patcher page. Open the Patcher DMG and run macOS Catalina Patcher.app. After that I made an El Capitan install on a USB drive with another Mac, and reinstalled El Capitan. Code Issues 108 Pull requests 0 Actions Projects 1 Security Insights New issue. It was just stuck for awhile, so I just held the power button to force the iMac to turn off. Even if after repeated attempts, you are unable to get the Mac updating process back to normal, just follow steps below to fix when Mac is stuck during the installtion of macOS Catalina. Aftet downloading the macOS Catalina, your Mac may get stuck when installing the new OS on your device. The second PCI path is probably to the recovery partition, the one you need to boot from. dosdude1 / macos-catalina-patcher Public. Mac Gets Stuck When Installing macOS Catalina. By the looks of it the hardrive has been wiped. Therefore I made a bootable USB drive with the macOS Catalina Patcher. So i tried downgrading my 2009 Mac 9,1 to mojave from the Catalina Patcher. The first PCI path in the list is probably the boot partition that doesn’t contain bootable firmware. I want to install Catalina on a MacBook Pro (13-inch, Early 2011) with 10.13.6 (High Sierra) installed. Im still on the February patch and it seems like the March patch never becomes available for download. You should see two entries in a list (they are cryptic looking PCI bus paths). Select Boot Maintenance Manager and click. You’ll be brought into an EFI text-mode GUI. I was able to fix the UEFI problems as follows ( credit to techrechard website):
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