That makes it sound like it took 10 minutes, but it took more like an hour. Then tried to install Catalina, and it went right in. After getting back from the emergency room being treated for blood loss from banging my head against a brick wall, and being an obstinate you know what, I tried twice more. Tried a few more times on the iMAC at various times of day, etc., making sure I had trashed any previously downloaded files, emptying the trash, and then shutting down and starting. Tried downloading to a Windows computer and to a Linux computer. Tried downloading it to another MAC and transferring it to the iMAC with a flash drive. I thought maybe I just had a corrupt download so I trashed it and tried again. dmg file downloaded but wouldn’t install. Tried Safari and the link came alive but again, IIRC, the Mojave. I tried to do that from Firefox and the link was totally dead. I found an Apple web site that claimed I could download Mojave and then install it. Ha! The icon was basically non functional I don’t remember whether it was basically a dead link or whether I got some kind of error message, but in any case it was worthless. In Launchpad I had the “Install Mojave” icon so I thought I’d be all set to do what I wanted. I had intended to upgrade to Mojave (the next step up just as Big Sur is the next step up from Catalina). If you do not know who your IT Support Provider is, please use the IT Lookup Toolto locate the appropriate support resource for your department.This doesn’t really answer your question about safety, but I was in an analogous situation with an iMAC running High Sierra. Students can contact the Tech Team for assistance with or questions about upgrading their machine to a supported version of macOS.įaculty, Staff, and Employees should contact their IT support unit. Where can I get help with upgrading macOS? Once your computer has successfully upgraded to macOS 10.11 you can use the steps above to upgrade to a supported version of macOS. If you are running macOS 10.10 or lower, you will need to upgrade your computer to 10.11 El Capitan first. To see if your computer can run macOS 11 Big Sur, check Apple’s compatibility info and installation instructions. If you are running macOS 10.11 or newer, you should be able to upgrade to at least macOS 10.15 Catalina. If you are upgrading from an older version of macOS, you may need to also upgrade some of the applications installed on your computer. The process of upgrading your computer varies depending on which version of macOS is currently installed on your computer.Īs of 10.15 Catalina, macOS does not support 32-bit applications. If this is the case, you will need to replace your current computer with a newer model. If your computer does not meet the minimum requirements for Catalina or Mojave, you will not be able to install a supported version of macOS. If you are running an older OS, you can look at the hardware requirements for the currently supported versions of macOS to see if your computer is capable of running them:
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