I Have the 24 inch, Early 2009 iMac. Honestly speaking, if you max out the RAM you should be good. I ran Mojave on it with 6 GB of RAM and the 760 GB 7200 rpm HDD, and the only thing that was a problem was the long bootup time. So I’m going to put an SSD in there soon and do it again. My advice: max out the RAM, put an SSD, and format the. How to do a regular install of macOS Catalina. Check that your Mac can run Catalina. Here’s the list of compatible Macs: MacBook 2015 and later. MacBook Air 2012 and later. MacBook Pro 2012 and later. IMac 2012 and later. IMac Pro 2017 and later. Mac Pro 2013 and later. Make sure you’re connected to the internet and have a reliable.
If you're using one of these computers with OS X Mavericks or later, you can install macOS Catalina. Your Mac also needs at least 4GB of memory and 12.5GB of available storage space, or up to 18.5GB of storage space when upgrading from OS X Yosemite or earlier. Learn how to upgrade to macOS Catalina.
MacBook Pro
Imac 2009 Upgrade To Catalina Free
IMac Pro (2017) If you are running from Lion or Mountain, you need to upgrade to El Capitan first before you upgrade to macOS Catalina. The installer will let you know if your device is not compatible with macOS Catalina. Create a backup. Now that you are ready to upgrade to Catalina, it’s wise to make a backup before any upgrade.
- MacBook Pro (13-inch, 2020, Two Thunderbolt 3 ports)
- MacBook Pro (13-inch, 2020, Four Thunderbolt 3 ports)
- MacBook Pro (16-inch, 2019)
- MacBook Pro (13-inch, 2019, Two Thunderbolt 3 ports)
- MacBook Pro (15-inch, 2019)
- MacBook Pro (13-inch, 2019, Four Thunderbolt 3 ports)
- MacBook Pro (15-inch, 2018)
- MacBook Pro (13-inch, 2018, Four Thunderbolt 3 ports)
- MacBook Pro (15-inch, 2017)
- MacBook Pro (13-inch, 2017, Four Thunderbolt 3 ports)
- MacBook Pro (13-inch, 2017, Two Thunderbolt 3 ports)
- MacBook Pro (15-inch, 2016)
- MacBook Pro (13-inch, 2016, Four Thunderbolt 3 ports)
- MacBook Pro (13-inch, 2016, Two Thunderbolt 3 ports)
- MacBook Pro (Retina, 15-inch, Mid 2015)
- MacBook Pro (Retina, 15-inch, Mid 2015)
- MacBook Pro (Retina, 13-inch, Early 2015)
- MacBook Pro (Retina, 15-inch, Mid 2014)
- MacBook Pro (Retina, 13-inch, Mid 2014)
- MacBook Pro (Retina, 15-inch, Late 2013)
- MacBook Pro (Retina, 15-inch, Early 2013)
- MacBook Pro (Retina, 13-inch, Late 2013)
- MacBook Pro (Retina, 13-inch, Early 2013)
- MacBook Pro (Retina, 15-inch, Mid 2012)
- MacBook Pro (15-inch, Mid 2012)
- MacBook Pro (Retina, 13-inch, Late 2012)
- MacBook Pro (13-inch, Mid 2012)
MacBook Air
- MacBook Air (Retina, 13-inch, 2020)
- MacBook Air (Retina, 13-inch, 2019)
- MacBook Air (Retina, 13-inch, 2018)
- MacBook Air (13-inch, 2017)
- MacBook Air (13-inch, Early 2015)
- MacBook Air (11-inch, Early 2015)
- MacBook Air (13-inch, Early 2014)
- MacBook Air (11-inch, Early 2014)
- MacBook Air (13-inch, Mid 2013)
- MacBook Air (11-inch, Mid 2013)
- MacBook Air (13-inch, Mid 2012)
- MacBook Air (11-inch, Mid 2012)
MacBook
- MacBook (Retina, 12-inch, 2017)
- MacBook (Retina, 12-inch, Early 2016)
iMac Pro
iMac
- iMac (Retina 5K, 27-inch, 2020)
- iMac (Retina 5K, 27-inch, 2019)
- iMac (Retina 4K, 21.5-inch, 2019)
- iMac (Retina 5K, 27-inch, 2017)
- iMac (Retina 4K, 21.5-inch, 2017)
- iMac (21.5-inch, 2017)
- iMac (Retina 5K, 27-inch, Late 2015)
- iMac (Retina 4K, 21.5-inch, Late 2015)
- iMac (21.5-inch, Late 2015)
- iMac (Retina 5K, 27-inch, Mid 2015)
- iMac (Retina 5K, 27-inch, Late 2014)
- iMac (21.5-inch, Mid 2014)
- iMac (27-inch, Late 2013)
- iMac (21.5-inch, Late 2013)
- iMac (27-inch, Late 2012)
- iMac (21.5-inch, Late 2012)