So while the rest of the OS may run just fine, your uncle could run into some features that generate errors, system hangs, etc. For the most part, Apple stops supporting OS upgrades because the hardware (CPU, graphics, Bluetooth, etc.) can't support key new features. While many things are "possible," sometimes they turn out to be impractical. Considering the age of some of the Macs that can run High Sierra but won't be able to run Mojave, I'd expect they'll be issuing security updates for High Sierra for well more than two years. That Mac has been on Apple's Vintage and Obsolete list for several years, yet they're still issuing security updates that can benefit machines like mine. I'm running El Capitan on an early 2008 iMac. Whether that's two years or three years of ongoing support depends on how you count things - three years from the release of El Capitan, or two years from the release of the subsequent OS, Sierra. Only Apple knows whether they'll continue after that. Apple is still issuing security updates for El Capitan - they'll at least do that until Mojave is released. There's no hard-and-fast rule from Apple on this. If you're going to install an unsupported OS, you may as well choose High Sierra, unless you have old software that won't run on it. So, either Sierra or High Sierra will be unsupported installs. If I understand the original post, "Low" Sierra is not officially supported on that machine either. It will show you the specific model number, something like "MacBookPro5,5". And then click on the button that says "More Info" or "System Report". Click on the Apple in the top left corner and go to "About This Mac". Since you’re new at this, you would best tell us the exact model. For Sierra, subtract one year from those dates. I would expect that High Sierra will continue to get some maintenance updates until 2020, and if so, these machines will be viable until about 2022. Apple typically issues Safari updates for older versions of macOS, but usually the newer the version of macOS, the more recent the Safari support. Apple typically issues security updates for older versions of macOS, but usually the newer the version of macOS, the more recent the security updates.Ħ) Longer Safari support. This is less important since these old Macs don't have enough horsepower to play most HEVC, but at least the compatibility is there.ĥ) Longer security support. These files are completely unreadable in Sierra.Ĥ) HEVC video support. The support is only with certain software, but at least it works. This is key, since iOS devices take a lot HEIF/HEIC images these days. Photos is hugely improved in High Sierra.ģ) HEIF image support. I wouldn't recommend an APFS boot disk, but there are still external drives.Ģ) Better more up to date native software, like Photos. If you're going to install an unsupported OS, you may as well choose High Sierra, unless you have old software that won't run on it.ġ) Better compatibility with APFS. Select that one and boot off it.ħ) Reboot to the USB drive and run the patches.Ĩ) Reboot the internal drive and enjoy High Sierra!Ĭlick to expand.If I understand the original post, "Low" Sierra is not officially supported on that machine either. These requirements are the same for Sierra and High Sierra IMO.Īssuming it is indeed a MacBookPro5,x model, the process is as follows:ġ) Download dosdude1's High Sierra patcher.Ģ) Follow the instructions to create a USB drive with the patched macOS installer on it.Ĥ) Plug in the USB drive and turn on the computer to do a cold boot of the Mac, while holding down the OPTION key.ĥ) If the USB drive can cold boot, you should see an orange external drive listed. Overall, I think 10.13 High Sierra is the superior upgrade on these old Macs, as long as they have SSD and sufficient RAM, which is bare minimum 4 GB, but preferably 6 or 8 GB. Plus that bug is present in a couple of fully supported Macs too, so it's not the fault of the unsupported install. That bug is completely absent in 10.12 Sierra, but I've only seen that bug in the wild in real world usage twice in 9 months using High Sierra on two such old machines, and in both instances it wasn't a big deal. Most people will never or only very rarely see that video bug. 10.13 High Sierra also has a h.264 video bug that only occurs under very specific circumstances. It depends on what software you are running. High Sierra has more up to date features and software than Sierra, but is also less compatible with old legacy software. Click to expand.Since you’re new at this, you would best tell us the exact model.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |