Dec 13, 2017 - Don't have enough space for macOS High Sierra upgrade? On June 13, 2016 Apple announced the release the latest desktop operating. Apr 06, 2018 MacOS High Sierra is Apple's latest operating system for Macs and replaces Sierra. The update runs on iMacs and MacBooks from late 2009.
Was kind to answer some of my questions with the folowing: ' There's two factors involved for boot, how long it takes for EFI to find the APFS disk, and how long it takes for the kernel (once loaded) to mount it inside the macOS system. The first part (on an unsupported Mac) is done by newCore which is slower than the native Apple method that exists on the firmware of all updated Macs (and it's slower because it essentially does all the firmware modifications on every boot, rather than baking it into firmware).
The EFI extensions, however, are from Apple, (and fully compatible with unsupported Macs) so kernel loading is similar speed once the disk is found. Since there's no technical contest between both newCore and Apple, the second part of the video only concerns the difference after the kernel has started. The second factor is up to macOS itself, modifications aren't involved. APFS itself involves extra containers and additional metadata that the kernel has to churn through before mounting the OS partition (as well as potential bugs), so compared to HFS that adds additional seconds before any of the relevant services have time to start.
Obviously it is a Developer Beta, so there's still some work left to go through before they are on par or faster. Also note that this only involves boot, once you get into the userland macOS, things are very snappy, more so than HFS! Luigi222 said: Oh ok, once again thanks for the explanation. That explains a lot, and why you say we can only ( for now ) test APFS with dual system setup once you release your NewCore 0.2 tool.
So it's doesn't look too good that, if even you or another found a way for example to modify your paticular mac firmware model to boot APFS like a supported machine, this would not necessarily mean that it would work on other models right? I do see a very positive thing here, like you said once the system is fully loaded on APFS, that the system usage is indeed faster that's very good to know! Said:You don't need a dual system to boot APFS, Sierra is only required for installation (you can boot it externally and have a whole APFS disk that way). The APFS boot system itself runs off the ESP partition (hidden by default under macOS). Baking the needed extensions to firmware means that it has to be ported to every unsupported Mac, and that assumes every firmware ROM has enough space to fit the extra software. ' So we know for a fact that with newcore 0.2 tool is released, it is in fact possible to install and boot APFS, installing it on a seperate partition using sierra for the installation.
However the user in question was asking about a clean install, like we create a bootable disk with the os on it and can format the hardrive of the mac like we can do this moment with sierra patch tool of sierra patcher. Thats what I understood and thats why I wrote what I wrote. Are you saying you have a new method?/QUOTE. Hello all, DP2 update failed on MacMini 3.1 I was out of the room, when I came back, the computer was shut down.
I restarted and got the 'no system' sign. I started with the installer stick and did the post install. (dosdude) But the partition don't want to start. I have a folder 'MacOS install data'. Edit: Okay, I started up with my general system, and selected the start volume again. Now High Sierra has started.
But I have still the folder 'MacOS install data'. And System is 10.13 Beta (17A264c), I think it is still beta 1. I will update all over, will see what happens. Edit 2: Same procedure. Download was okay, when doing restart, update bar shows up. Finally restart and 'no system' sign. Did postinstall again.
Well, selected the start volume again, and again reboot in DP1. Thanks everyone.
Click to expand.Sorry, I meant ATI X1300/1600/1900. X3100 is harder because the kexts have to be from 10.6.2 which has a much older API version. 7300GT also seems very likely to work. It does support full acceleration.
It works as a library libLionGLDShim.dylib which is a 'proxy' for ATIRadeonX1000GLDriver which adds blank implementations of some functions related to opencl so that libGfxShared does not ignore the driver completely. None of the other APIs changed in 10.8/10.9.
This means that any programs that try to use opencl will crash, but who cares? The card doesn't support it anyway. Sorry, I meant ATI X1300/1600/1900. X3100 is harder because the kexts have to be from 10.6.2 which has a much older API version. 7300GT also seems very likely to work.
It does support full acceleration. It works as a library libLionGLDShim.dylib which is a 'proxy' for ATIRadeonX1000GLDriver which adds blank implementations of some functions related to opencl so that libGfxShared does not ignore the driver completely. None of the other APIs changed in 10.8/10.9. This means that any programs that try to use opencl will crash, but who cares? The card doesn't support it anyway.
Is the next major operating system for Mac — but just because you take it for a whirl, doesn't mean you're ready to commit your daily driver to it just yet. If you've decided you'd rather return to macOS High Sierra, you can downgrade with just a few steps. If you follow these steps you'll be back to your old setup in no time.
Note: If you are reading this article on the Mac that you want to downgrade on, switch to another device or print this page before continuing so you can read along as you go. Step 1: Back up your Mac This process will erase macOS Mojave from your hard drive entirely. That means any files, programs, or documents you've been working on while using macOS Mojave will also be erased if you don't back them up first. Use an or a cloud-based program like DropBox, OneDrive, or iCloud. If you don't save these important files somewhere off of your computer you will lose them. Step 2: Create a bootable drive of macOS High Sierra Before you erase macOS Mojave from your computer, download macOS HighSierra from the Mac App Store. It should be on your purchase list, or you can simply search for it in the Mac App Store.
You'll need a copy of macOS High Sierra in order to downgrade from macOS Mojave. MacOS High Sierra may no longer be available to download in the App store now that macOS Mojave is live. You should have downloaded a copy of High Sierra before macOS Mojave launched. Follow the steps linked below to make a bootable installer drive for macOS High Sierra. Note: Making a bootable installer requires the use of Terminal.
If you don't feel comfortable making changes to your Mac with Terminal, you can create a bootable disk using the. Step 3: Erase macOS Mojave. Connect your Mac to the internet via Wi-Fi or Ethernet.
Click on the Apple icon in the upper left corner of the screen. Select Restart from the drop-down menu. Hold down Command+R, and keep holding the keys until your computer reboots. This will put your computer into Recovery Mode. Click on Disk Utility in the OS X Utilities selector.
Click Continue. Select your Startup Disk. Click on the Erase tab at the top of the window. Enter a name for the file to be destroyed (Like macOS Mojave or something). If your Mac is using HFS+, select Mac OS Extended (Journaled) from the format list.
If your Mac is using APFS, select APFS from the format list. If Scheme is available, select GUID Partition Map. Click Erase. After the process is complete, quit Disk Utility from the drop-down menu in the upper left corner of the screen to go back to the OS X Utilities selector.
Step 4: Reinstall macOS High Sierra After you have, you will want to reinstall an earlier operating system. NOTE: If your Mac came with macOS High Sierra, you can restart your Mac while holding down Shift-Option-Command-R to simply install the operating system that came with your Mac. Otherwise, follow the steps below to install High Sierra back on your Mac.
Connect your Mac to the internet via Wi-Fi or Ethernet. Click on the Apple icon in the upper left corner of the screen. Select Restart from the drop-down menu. Hold down Option while your computer restarts. This will send you to the option to select a startup disk. Select your bootable drive with macOS High Sierra from the list of startup disk options.
MacOS High Sierra will begin installing on your Mac. Click Continue in the macOS High Sierra installation window. MacOS High Sierra will install like a standard update. You will agree to the licensing terms before the software reboots on your Mac. Step 5: Restore settings from an earlier macOS High Sierra Time machine backup If you have a recent backup of your Mac saved (which you should), you can use it to reinstall the settings you have saved from macOS High Sierra. Connect your Mac to the internet via Wi-Fi or Ethernet. Click on the Apple icon.
Select Restart from the drop-down menu. Hold down Command+R when you hear the startup chime and keep holding the keys until your computer reboots. Select Restore from Time Machine Backup in the OS X Utilities selector. Click Continue. Click Continue after reading the important information about restoring from a backup. Select the Backup source for where your Time Machine backup is stored. Click Continue.
Select the most recent macOS High Sierra backup on the drive. Click Continue.
Your Mac will begin restoring from the Time Machine backup and then reboot. This process can take a while, so grab a cup of coffee while you wait. If you run into any problems while trying to downgrade your Mac operating system, let us know in the comments. Updated September 2018: Updated for the public launch of macOS Mojave.