This time, boot from “Install macOS Big Sur Beta” (or similar).
#PATCHED SUR DOWNLOAD DMG MAC#
Turn the Mac back on (or reboot it if you skipped step 9), with the Option key down again, to use the Startup Selector again. (These changes include disabling SIP, disabling authenticated root, and enabling TRIM on non-Apple SSDs.) This indicates that the setvars EFI utility has finished making the necessary changes to the Mac’s NVRAM settings. Within a few seconds, although most likely in under a second, the Mac will suddenly power down. If more than one has a yellow icon and you cannot tell which one is the one on the installer USB, try unplugging the installer USB, observing the set of icons on the screen, then plugging the installer USB back in and watching how the icons change.) Start up from “EFI Boot”. (If you have multiple “EFI Boot” drives, it’s the one with the yellow icon.
The installer USB will actually show up as two different drives with the same icon, “Install macOS Big Sur Beta” (or similar) and “EFI Boot”. (Try repeating this step if you see a prohibited/no-entry sign during boot) Restart the Mac while holding down the Option key t`o use the Startup Selector. Since Disk Utility in Big Sur may have new bugs, this may be a good time to use Disk Utility in High Sierra/Mojave/Catalina to do any partitioning or formatting you may need. You may also add a -e option to for the installation of the setvars version which enables these features (for instance, if you are installing Big Sur on a 2012 or 2013 Mac that has been upgraded with an 802.11ac WiFi card and therefore does not need a WiFi patch). You may add a -d option to force the installation of the setvars version which disables these features (for instance, if you are creating the USB on a Late 2013 iMac but you will be using it on another Mac).
#PATCHED SUR DOWNLOAD DMG INSTALL#
However, the “Verbose” in “Verbose Mode” is not a joke, and most users will want to avoid this.Īs of Big Sur Micropatcher v0.4, install-setvars.sh will now install a version of setvars which enables Apple’s System Integrity Protection (SIP) and Authenticated Root Volume (ARV) security features if it is run on a Late 2013 iMac, or a version of setvars which disables both of these features if it is run on any other model of Mac. If you want the patched USB stick to configure your Mac to boot in Verbose Mode, run install-setvars.sh -v instead of just install-setvars.sh. (This patcher is easier to use if the installer USB stick is not renamed after createinstallmedia is used, but it can still work if the USB stick has been renamed.) Use createinstallmedia as usual to create a bootable USB stick with the installer and recovery environment, as you would on a supported Mac. (If this USB stick already contains a patched Big Sur installer created using micropatcher v0.2.0 or later, and you are re-creating it with a newer version of the micropatcher or a newer version of Big Sur, you may skip this step.) (This is a new requirement as of micropatcher v0.2.0.) Note that the volume name does not particularly matter, since it will be renamed by createinstallmedia in the next step. (You may need to choose “Show All Devices” before Disk Utility will allow you to do this.) In order for this patcher to run optimally, the USB stick must use GUID Partition Map and not Master Boot Record. Use Disk Utility to erase the USB stick using “Mac OS Extended (Journaled)” format and “GUID Partition Map” scheme.
If you are viewing this on GitHub, and you probably are, then click the green “Code” button then “Download ZIP”.
Make sure you have a 16GB or larger USB stick to use for creating the installer.ĭownload a copy of this patcher. $ sudo /Applications/Install \ macOS \ Big \ Sur.app/Contents/Resources/createinstallmedia -volume /Volumes/Your \ Usb \ Volume \ Name
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