Stuckgrade Mac OS
How to find and install older macOS/OS X versions? If you want to download installer images and downgrade your operating system here you can find some instructions.
- Macbook Pro 2010 slow on 10.10?Downgrade back 😊 and enjoy your Mac ♥️Sad to see that the higher the OS builds, the slower devices get, but worse is that.
- Restart the computer. Immediately after the chime hold down the Commandand Rkeys until the Utility Menu appears. Select Disk Utility and click on the Continuebutton. Select the indented (usually, Macintosh HD) volume entry from the the side list.
- (Lucas's MacLifeHacks #20)Ingrid asks, should I upgrade my Mac OS? Learn why you should or shouldn't upgrade your MacBook's operating system to the newest ve.
- MacOS Big Sur elevates the most advanced desktop operating system in the world to a new level of power and beauty. Experience Mac to the fullest with a refined new design. Enjoy the biggest Safari update ever. Discover new features for Maps and Messages. Get even more transparency around your privacy.
The maximum version of Mac OS X, OS X, or macOS supported by each G3 and later Mac follows. For complete specs on a particular system, click the name of the Mac. For all Macs that are compatible with a specifc maximum supported version of Mac OS X - courtesy of EveryMac.com's Ultimate Mac Sort - click the OS of interest.
Below the links list you can find short “cut to the chase” instruction how to create bootable usb drive and install/downgrade operating system on your MacBook. If you find something to hard please inform me in a comment section below article 🙂
Links:
How to create bootable MacOS usb drive:
Stuckgrade Mac Os Download
Format your pendrive to MacOS Extended format:
Problems with formatting?
If for some reason you can’t do this (access denied etc.) you can totally erase your stick using terminal.
Find your drive (by capacity or name it will be something like /dev/disk2 depending on your machine):
Use this command to unmount drive:
And finally destroy the partition table:
After this operation go to Disk Utility (command + space to search) and format your drive.
Copy OS to USB stick
Mount downloaded OS image (it’s often as easy as double click on a file). If installer is an app file simply type in your terminal:
Of course change paths according to your setup 🙂
Booting up
Put your drive into MacBook, press option/alt key, turn it on and select correct device.
Problems with broken installer
Stuckgrade Mac Os Catalina
If you’re having troubles with message like this:
This copy of the Install macOS application is damaged, and can’t be used to install macOS
Mac OS installerStuckgrade Mac Os X
You need to turn back your clock (for installation time only). Run terminal and type:
Stuckgrade Mac Os Sierra
Format for this command is [mm][dd]HH]MM[yy]
This happens because certificates of older installers are obsolete. So we need to cheat system that they’re still valid.
Please report broken links in the comment section. Thanks.