I have a MacBook Pro early 2011. I'm thinking if to upgrade to Sierra. Right now I have Mavericks.
If I backup my current system using the time machine, when I will restore from the backup, it will be back again Mavericks?
backupmacbook promacostime-machine
I have a MacBook Pro early 2011. I'm thinking if to upgrade to Sierra. Right now I have Mavericks.
If I backup my current system using the time machine, when I will restore from the backup, it will be back again Mavericks?
Best Answer
Time machine can't hold backups of the operating system. It only backsup your personal files. The steps below will allow you to downgrade.
macOS will not allow you to run an older installer so you will need to circumvent it by doing it from a bootable drive.
You may also consider running multiple versions of OS X. You can do this by partitioning Macintosh HD. It doesn't require a format so your files are safe. Do the same steps below except first partition the hard drive before restart. In the installer, select the other partition.
Requirements:
How to do it:
launch terminal and run this command:
sudo /Applications/Install\ OS\ X\ El Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ OS\ X\ El Capitan.app --nointeraction
hit enter and type your password;
This shows how to downgrade to El Capitan. The process is the same for Mavericks. http://www.macworld.co.uk/how-to/mac-software/how-downgrade-from-macos-sierra-el-capitan-remove-macos-sierra-3581872/
Let me know what happens. I hope this is helpful.
PS: backup any files you want to save from the flash drive because it will be erased.