Need help, tips, suggestions on downgrading Catalina to Mojave and dual-boot
45231
Can I install Mojave on boot drive and still keep Catalina running
113256
macOS Catalina: "App is damaged and can't be opened. You should move it to the trash."
52087
How to re-download Lion from Mountain Lion
38518
Macbook Air - how to install a dual bootable Ubuntu 14.04 LTS
122514
Having 2 Application folders in macOS Catalina
117553
Some fast way to save and restore tabs of Terminal?
11780
How can I download the macOS Big Sur installer on a Mac which is already running Big Sur?
129
How do I find out which version and derivative of Ubuntu is right for my hardware in terms of minimal system requirements?
96500
How to delete kexts in Catalina?
52382
Where can I get a copy of Mavericks after Yosimite has been released?
126343
How to downgrade a package via apt-get?
56653
iMac won't boot off of Mavericks USB when downgrading from Yosemite
71348
Downgrading sfdx-cli
151222
Ubuntu on MacBook Pro - pros and cons?
42634
How do I upgrade to the development release (aka. Ubuntu+1)?
7580
How to safely upgrade from an older Ubuntu version to a newer one?
157860
How to delete pre-installed apps in Catalina?