- Install Mac Os On Second Hard Drive Computer
- Install Osx On Second Hard Drive
- New Hard Drive Os Install
Move all the NON OS and Apps off the boot drive.
Install Mac Os On Second Hard Drive Computer
If you aren't in the APFS world yet, you will need to partition the main hard drive into two separate drives and then install macOS Catalina on one and the other version of MacOS on the other.
Devices and partitions have different erase options - in Show only volumes mode (which was the default for me), you'll be offered the single partition version of Erase, which doesn't give you the option of changing the scheme (which is a device level option). Disk Utility has two view modes for the left panel: Show only volumes and Show all devices, accessible via the View dropdown in the top-left corner. Mac os x sierra encrypt external usb hard drive windows 10. After changing the Partition Map even the Finder offers you a file system encryption.Disk Utility 'Erase'-Dialog after choosing 'Master Boot Record':Disk Utility 'Erase'-Dialog after choosing 'GUID Partition Map'. Switch to Show all devices and right-click on the device to see the full set of erase options.–Jun 18 '18 at 9:54.
Keep all your applications with the system drive.
Install Osx On Second Hard Drive
Mac OS doesn't normally need more than 150GB by itself, a few people have twice that (X-Plane can go anywhere and use 60GB)
New Hard Drive Os Install
I also would go for Windows on its own drive instead.
Purchase an older version of Mac operating systemYou can purchase a boxed or email version of past Mac OS X directly from Apple. The membership cost is $99/year and provides a bunch of perks unavailable to ordinary users.Nevertheless, keep in mind that if you visit developer.apple.com/downloads, you can only find 10.3-10.6 OS X operating systems there. Both will cost you around $20. Newer versions are not available because starting Mac OS X Snow Leopard 10.7, the App Store has become the only source of updating Apple OS versions.
Move your home account to another drive or just all the data/doc and media libraries.
I've played with a dedicated 3rd party apps drive (10K or 15K SCSI) and it doesn't help. Sometimes you can install a few third party with your home folder if you really insist and drag and drop, most installers will still need to add to the boot drive's Library.