MAC

macOS Tools

Download macOS Big Sur > Get it on the Apps Store

Download older versions of macOS

• macOS Catalina 10.15 (can upgrade Mojave, High Sierra, Sierra, El Capitan, Yosemite, Mavericks)
• macOS Mojave 10.14 (can upgrade High Sierra, Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion)
• macOS High Sierra 10.13 (can upgrade Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion, Lion)

Create bootable macOS USB drive

Create bootable macOS drive using DiskMaker X:

1. Download DiskMaker X
2. Download macOS from App Store into Applications folder  [Do NOT run installer]
3. Attach a USB drive … Using Disk Utility erase USB drive [Name: Untitled] [Format: OS X Extended (Journaled)]
4. Launch DiskMaker X … Follow the prompts to complete the USB creation …

https://support.apple.com/en-us/HT201372

Create bootable macOS Big Sur (10.16) install drive using <createinstallmedia> utility:

1. Download macOS Big Sur from App Store into Applications folder  [Do NOT run installer]
2. Attach 8GB USB drive … Using Disk Utility erase USB drive [Name: Untitled] [Format: OS X Extended (Journaled)]
3. Start Terminal and type:

sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled

Create bootable macOS Catalina (10.15) install drive using <createinstallmedia> utility:

1. Download macOS Catalina from App Store into Applications folder  [Do NOT run installer]
2. Attach 8GB USB drive … Using Disk Utility erase USB drive [Name: Untitled] [Format: OS X Extended (Journaled)]
3. Start Terminal and type:

sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled

Create bootable macOS Mojave (10.14) install drive using <createinstallmedia> utility:

1. Download macOS Mojave from App Store into Applications folder  [Do NOT run installer]
2. Attach 8GB USB drive … Using Disk Utility erase USB drive [Name: Untitled] [Format: OS X Extended (Journaled)]
3. Start Terminal and type:

sudo /Applications/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled

Create bootable macOS High Sierra (10.13) install drive using <createinstallmedia> utility:

1. Download macOS High Sierra from App Store into Applications folder  [Do NOT run installer]
2. Attach 8GB USB drive … Using Disk Utility erase USB drive [Name: Untitled] [Format: OS X Extended (Journaled)]
3. Start Terminal and type:

sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled