macOS Sequoia is available: The Mac operating system can be installed as a software update or by downloading the installer from the Mac App Store (start here). Once completed, just follow the step-by-step on-screen instructions: Installer download ends automatically starts.
If you want a backup copy, it may be useful to install the new system on an external disk, starting with a USB stick with the new operating system. This is also useful for installing the system on multiple computers without having to download it from scratch. Option to initialize your Mac’s internal disk/SSD every time you perform a full clean install from the network or from scratch.
If you want a backup copy, it may be useful to install the new system on an external disk, starting with a USB stick with the new operating system. This is also useful for installing the system on multiple computers without having to download it from scratch. Option to initialize your Mac’s internal disk/SSD every time you perform a full clean install from the network or from scratch.
As mentioned earlier, the USB stick can be used to install a system on multiple machines without having to re-download the operating system on each machine, as an emergency system, to boot when needed or for maintenance if for some reason the internal drive cannot be accessed Start the operation on the computer.
What type of USB flash drive to choose?
USB drives are not all the same. To create bootable media specifically for your operating system, you must select a USB memory stick that is at least 32 GB in size. If possible, choose a new generation fast USB memory stick with integrated USB 3.0 or USB 3.1 ports. They provide greater bandwidth, and when used on a fairly new Mac, all of this translates into higher read/write speeds.
On Amazon you will find countless solutions, such as the SanDisk SDCZ73-064G-G46 Ultra USB 3.0 (the 64GB version costs €12.21 at the time of writing), ideal for connecting devices with a traditional USB-A port or USB- Used in conjunction with Port A Mac. USB-C.
How to create a USB memory stick using macOS Sequoia?
There are several ways you can create a key. In all cases you will need a USB stick of at least 32GB (for previous systems you could also use a 16GB stick) Initialize as Mac OS extension (Journaled) or external disk (USB, Firewire or Thunderbolt). The method described applies not only to macOS 15 Sequoia, but also to previous macOS 14 Sonoma, macOS 13 Ventura, macOS 12 Monterey, macOS 11 Big Sur, macOS 10.15 Catalina, macOS 10.14 Mojave, macOS 10.13 High Sierra, mac Talk, Cappi tank, operating system
Open terminal
Setting up a flash drive requires carefully entering long commands from the terminal, and this tool can be intimidating to the inexperienced, as it is designed for system administrators and people familiar with the command line. Anyway, here’s how to proceed
- Download the macOS Sequoia installer from the Mac App Store and wait for the download to complete (you can check the download stage from Settings > General > Software Update).
- After the download is complete, close The installer starts automatically: Just open the “MacOS Sonoma Installer” menu (top left corner) and select “Exit macOS Installer” or press Cmd-Q; the installer you just downloaded will remain in the Applications folder.
- Connect the USB flash drive (or other disk volume) and initialize it from the “Disk Utility” in “OS” Remember the name assigned to the drive (in our example, we named the drive “Key”). attention: Initialization will erase all data that may exist on the USB drive!
4 – Open the Terminal application (located in the Utilities subfolder of Applications).
5 – In Terminal, type the following command (using copy and paste) and press Return to get started (we assume the operating system installer remains in the Applications folder and the file in question is called macOS Sequoi Installer” and the key has been initialized with the name “Key”):
sudo /Applications/Install\ macOS\ Sequoia.app/Contents/Resources/createinstallmedia --volume /Volumes/Chiavetta\
6 – Enter the administrator password and press “Y” (Yes) when prompted. After a few minutes (you must wait for various files to be copied to the disk), the creation of the USB memory stick is completed. Wait patiently (even if it seems like nothing is happening): The copy operation is complete when the text “Install media now available at…” appears in the last terminal window, followed by the user prompt (user name followed by a $ sign). please remember It may take a few minutes (Depending on the speed of the USB stick used). On newer Macs, a window should appear requesting permission to access the USB stick: Accept the access request.
Once the operation is complete, you can close the Terminal window and eject the created USB stick from macOS Finder.
Restart your computer
At the end of the drive creation process, the USB memory stick is ready. On a Mac with an Intel CPU It can be started by restarting the computer, leaving the stick in the USB port, holding down the Option (Alt) key, and selecting the stick as the boot disk if necessary.
USB charging can be slow: be patient (We reiterate, this depends on the speed of the external device).
Wait patiently for the operating system to load from the USB, then use your mouse/trackpad to select “Install macOS Sequoia”. After a few minutes, the macOS Recovery screen will appear. Fill in the password of the administrator user, click “Next”, enter the password of the administrator user: a window will appear, in which you can select “Disk Utility” to initialize the Mac’s internal HDD/SSD, exit Disk Utility and Start a clean installation of macOS Sequoia (perhaps it’s redundant to remember this, but apparently initialization destroys everything: If there is important data on the disk, please back it up first).
Sui Mac vs. CPU Apple Silicon (M1 and below) Booting a computer from a stick is a slightly complicated but possible process:
- Shut down your Mac
- Insert the flash drive into the USB/USB-C port
- Turn on your Mac by holding down the power button and release it only when you see the words “Loading startup options.”
- Release the button and when the splash screen appears, select the Install macOS Sequoia icon and click Continue
At this point it appears you can proceed with installing macOS Sequoia.
We remind you of our previous article on earlier versions of the operating system.
