The installer will delete itself when you install the operating system, but it can be re-downloaded if necessary. If you want a GUI, take a look at Ben Slaney's Install Disk Creator from MacDaddy.There are other apps out there that do this, but this one is quick and simple. If you want to use this USB installer with newer Macs as they are released, you'll want to periodically re-download new Catalina installers and make new install drives. Apple rolls support for newer hardware into new macOS point releases as they come out, so this will help keep your install drive as universal and versatile as possible. Install Disk Creator will automatically detect macOS installers on your drive and suggest one for you, displaying its icon along with its path. You can navigate to a different installer if you want, and you can also pick from all the storage devices and volumes currently connected to your Mac through the drop-down menu at the top of the window. Once you're ready to go, click "Create Installer" and wait. A progress bar across the bottom of the app will tell you how far you have to go, and a pop-up notification will let you know when the process is done. This should only take a few minutes on a USB 3.0 flash drive in a modern Mac, though using USB 2.0 will slow things down. The Install Disk Creator is just a wrapper for the terminal command to create macOS install disks, so if you’re comfortable formatting your USB drive yourself and opening a Terminal window, it’s almost as easy to do it this way. Sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled Linux bootxchanger mac os#Īssuming that you have the macOS Catalina installer in your Applications folder and you have a Mac OS Extended (Journaled)-formatted USB drive (which is to say, HFS and notAPFS) named "Untitled" mounted on the system, you can create a Catalina install drive using the following command. The command will erase the disk and copy the install files over. Give it some time, and your volume will soon be loaded up with not just the macOS installer but also an external recovery partition that may come in handy if your hard drive dies and you're away from an Internet connection. If you would like to create an install drive for a macOS version other than Catalina, just tweak the paths above to refer to Mojave or High Sierra instead. Whichever method you use, you should be able to boot from your new USB drive either by changing the default Startup Disk in System Preferences or by holding down the Option key at boot and selecting the drive. Once booted, you'll be able to install or upgrade Catalina as you normally would. Owners of a PowerPC Mac can use the older version – 1.0.4 – which is available direct from the software publisher.You can also use Safari, Disk Utility, or Time Machine from the recovery partition to restore backups or troubleshoot.Before the release of Chrome OS by Google and Azerus by Microsoft. There's even a folder of suitable Apple-esque logos bundled with the program to get you started. Don't like what you've done? Easy, restart the program and click Default Image to return things to normal. Select a different background colour if you like, then click Apply before rebooting to see the effects of your customisation. Most importantly, the program is simplicity itself to use: launch it, then just drag your chosen image on to the Apple logo to replace it. BootXChanger can also be used to change the background colour too – note that transparent images will be re-coloured with the currently selected background prior to being inserted, so work on a copy if this is the case. You can replace the Apple logo with something of a similar size, or try your luck with a full-screen image – it may or may not work depending on your flavour of Mac. Take the grey Apple logo that appears when you start your Mac for instance: bit boring? Prefer something different? No problem: BootXChanger exists to simplify the process of changing that boring background for something a bit more flash or personal. The fact is, just about any part of your OS can be tweaked to suit your personal tastes – the only question is, how awkward is it to do by hand, and is there a tool out there that can do the hard work for you? Sure, you change the desktop background easily enough, but what about those areas of your system that your manufacturer prefers to keep for itself? One of the challenges when customising any computer is knowing how far you push the personalisation envelope.
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