6/20/2023 0 Comments Disk inventory x for catalina![]() macOS will automatically remove them when the system needs more free-space. Normally, you don’t need to remove the purgeable file form the storage space. Abandoned files and cache which are left after uninstalling an application.If a local file is synced with iCloud, then the local file is considered as purgeable.Old files which are not used for a long time.Until then, these snapshot files are classified as purgeable files. These files are automatically purged when the backup disk is accessible by time machine. If the backup disk is not accessible by time machine, it uses the local storage to store the snapshots.Here is the list of few of the major contributors of purgeable space: Purgeable storage is the space occupied by files in the drive which were identified by the macOS system as removable in case if it needs more free-space. I would like to share what I learned and what I did to free up some of the space in my laptop. On searching, I figured out the details of purgeable storage and how to reduce them. You can also use Safari, Disk Utility, or Time Machine from the recovery partition to restore backups or troubleshoot.After getting the answer for difference in free space shown in different windows, I got couple of more questions: Once booted, you'll be able to install or upgrade Catalina as you normally would. 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. 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. 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. The command will erase the disk and copy the install files over. ![]() ![]() Sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled Assuming 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 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. 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. 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. Once you're ready to go, click "Create Installer" and wait. 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. Install Disk Creator will automatically detect macOS installers on your drive and suggest one for you, displaying its icon along with its path. 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. 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. There are other apps out there that do this, but this one is quick and simple. If you want a GUI, take a look at Ben Slaney's Install Disk Creator from MacDaddy.The installer will delete itself when you install the operating system, but it can be re-downloaded if necessary. The macOS 10.15 Catalina installer from the Mac App Store (in High Sierra or older macOS versions) or the Software Update preference pane in Mojave.A USB 3.0 drive will make things significantly faster, but an older USB 2.0 drive will work in a pinch 8GB drives worked for Mojave and older versions of macOS, but the Catalina installer is just a little too large to fit. A 16GB or larger USB flash drive or a 16GB or larger partition on some other kind of external drive.We've created a USB stick from both Mojave and Catalina, but your experience with other versions may vary. A Mac that you have administrator access to.Luckily, it's not hard to make one-either with a handy graphical user interface or some light Terminal use. Further Reading macOS 10.15 Catalina: The Ars Technica reviewĪpple hasn’t shipped operating systems on physical media in a full decade, but there are still good reasons to want a reliable old USB stick for macOS Catalina.
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