If you’re having problems with your hard drive or need to make changes to it, Disk Utility in OS X Mountain Lion is a good place to start. Start by clicking a disk or volume in the column on the left and then click one of the five tabs.
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Disk Inventory X is a disk usage utility for Mac OS X. It shows the sizes of files and folders in a special graphical way called ' treemaps '. If you've ever wondered where all your disk space has gone, Disk Inventory X will help you to answer this question. Disk utility free download - Disk Drill, Apple iDisk Utility, Disk Inventory X, and many more programs. Mar 12, 2020 On a Mac that is compatible with El Capitan, open the disk image and run the installer within, named InstallMacOSX.pkg. It installs an app named Install OS X El Capitan into your Applications folder. It installs an app named Install OS X El Capitan into your Applications folder.
First Aid tab of Disk Utility
If you suspect that something’s not quite right with your Mac, the First Aid portion of Disk Utility should be among your first stops. Use First Aid to verify and (if necessary) repair an ailing drive.
To use it, click the First Aid button on the left side of the Disk Utility window. Click a volume’s icon, and then click Verify.
You get information about any problems that the software finds. If First Aid doesn’t find any problems, you can go on your merry way, secure in the knowledge that your Mac is A-okay. If verification turns up trouble, click Repair to have the problem fixed. You can also use First Aid to fix disk-permission problems.
You won’t be able to use the copy of Disk Utility in your Applications/Utilities The zoo race mac download. folder to repair your OS X boot disk. To do that, you must reboot from Mountain Lion’s Recovery Disk or another bootable disk.
![Utility Utility](/uploads/1/2/6/7/126700751/459408354.png)
You can’t use Disk Utility First Aid to fix a CD or DVD, nor can you use it to fix most disk image files. These disks are read-only and can’t be altered.
The Erase tab in Disk Utility
Use Erase to format (completely erase) any disk except the current startup disk.
When you format a disk, you erase all information on it permanently. Formatting can’t be undone — so unless you’re absolutely sure this is what you want to do, don’t do it. Unless you have no use for whatever’s currently on the disk, make a complete backup of the disk before you format it.
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If the data is critical, you should have at least two (or even three) known-to-be-valid backup copies of that disk before you reformat.
Disk Utility’s Partition tab
Use this tab to create disk partitions (multiple volumes on a single disk). OS X treats each partition as a separate disk. When you select an item in the column on the left, you see only a partition tab when you select a disk, such as the 500.11GB Hitachi and Seagate or 16.01GB Verbatim drives here.
Be careful here. While some adjustments can be made to partitions without loss of data, not all adjustments can. You’ll be warned if what you’re about to do will permanently erase your data.
By the way, you won’t see a Partition tab if you select a volume or partition — PussInBootsMBP, Lion HD, Fast ’n’ Small, and Tuff ’n’ Tiny in the figure — instead of a disk (500.11GB Hitachi, 500GB Seagate, and 16.01GB Verbatim). Makes sense when you think about it.
The RAID tab in Disk Utility
Git generate ssh rsa key. By using Redundant Array of Individual (or Independent) Disks (RAID), you can treat multiple disks as a single volume, which is sort of the opposite of partitioning.
Disk Utility’s Restore tab
Use the Restore tab to restore your Mac to factory-fresh condition from a CD-ROM or disk-image file. In most cases, you install new software on your Mac from the Mac App Store, a CD or DVD or the Internet. Software vendors typically use an installer program that decompresses and copies files to their proper places on your hard drive. Download app store mac os x high sierra. After you’ve installed the software, you’re back in business.
Auto cad for mac download link. Apple’s variation on this theme is a humongous file called the disk image — everything you’d normally find on a disk, without the disk. These days, more developers are adopting the disk-image format for their downloadable installers and updaters.
When mounted on your Desktop (more on what mounting means in a minute), a disk image looks and acts just like a real disk. You can open it and see its contents in a Finder window, copy files from its window to another disk, drag it to the Eject button to remove it from your Desktop — go wild.
To make a disk image appear on your Desktop, you double-click the image file. At that point, the Disk Utility application takes over and puts an icon (which for all intents and purposes looks like a disk) on your Desktop.
Disk Utility not only mounts images when you double-click them, but also lets you create your own disk-image files and burn them onto CD-ROMs and DVD-ROMs.
Because you can transfer disk images via the Internet — and because they act just like disks — they’re great substitutes for CD-ROMs and other disk-based software installers. A software maker can create both a CD version of an installer and a disk image that can be downloaded.
Free download music downloader for mac. These advanced steps are primarily for system administrators and others who are familiar with the command line. You don't need a bootable installer to upgrade macOS or reinstall macOS, but it can be useful when you want to install on multiple computers without downloading the installer each time.
Download macOS
Find the appropriate download link in the upgrade instructions for each macOS version:
macOS Catalina, macOS Mojave, ormacOS High Sierra
Installers for each of these macOS versions download directly to your Applications folder as an app named Install macOS Catalina, Install macOS Mojave, or Install macOS High Sierra. If the installer opens after downloading, quit it without continuing installation. Important: To get the correct installer, download from a Mac that is using macOS Sierra 10.12.5 or later, or El Capitan 10.11.6. Enterprise administrators, please download from Apple, not a locally hosted software-update server.
Installers for each of these macOS versions download directly to your Applications folder as an app named Install macOS Catalina, Install macOS Mojave, or Install macOS High Sierra. If the installer opens after downloading, quit it without continuing installation. Important: To get the correct installer, download from a Mac that is using macOS Sierra 10.12.5 or later, or El Capitan 10.11.6. Enterprise administrators, please download from Apple, not a locally hosted software-update server.
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OS X El Capitan
El Capitan downloads as a disk image. On a Mac that is compatible with El Capitan, open the disk image and run the installer within, named InstallMacOSX.pkg. It installs an app named Install OS X El Capitan into your Applications folder. You will create the bootable installer from this app, not from the disk image or .pkg installer.
El Capitan downloads as a disk image. On a Mac that is compatible with El Capitan, open the disk image and run the installer within, named InstallMacOSX.pkg. It installs an app named Install OS X El Capitan into your Applications folder. You will create the bootable installer from this app, not from the disk image or .pkg installer.
Use the 'createinstallmedia' command in Terminal
- Connect the USB flash drive or other volume that you're using for the bootable installer. Make sure that it has at least 12GB of available storage and is formatted as Mac OS Extended.
- Open Terminal, which is in the Utilities folder of your Applications folder.
- Type or paste one of the following commands in Terminal. These assume that the installer is still in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using. If it has a different name, replace
MyVolume
in these commands with the name of your volume.
Catalina:*
Mojave:*
High Sierra:*
El Capitan: - Press Return after typing the command.
- When prompted, type your administrator password and press Return again. Terminal doesn't show any characters as you type your password.
- When prompted, type
Y
to confirm that you want to erase the volume, then press Return. Terminal shows the progress as the bootable installer is created. - When Terminal says that it's done, the volume will have the same name as the installer you downloaded, such as Install macOS Catalina. You can now quit Terminal and eject the volume.
https://clevergarage.weebly.com/blog/download-tivo-desktop-plus-for-mac. * If your Mac is using macOS Sierra or earlier, include the
--applicationpath
argument, similar to the way this argument is used in the command for El Capitan.Use the bootable installer
After creating the bootable installer, follow these steps to use it:
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- Plug the bootable installer into a compatible Mac.
- Use Startup Manager or Startup Disk preferences to select the bootable installer as the startup disk, then start up from it. Your Mac will start up to macOS Recovery.
Learn about selecting a startup disk, including what to do if your Mac doesn't start up from it. - Choose your language, if prompted.
- A bootable installer doesn't download macOS from the Internet, but it does require the Internet to get information specific to your Mac model, such as firmware updates. If you need to connect to a Wi-Fi network, use the Wi-Fi menu in the menu bar.
- Select Install macOS (or Install OS X) from the Utilities window, then click Continue and follow the onscreen instructions.
Learn more
For more information about the
createinstallmedia
command and the arguments that you can use with it, make sure that the macOS installer is in your Applications folder, then enter this path in Terminal:Catalina: Download stick of truth mac.
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High Sierra:
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El Capitan: