![]() Disabled in macOS Mojave or later.Įject (⏏) or F12 or mouse button or trackpad button: eject removable media, such as an optical disc. ![]() To use the default boot image on the server, press and hold Option-N instead.Ĭommand-S: start up in single-user mode. N: start up from a NetBoot server, if your Mac supports network startup volumes. Or use Option-D to start up to this utility over the internet. Option (⌥) or Alt: start up to Startup Manager, which allows you to choose other available startup disks or volumes.ĭ: start up to the Apple Diagnostics utility. macOS Recovery installs different versions of macOS, depending on the key combination you use. Or use Option-Command-R or Shift-Option-Command-R to start up from macOS Recovery over the internet. Then shut down or restart and try again.Ĭommand (⌘)-R: start up from the built-in macOS Recovery system. If you’re using Boot Camp to start up from Microsoft Windows, set Startup Disk preferences to start up from macOS instead. Backup and recovery tools are either an integrated component of a relational database system. ![]() Some key combinations won't work if your Mac is using a firmware password. James Thompson Mon, 12:34:57 -0800 Mon, 22. If you're using a keyboard made for a PC, such as a keyboard with a Windows logo, try a keyboard made for Mac. Or use your built-in keyboard or a wired keyboard. When prompted for a login:, enter the user name for the administrator account. If you know the user name and password for an administrator account, the enter the commands given below to become the root user. If you're using a wireless keyboard, plug it into your Mac, if possible. This line gives the administrator accounts the ability to use the sudo command. Some keyboards have a light that flashes briefly at startup, indicating that the keyboard is recognised and ready for use. You may need to wait a few seconds before pressing the keys to give your Mac time to recognise the keyboard as it starts up. Then press and hold the key combination after pressing the power button to turn on your Mac. If your Mac won't shut down, press and hold the power button for up to 10 seconds until your Mac turns off. If you can't get a key combination to work when restarting your Mac, shut down your Mac first. Press and hold all of the keys in the given combination together, not one at a time. Guidelines for using these key combinations If you're not using a Mac with Apple silicon, you're using an Intel-based Mac. Release the power button when you see the startup options screen, which displays your startup disks and a gear icon labelled Options.įrom this window, you can start up from a different disk, start up in safe mode, use macOS Recovery and more. Turn on your Mac and continue to press and hold the power button as your Mac starts up. On a Mac with Apple siliconįind out if you have a Mac with Apple silicon Just make sure you kill the shell when your task is completed a shell with this much power is dangerous.Find out about the Mac features and tools you can access by holding down one or more keys as your Mac starts up. (Note that the prompt switches from $ to #.) # ls -al /home/someone_else/.bash_pr The ls command can now be run without the sudo predicate, and autocomplete works. To temporarily run with greater permissions, you can start a new shell with sudo. The command might as well be: $ ls -al /home/someone_else/.bash_prīecause permission to search that directory is lacking, the command completion does nothing. ![]() That is because the bash completion is operating before sudo gets invoked. $ sudo ls -al /home/someone_else/.bash_pr # does not complete However, if you try to use filename completion, the tab completion does nothing. $ sudo ls -al /home/someone_else/.bash_profile The following ls command will work because sudo runs the ls command with the required permission. Suppose you want the listing for some other user's. If everything else is working, but just certain filename completion (autocomplete) attempts fail, it might be that you lack permission to search a directory that is a component of the path.
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