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How to Boot in single-User or Verbose Mode in Mac OS X.

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Single user mode is a mode in which a multiuser computer operating system boots into a single superuser. It is mainly used for maintenance of multi-user environments such as network servers. Some tasks may require exclusive access to shared resources, for example running ppanicfsck on a network share.You can use key combinations to start up the computer in either single-user mode or verbose mode. These may be used for troubleshooting or software development. "Single User" is a boot mode, you actually tells the unix shell that the OS should load only prompt (no GUI), and the local console login is the only login available (can’t be logged on from the network), Sometimes the system requires an administrative actions by the administrator, such as disk checkup, partition altering, drivers uninstalling, backups, etc. At this delicate tasks you don’t want other users to touch/create/remove/use files, hardware, CPU, and use resources. this is why you enter into single user mode.

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Procedure to enter in Single User Mode.
* Restart your computer
* Continuously press F8 until you see the Darwin boot prompt
* write "-s" without the quotation marks and press you will soon reach a prompt
To exit single-user mode type reboot  then press Return.

Procedure to enter in Verbose Mode.

* Restart your computer

* Continuously press F8 until you see the Darwin boot prompt

* write "-V" without the quotation marks and press you will soon reach a prompt

Verbose mode exits automatically when the computer’s startup process progresses sufficiently and the blue screen appears

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Tags: Mac OS X, Recovery., Single User, Verbose Mode

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