MacOS Recovery

macOS Recovery, also known as macOS Base System and formerly known as Mac Recovery Mode, is an option available to users of recent versions of macOS or OS X in case a problem renders their Mac unbootable.How to reinstall macOS, Apple Support. 2021-10-25.How to use Mac Recovery Mode by Karen Haslam, Macworld UK. 2021-02-02. 
==Starting up in recovery mode==
*Macs with Intel processors: Hold down the command and R keys during startup until the Apple logo appears and then wait for the onscreen options.Use macOS Recovery on an Intel-based Mac, Apple Support. Accessed 2021-10-25.
*Macs with Apple processors: Continue holding down the power button during startup until the startup options appears and then click the gear icon labeled "Options".Use macOS Recovery on a Mac with Apple silicon, Apple Support. Accessed 2021-10-25.
==Recovery options==
When invoked, the Mac will either load recoveryOS from a hidden recovery partition (or volume) on the startup drive,Cloning Apple's Recovery HD partition, Bombich Software. 2020-12-12. or download it over the Internet from an Apple server to bring up the following options:Revive and restore Apple devices, Apple Support. Accessed 2021-10-25.
*Restore from a Time Machine backup.
*Reinstall macOS on the startup volume.
*Safari, to browse Apple Support and get help online.
*Disk Utility, to repair or erase a drive.
Earlier versions of the mode included the following additional utilities:Mac OS X Lion Adds Recovery Partition Support by David W. Martin, Cult of Mac. 2011-02-25.
*Firmware Password Utility
*Network Utility
*Terminal
*Startup Disk
==History==
Mac Recovery Mode was first introduced in 2011 with Mac OS X 10.7 (Lion) and was stored in a hidden HFS Plus partition. The mode would bring up a window of options, titled "Mac OS X Utilities", later "OS X Utilties" and "macOS Utilities", before being replaced by a simpler untitled palette. Starting with the introduction of APFS in macOS High Sierra (10.13) in 2017, the "Recovery HD" was stored in a hidden volume instead of a partition.
==References==
==See also==
*Internet Recovery, if the recovery volume is unavailable or corrupted.
*Recovery mode, for iOS and iPadOS devices.
==External links==
*Intro to macOS Recovery at Apple Support
**How to reinstall macOS (2022-12-13)
**If you can't start up from macOS Recovery (2022-10-24)
 
Category:Troubleshooting