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bless:tldr:eaf0c
The bless
command in macOS is used to set the startup disk and/or bless a specific folder or file to be used for booting.
Now let's break down the given command:
bless --folder ${-Volumes-Mac OS X-System-Library-CoreServices} --bootinfo --bootefi
-
bless
- The command itself. -
--folder
- Specifies that a folder should be blessed instead of a specific file. -
${-Volumes-Mac OS X-System-Library-CoreServices}
- This is the path to the folder that will be blessed.${-Volumes-Mac OS X-System-Library-CoreServices}
appears to be an incomplete or improperly formatted command substitution. A proper command substitution should start with a dollar sign followed by an opening parenthesis, without any dashes. We could assume that it is attempting to reference a specific folder path.- The given path:
-Volumes-Mac OS X-System-Library-CoreServices
seems to contain spaces and may not be a valid path.
-
--bootinfo
- Specifies that boot information should be updated and output by the command. -
--bootefi
- Specifies that the EFI (Extensible Firmware Interface) boot code should be updated and output by the command.
In summary, it seems that the given command is attempting to bless a folder with an incomplete or incorrect path. It also instructs the bless
command to update boot information and the EFI boot code.