I have a Mac Book Pro. When I attach my external hard drive to it, I can only read rights. How to I get read and write rights?
External Hard Drive – Get Write Access Rights
external-disk
Related Solutions
Yes - you should be able to backup your external drive with the photos by removing it from the "Exclude" tab in the Time Machine pane in System Preferences (in this case the external drive is FCPX):
As Nancy Casas also mentioned, a disk in gray will have to be reformatted for Mac, while one in black will not.
To open the app from an external disk, you have to refer to it explicitly using a Terminal command:
open /Volumes/<volume_name_of_external_disk>/<path_to_application>/Android\ Studio.app
Having never used Android Studio, I don't know if there is a space between 'Android' and 'Studio' in the app name. If there is, the back-slash character in the open command is required to delimit the space character.
Ex: open /Volumes/ExternalDisk/Applications/Android\ Studio.app
Best Answer
A common cause of this would be the external drive being formatted in NTFS.
If your external hard drive is NTFS formatted (a common Windows format), MacOS X can only mount it read-only. There are third-party add-ons that would allow a Mac to write to a NTFS, but out of the box, Macs can read but not write to this format.