how to change permissions on usb flash drive mac

Type ls to list contents of Volumes folder.Type cd /Volumes to switch current folder to Volumes where Mac OS lists all mounted drives.Type diskutil mount /dev/disk1s2 (Disk 1, Partition Scheme 2 – may be different on your Mac) to gain read/write access on that disk.Type diskutil list to view available drives.Commands can also be typed via Terminal app when OS X is running.

Start in Single User Mode by holding down Command-S when starting the Mac.Method 3 Mac File Transfer via Single User Mode / Command Line If you do not specify “old iTunes” as the target directory, all of the files in the source “old iTunes” will be splattered all over the “sony samsung” destination.Ī command that will preserve extended attributes and do the same thing as above is the ditto(1) command:ĭitto ~/Desktop/”old iTunes” /Volume/”sony samsung/old iTunes” Otherwise you will get an error message that “old iTunes” is a directory (not copied). If that “old iTunes” is a folder, then the following will copy the folder and its cotents to ~/Volume/”sony samsung.”Ĭp -pr ~/Desktop/”old iTunes” /Volume/”sony samsung/old iTunes” The UNIX (command-line) cp(1) command neither protects extended attributes, or copies recursively, by default. For example, if i have a folder on the desktop name “old iTunes” and I want to copy it to a flash drive call “sony samsung” would the command be cp ~/Desktop/old iTunes ~/Volume/sony samsung Hi, so I’ve been having trouble copying files to a external drive and someone suggested that I try using the terminal to see does that work. See if that partition is now accessible.Method 2 How to copy files to flash drive using mac terminal If Everyone is No Access then change it to read-only. If any of the user entries is shown as No Access, then change it to read/write. If the 'Ignore permissions, etc.' box is checked then uncheck it. If any of the displayed items - owner, group, or everyone - is shown as No Access and the box to 'Ignore permissions, etc.' is checked then do this:Ĭlick on the lock icon in the lower right corner. At the bottom is the Ownership and Permissions section. What was this flash drive used for originally? Does it have any sort of write protection slider on the outside to lock the drive in a read-only mode?Ĭan you select the disk icon on the Desktop for the 3.1 GB device? If you can then select the icon and press COMMAND-I to open the Get Info window. Are there two different USB drives? That's certainly what it appears to be.

How to change permissions on usb flash drive mac