How to prevent drive from auto mounting at startup?

PicnicTutorials

macrumors 6502a
Original poster
Dec 29, 2013
546
13
I have a CCC Bootable copy on a connected external drive and I don't want the bootable partition mounting when I start my computer. The only solutions I've been able to find are those messing with in/with Terminal and seem overly complicated. There has to be a simple way?
 

roadkill401

macrumors 6502
Jan 11, 2015
438
83
I have been told by apple that there is no method to a locally attached (be it internet or external) drive not mount inside of OSx on startup. As well, I have been told that there is no method either of having remote network drives get automatically mounted on startup. I guess this is just one of those limitations of Apple OS.
 

Samuelsan2001

macrumors 604
Oct 24, 2013
7,694
2,121
I have a CCC Bootable copy on a connected external drive and I don't want the bootable partition mounting when I start my computer. The only solutions I've been able to find are those messing with in/with Terminal and seem overly complicated. There has to be a simple way?
Buy a cheap second drive for the Bootable copy then unplug it when required.
 

Thessman

macrumors regular
Dec 8, 2005
153
31
GR
I have been told by apple that there is no method to a locally attached (be it internet or external) drive not mount inside of OSx on startup. As well, I have been told that there is no method either of having remote network drives get automatically mounted on startup. I guess this is just one of those limitations of Apple OS.
See this discussion:
https://forums.macrumors.com/threads/hiding-drives-on-the-desktop.1862306/#post-21123046

here is the summary:
. Open the Terminal utility (in the /Applications/Utilities/ folder)
. Edit the fstab file by running the following command (supply your password when prompted):
sudo pico /etc/fstab

. Create a new line at the end of the file that looks like the following (note: replace "NUMBER" with the full UUID string you copied from Disk Utility):
UUID=NUMBER none hfs rw,noauto
. Save the file by pressing Control-O, followed by Control-X to quit the editor.
 

roadkill401

macrumors 6502
Jan 11, 2015
438
83
Thanks. I will give that a try. Being a newly converted Mac user, I have yet to figure out the full potential of this new Apple beast that I have just got.
 
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