Disable unsafe USB removal warning on OS X

Solution 1:

Unlike others may say, "creating an arc across the pins" can not damage your drive; the power pins are offset from the data pins exactly to prevent this from happening.

The reason you have to eject a USB disk or SD card is that OS X mounts it to a path like any *nix system and might not flush the buffers before you properly dismount the device. You could end up with partial data on the device or errors in the FS.

Windows gets around it by defaulting to flushing the buffers on removable devices, but this results in slower access to the device. For similar behavior, you need a way to tell it to write fully to the drive everything sent to it. I don't know enough about OS X internals to tell you if the FAT driver is capable of that.

Solution 2:

It's never a good idea to rip out a drive without disconnecting it properly, the OS may be using it at the time you pull it even if you're not explicitly using it; the OS has to keep track of drives and paths and sizes, etc.

Also there may be some other power or current running to the drive perhaps the drive it's self it asking for power to run, say, an LED or what have you, or just a "micro brain" inside the drive itself and if you pull the plug it can create an arc across the pins that may not only damage your drive but your USB socket itself, rendering it useless for the future (meaning you'll need to get it fixed).