Reading/Writing Bootcamp Partition

zed1291

macrumors regular
Original poster
Jun 4, 2010
189
218
NYC
Prior to installing macOS 10.12.5 I had enabled reading AND writing my Bootcamp partition (formatted NTFS) with terminal.

For those who aren't familiar
sudo nano /etc/fstab [ENTER]
LABEL=BOOTCAMP none ntfs rw,auto,nobrowse
[control-o]
[ENTER]
[control-x]
[ENTER]

Then use "open /Volumes" to view Bootcamp and you have read/write support.

This had worked flawlessly for multiple Sierra iterations. Last night I updated to 10.12.5. Afterwards, the Bootcamp partition was unable to mount while I was booted to macOS. If I held option down during start up, I was able to select Windows and successfully boot. While running macOS, I opened Disk Utility, the BootCamp partition was greyed out and I was unable to mount from there. The issue persists in a guest user. When I booted to the recovery partition I saw that copy of Disk Utility could mount it.

Thats when I decided to fire up /etc/fstab again and disable read/write to Bootcamp. After restart, the Bootcamp partition successfully mounted as read only.

Now here is where I'm stuck, I'm trying to re-enable read/write to Bootcamp and the terminal command no longer appears to be working. I'm trying to be able to confirm that either 10.12.5 disables this functionality or maybe I'm just doing something wrong.

Anyone else in the same or a similar issue? I realize this is a very niche issue, the amount of Bootcamp users is small, and the amount of people using this method to read/write NTFS is even smaller, and then those that do that also have updated to 10.12.5 makes the amount of people in my situation probably really really small. Any support would be appreciated.
 

Shirasaki

macrumors G4
May 16, 2015
10,011
3,893
I could not believe Mac OS X has built in NTFS read write support before seeing this post. I bought third party software to enable such support.
And due to a recent disastrous build of iTunes (I remember it is 12.6), I plan to not update to 10.12.5 before iTunes is useable again. I could not help you out much on this one. I guess, apple might have disabled this feature for good.
 

zed1291

macrumors regular
Original poster
Jun 4, 2010
189
218
NYC
I could not believe Mac OS X has built in NTFS read write support before seeing this post. I bought third party software to enable such support.
And due to a recent disastrous build of iTunes (I remember it is 12.6), I plan to not update to 10.12.5 before iTunes is useable again. I could not help you out much on this one. I guess, apple might have disabled this feature for good.
It's not really a macOS feature as much as a Unix one. Apple didn't take advantage of Unix's NTFS support but this is still leftover because macOS was built using Unix. This is why I'm assuming I'm doing something wrong, cause Apple would have needed to intentionally disable this (doesn't make sense why they would).
 
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