Changing Permissions on an External SSD/HDD With Mounty

[Ryan Charman]

Hi,

I originally posted this issue on r/macos and got directed to bring this issue up with the MacFuse community. I recently just got a new Macbook for my study and I have a bit of a technical problem. I use Windows at home but a Mac for my study (just while on the go) and I have a couple external SSDs that I use to take files on the go (I don't overly like cloud storage), they are formatted NTFS and I have been able to use MacFuse with Mounty and NTFS-3G to be able to use them on my Mac. It works great however, one of them refuses to remount with read/write privileges even though it is formatted the exact same way as the other and the permissions are all set the same when I select "Get info". It doesn't allow me to modify the privileges either. Both drives are Asus ROG Strix Arions and have Samsung 970 Evo Plus drives inside them. Both have been formatted on the same PC in the same way (with me even trying for the one not working a full clean using Diskpart on Windows) I was wondering if there is a work around to this. I am comfortable using the terminal if need be. I have attached screenshots to help, External SSD 1 is the one that works fine, External SSD 2 is the one I am having issues with. I understand this may be a bit more of an obscure issue and that someone here may not be able to help so even a point in the right direction would be appreciated. I have done some googling but haven't been able to find a concrete answer as to why this isn't working or anything I could try. It works fine on my PC, having full read/write access. Please don't suggest formatting them as exFAT or MacOS Extended Journaled (exFAT isn't as optimised as I would like for both Windows and Mac and I would still like to be able to use it on my Windows PC).

Thanks

[Cristian Marius]

Hi Ryan,

I am not familiar with `mounty`, but while developing custom filesystems on macFUSE, I have made extensive use of the mount flag `allow_other`
https://github.com/macfuse/macfuse/wiki/Mount-Options

Why I did it?
I have noticed that some applications had permission access on to my FS, as by default it is mounted just under the current user.
`allow_other` allows other users (or apps that run under another users umbrella) to access the filesystem.

Maybe you can try to pass this option to `mounty`, or add current user privilege to the external ssd; (I think it is done through get info, so your problem blocks you for this path).

All the best,
Marius

[Cristian Marius]

small correction:
Try to add the external drive with problems as belonging to the current user, before mounting it with mounty.
or
Try to pass "allow_other" option

[Ryan Charman]

Hi Marius,

Thanks for your suggestion, I've tried using the commands that are on the github page but terminal is saying that the vfs part is an unknown oid. I wouldn't be surprised if I have done something wrong here though.

By the way, Mounty is just a front end for the ntfs-3g driver and MacFuse to allow you to remount it using a gui. I don't think its a Mounty issue as my other drive remounts using Mounty just fine but I can also make this post in their respective community to see if anyone there has any suggestion

[Cristian Marius]

Hi Ryan,

Sorry for the late reply.

I think you are already part of the admin group.

What I was trying to say with `allow_other` was to pass it as a mount option to macfuse

./myfusefs mountpoint -o allow_other

I guess that for ntfs-3g it's something like this (I copied from google search the command, I think it was AI generated, I did not check it); the paths there are w/e; I just wanted to show -o allow_other

ntfs-3g /dev/diskXsY /Volumes/NTFS -o allow_other

 All the best,
 Marius