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external lacie drive mounting read only need read write on boot up

My thunderbolt lacie drive mounts read only when I boot but if i dismount and mount in disk utility it mounts with read write custom privs. Now its Monterey on a trashcan. The lacie is a 4tb external adfs nothing fancy.


is there a file you can edit like in unix where drives are mounted and put in the stuff you want? or does this need something else.

Mac Pro, macOS 12.7

Posted on Oct 14, 2024 8:45 AM

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5 replies

Oct 18, 2024 11:08 AM in response to rocketo625

rocketo625 wrote:

Yup i sure did.

the question is: in unix there is a mounting file called fstab. how is this done in macos?

Yes, but it won't help you until you can actually mount drive as read & write through other means.


You need to figure out why the drive is mounting as read only first. If you cannot mount it read only through Disk Utility or the command line, then the fstab file will not help...in fact it will just complicate the whole troubleshooting process.


The most common reason is you are using the NTFS file system on the external drive.....macOS only has read-only support for NTFS using the built-in driver. If you want to write to an NTFS volume, then you need to use a third party NTFS driver. Another reason would be you have some third party software installed which is interfering with the normal operation of macOS and marking the drive as read-only for some reason. There could be other reasons such as permissions issues, or if it is a macOS boot drive, then the root of the drive would be inaccessible, or maybe the drive has a hardware issue or is configured to be read-only through a hardware setting on the drive.


What is the exact make & model of this external drive?


File system on the external drive? How was that file system created?


Is it used for Time Machine backups? Or as a backup using some third party apps?

external lacie drive mounting read only need read write on boot up

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