possible to remount readonly?

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  • Last Post 14 April 2020
Daniel Drucker posted this 14 April 2020

On Linux, I can, without unmounting, remount a partition readonly, e.g.

# mount -o remount,ro /something

and then later, again without unmounting

# mount -o remount,rw /something

Is it possible to do this on MacOS with a Promise RAID mount? I get:

mount: /Volumes/something/: unknown special file or file system.

R P posted this 14 April 2020

Hi Daniel,

The /Volumes folder is a special device managed by macOS, it's not a good idea to try and do things there.

That being said, you can mount to another folder somewhere where you have proper premissions. Providing of course that macOS will allow you to umount in the /Volumes folder, but I think dragging it into the trash would accomplish that.

You might want to note the device being mounted first with the mount command, then you should be able to manually mount the device somewhere else.

I don't know if the macOS mount has a remount option, but  you should be able to check the man page with 'man mount'

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