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How to mount a backup drive read only?

rated 0 times [ 3] [ 0] / answers: 1 / hits: 3816 / 2 Years ago, thu, january 20, 2022, 6:49:28

I have a backup external USB drive.

I wonder how to tell the system to always mount it read only without explicitly telling him everytime

sudo mount -o ro /dev/sde1 /media/backup

Note: My drive is not always attached to the system. I only attach it when I need something important from the backup. So I don't want't to edit ftsab and when booting up it tells me that it has failed to mount drive because it doesn't exist

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peafowkes

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answered 2 Years ago eaderitable · Accepted Answer

You can still set this up using fstab, just don't set it to be mounted automatically. Get the UUID of your drive (you can use blkid for that) and add this line to your /etc/fstab:

UUID=123-ABC   /media/backup  ntfs   ro,noauto,users   0   0

Change the UUID for whatever your's is and the ntfs to your filesystem. Now, the drive won't be mounted automatically (noauto) but it can be mounted manually by a normal user with:

mount /media/backup

To make this work automatically in nautilus, use this line in /etc/fstab instead (thanks @Braiam):

UUID=123-ABC /media/backup auto noauto,nosuid,nodev,nofail,x-gvfs-show,ro 0 0