How to mount a hard disk as read-only from the terminal
I have searched google, I’ve searched this website, I’ve searched using various terms, phrases, using quotes and without quotes and I cannot find the answer to this seemingly easy thing to do.
How do you mount a hard disk from the command line as read-only? I don’t want or need a link to the man page, I want the exact thing I will have to type in if the following is true:
- disk to mount is on /dev/sda
- it is 2 TB -it is critical that I mount it read-only and not read-write. Very critical.
- I’m doing it from a live ubuntu cd so I have no business to edit the fstab or any file for that matter
You do not mount
/dev/sda, that refers to the entire disk. You mount
/dev/sda1 or whatever partition you want.
Make a mount point, call it anything you like.
sudo mkdir /media/2tb
sudo mount -o ro /dev/sda1 /media/2tb
When your done, you should unmount the disk
sudo umount /media/2tb
See man mount or https://help.ubuntu.com/community/Fstab