How would I remount the root partition with the “noatime” option and afterwards make it permanent, without knowing the layout of the filesystems on the machine (so no template for /etc/fstab)?
If the “mounted” state is given to the mount module, will it remount the partition if it is already mounted?
mount: name=/ src=/dev/mapper/root fstype=xfs opts=ro state=mounted
How would I make the above permanent? With a "mount > /etc/fstab", or is there a nicer way?