re-read fstab
 

As of my understanding, if I want to re-read /etc/fstab I would run mount -a.

Is that correct? and would that be any problem for the mount points still mounted? Basically I will need to umount several mount points and I want to re-mount them very easily and fast.

thanks

mount -a would do the trick but its best to just mount each mount manually..

Say you have one in there to mount /data/one from another source.. a simple:

mount /data/one

Would mount it properly.

look into mount -o also.