Montar unidades desde el inicio

Comando para identificar particiones:

sudo fdisk -l

Well, you need to add lines in fstab for each of the partitions on
your internal hard drive that you want mounted automatically.

1) Use the following command to create a mount point for this drive
(change mountpoint to a name that is not already in use and will be
easy to recognize and remember):

sudo mkdir /media/mountpoint

2) Use the following command to back a back up of your fstab file in
case something goes wrong:

sudo cp /etc/fstab /etc/fstab.bak

3) Use the following command to open fstab for editing:

sudo gedit /etc/fstab

Add one of the following line (depending on filesystem type) to your
fstab to cause it to automatically mount (replace sda# with the name
of the device you wish to mount and mountpoint with the mountpoint you
created in step 1):

For ext3:

/dev/sda# /media/mountpoint ext3 defaults,errors=remount-ro 0 1

For NTFS:
/dev/sda# /media/mountpoint ntfs-3g defaults,nls=utf8,umask222 0 0

For Fat32 or Fat16:
/dev/sda# /media/mountpoint vfat user,utf8,fmask=0111,dmask=0000 0 0

Reboot.

Fuente: http://ubuntuforums.org/archive/index.php/t-669962.html