Primeiro, seu fstab deve ficar assim:
#comments.......
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc nodev,noexec,nosuid 0 0
UUID=1384cee0-6a71-4b83-b0d3-1338db925168 / ext4 noatime,errors=remount-ro 0 1
UUID=e3729117-b936-4c1d-9883-aee73dab6729 none swap sw 0 0
... não é necessário montar automaticamente as partições de recuperação do Windows, etc.
Agora, para remover partições do painel esquerdo, crie uma regra do udev:
gksudo gedit /etc/udev/rules.d/hide-partitions.rules
... e cole o seguinte:
ACTION!="add|change", GOTO="hide_partitions_end"
SUBSYSTEM!="block", GOTO="hide_partitions_end"
KERNEL=="loop*|ram*", GOTO="hide_partitions_end"
################################################## ############################
# Let's hide sda2 and sda3
KERNEL=="sda2", ENV{UDISKS_PRESENTATION_HIDE}="1"
KERNEL=="sda3", ENV{UDISKS_PRESENTATION_HIDE}="1"
################################################## ############################
LABEL="hide_partitions_end"
... salve e saia.
Isso deve ocultar as partições "SYSTEM RESERVED" e "Acer" após uma reinicialização.