Tente adicionar a opção user
no seu opts em /etc/fstab
.
De man 8 mount
:
user
Allow an ordinary user to mount the filesystem. The name of the mounting user is written to mtab so that he can unmount the filesystem again. This option implies the options noexec, nosuid, and nodev (unless overridden by subsequent options, as in the option line user,exec,dev,suid).