A script that arranges all your mountpoints into a tree.

mountree.py

#!/usr/bin/env python3
"""
mountree
========
This prints all your filesystem mounts in a tree so you can see how they
are laid out.

It only works on Linux because it uses ``/proc``.

:copyright: © 2014 Matthew Frazier
:license:   MIT/X11
"""
import os.path

filesystems = {}

def split_into(line, *names):
    data = {}
    for name, value in zip(names, line.split()):
        data[name] = value
    return data


with open('/proc/mounts', 'r') as fd:
    for line in fd:
        fs = split_into(line, "device", "mountpoint", "fstype",
                        "options", "dump_frequency", "fsck_order")
        filesystems[fs['mountpoint']] = fs


# Make sure everything has a parent!
for fs in list(filesystems.values()):
    parent = os.path.dirname(fs['mountpoint'])
    while parent != '/':
        # We use None to indicate a folder on the real filesystem.
        if parent not in filesystems:
            filesystems[parent] = None
        parent = os.path.dirname(parent)


def indentation(mountpoint):
    if mountpoint == '/':
        return ''
    else:
        return mountpoint.count('/') * '   '


# Find out how big to draw the table
max_length = 1
for mountpoint in filesystems.keys():
    length = len(indentation(mountpoint)) + len(os.path.basename(mountpoint)) + 2
    max_length = max([max_length, length])


def fs_info(fs):
    if fs is None:
        return '(directory)'
    elif fs['fstype'] == fs['device']:
        return '{} [{}]'.format(fs['fstype'], fs['options'])
    else:
        return '{} on {} [{}]'.format(fs['fstype'], fs['device'], fs['options'])


for mountpoint, fs in sorted(filesystems.items()):
    print((indentation(mountpoint) + os.path.basename(mountpoint) + '/').ljust(max_length) +
          fs_info(fs))

my-computers-mounts.txt

/                        ext4 on /dev/mapper/fedora_tantive4-root [rw,seclabel,relatime,data=ordered]
   boot/                 ext4 on /dev/sda1 [rw,seclabel,relatime,data=ordered]
   dev/                  devtmpfs [rw,seclabel,nosuid,size=1979188k,nr_inodes=494797,mode=755]
      hugepages/         hugetlbfs [rw,seclabel,relatime]
      mqueue/            mqueue [rw,seclabel,relatime]
      pts/               devpts [rw,seclabel,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000]
      shm/               tmpfs [rw,seclabel,nosuid,nodev]
   home/                 ext4 on /dev/mapper/fedora_tantive4-home [rw,seclabel,relatime,data=ordered]
   proc/                 proc [rw,nosuid,nodev,noexec,relatime]
      sys/               (directory)
         fs/             (directory)
            binfmt_misc/ autofs on systemd-1 [rw,relatime,fd=31,pgrp=1,timeout=300,minproto=5,maxproto=5,direct]
   run/                  tmpfs [rw,seclabel,nosuid,nodev,mode=755]
      user/              (directory)
         1000/           (directory)
            gvfs/        fuse.gvfsd-fuse on gvfsd-fuse [rw,nosuid,nodev,relatime,user_id=1000,group_id=1000]
   sys/                  sysfs [rw,seclabel,nosuid,nodev,noexec,relatime]
      fs/                (directory)
         cgroup/         tmpfs [rw,seclabel,nosuid,nodev,noexec,mode=755]
            blkio/       cgroup [rw,nosuid,nodev,noexec,relatime,blkio]
            cpu,cpuacct/ cgroup [rw,nosuid,nodev,noexec,relatime,cpuacct,cpu]
            cpuset/      cgroup [rw,nosuid,nodev,noexec,relatime,cpuset]
            devices/     cgroup [rw,nosuid,nodev,noexec,relatime,devices]
            freezer/     cgroup [rw,nosuid,nodev,noexec,relatime,freezer]
            hugetlb/     cgroup [rw,nosuid,nodev,noexec,relatime,hugetlb]
            memory/      cgroup [rw,nosuid,nodev,noexec,relatime,memory]
            net_cls/     cgroup [rw,nosuid,nodev,noexec,relatime,net_cls]
            perf_event/  cgroup [rw,nosuid,nodev,noexec,relatime,perf_event]
            systemd/     cgroup [rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd]
         fuse/           (directory)
            connections/ fusectl [rw,relatime]
         pstore/         pstore [rw,nosuid,nodev,noexec,relatime]
         selinux/        selinuxfs [rw,relatime]
      kernel/            (directory)
         config/         configfs [rw,relatime]
         debug/          debugfs [rw,relatime]
         security/       securityfs [rw,nosuid,nodev,noexec,relatime]
   tmp/                  tmpfs [rw,seclabel]