gistfile1.txt

/mnt/home:
  mount.mounted:
    - name: /mnt/home
    - device: LABEL=home
    - fstype: ext4
    - mkmnt: True
    - persist: False
    - mount: True
    - unless:
      - mountpoint -q /home

home_copy:
  cmd.run:
    - onchanges:
      - mount: /mnt/home
    - name: 'cp -av /home/* /mnt/home/ | wc -l'
    - unless:
      - test "$(find /mnt/home/ -mindepth 1 -maxdepth 1 ! -name lost+found | sort)" = "$(find /home/ -mindepth 1 -maxdepth 1 ! -name lost+found | sort)"

/home:
  mount.mounted:
    - device: LABEL=home
    - fstype: ext4
    - mkmnt: True
    - opts: defaults,nobootwait
    - pass_num: 2
    - persist: True
    - mount: True
    - require:
      - home_copy

/mnt/home_umount:
  mount.unmounted:
    - name: /mnt/home
    - onlyif:
      - mountpoint -q /mnt/home
    - require:
      - /home
  file.absent:
    - name: /mnt/home
    - require:
      - /home