Add initial pre-checks

tasks/pre-checks.yml

@@ -0,0 +1,29 @@
+---
+- name: Get /boot mount information
+  ansible.builtin.set_fact:
+    bigboot_boot_mount: "{{ ansible_facts.mounts \
+      | selectattr('mount', 'equalto', '/boot') | first }}"
+
+- name: Set next partition after /boot
+  ansible.builtin.set_fact:
+    bigboot_next_device: "{{ bigboot_boot_mount['device'][:-1] }}{{ bigboot_boot_mount['device'][-1:] | int + 1 }}"
+
+- name: Capture partition information from fdisk
+  ansible.builtin.shell:
+    cmd: |
+      set -o pipefail
+      fdisk -l {{ bigboot_boot_mount['device'][:-1] }} | grep '{{ bigboot_next_device }}'
+    executable: /bin/bash
+  changed_when: false
+  failed_when: bigboot_fdisk_partition['rc'] not in [0, 141]
+  register: bigboot_fdisk_partition
+
+- name: Debug bigboot_fdisk_partition
+  ansible.builtin.debug:
+    var: bigboot_fdisk_partition
+
+- name: Assert that the partition following /boot is of type LVM
+  ansible.builtin.assert:
+    that: "'Linux LVM' in bigboot_fdisk_partition['stdout']"
+    success_msg: The partition following /boot is an LVM partition
+    fail_msg: The partition following /boot is NOT an LVM partition. Execution halted.