- name: setup syslinux
  gather_facts: no
  hosts: "{{target}}"
  become: "{{become_var}}"
  tasks:

  - name: boot blocks and boot code
    ansible.builtin.shell:
      executable: /bin/bash
      cmd: |
        set -e

        boot_disk={{boot_disk}}
        boot_partition={{boot_partition}}

        ls -lhF /usr/share/syslinux/mbr.bin
        ls -lhF /usr/share/syslinux/libcom32.c32
        ls -lhF /usr/share/syslinux/mboot.c32
        extlinux -v

        echo -n checking for syslinux mbr boot blocks ...
        if [[ `dd if=$boot_disk bs=440 count=1 | strings | head -1` = RPf1 ]]; then
          echo already
        else
          echo overriding
          dd if=/usr/share/syslinux/mbr.bin of=$boot_disk
        fi

        mkdir -p /boot/syslinux/
        [[ ! -d /boot/syslinux/ldlinux.c32 ]] && extlinux --device $boot_partition --install /boot/syslinux

        [[ ! -f /boot/syslinux/libcom32.c32 ]] && cp -nv /usr/share/syslinux/libcom32.c32 /boot/syslinux/
        [[ ! -f /boot/syslinux/mboot.c32 ]] && cp -nv /usr/share/syslinux/mboot.c32 /boot/syslinux/
      creates: /boot/syslinux/ldlinux.c32
    register: blocks

  - debug: var=blocks.stdout
    when: blocks.stdout != ''
  - debug: var=blocks.stderr
    when: blocks.stderr != ''

  - name: syslinux boots xen
    ansible.builtin.copy:
      content: |

        # CONFIGURED BY ANSIBLE

        serial 0 115200
        console 1
        nohalt 1

        default xen
        prompt 1
        timeout 30

        label xen
          kernel mboot.c32
          append /xen.gz dom0_mem={{dom0_mem}} noreboot=true loglvl=info guest_loglvl=info smt=1 ept=exec-sp com1=115200,8n1 console=com1,vga --- /vmlinuz root={{boot_partition}} ro console=hvc0 earlyprintk=xen mitigations=off

        label linux
          linux /vmlinuz
          append root={{boot_partition}} ro console=tty1 console=ttyS0,115200n8 mitigations=off
      dest: /boot/syslinux/syslinux.cfg

  - name: console goes hvc0
    ansible.builtin.lineinfile:
      path: /etc/inittab
      regexp: '^s1:'
      line: s1:12345:respawn:/sbin/agetty --noclear --local-line hvc0 115200 linux