image: T4516: support for interoperability of legacy/new image tools

This commit allows management of system images with either new or legacy
tools: 'add/delete/rename system image' and 'set default' are translated
appropriately on booting between images with the old and new tools.
Consequently, the warning of the initial commit of T4516 is dropped.

1 files changed, 58 insertions, 0 deletions

diff --git a/data/templates/grub/grub_compat.j2 b/data/templates/grub/grub_compat.j2
new file mode 100644
index 000000000..935172005
--- /dev/null
+++ b/data/templates/grub/grub_compat.j2
@@ -0,0 +1,58 @@
+{# j2lint: disable=S6 #}
+### Generated by VyOS image-tools v.{{ tools_version }} ###
+{% macro menu_name(mode) -%}
+{% if mode == 'normal' -%}
+    VyOS
+{%- elif mode == 'pw_reset' -%}
+    Lost password change
+{%- else -%}
+    Unknown
+{%- endif %}
+{%- endmacro %}
+{% macro console_name(type) -%}
+{% if type == 'tty' -%}
+    KVM
+{%- elif type == 'ttyS' -%}
+    Serial
+{%- elif type == 'ttyUSB' -%}
+    USB
+{%- else -%}
+    Unknown
+{%- endif %}
+{%- endmacro %}
+{% macro console_opts(type) -%}
+{% if type == 'tty' -%}
+    console=ttyS0,115200 console=tty0
+{%- elif type == 'ttyS' -%}
+    console=tty0 console=ttyS0,115200
+{%- elif type == 'ttyUSB' -%}
+    console=tty0 console=ttyUSB0,115200
+{%- else -%}
+    console=tty0 console=ttyS0,115200
+{%- endif %}
+{%- endmacro %}
+{% macro passwd_opts(mode) -%}
+{% if mode == 'pw_reset' -%}
+    init=/opt/vyatta/sbin/standalone_root_pw_reset
+{%- endif %}
+{%- endmacro %}
+set default={{ default }}
+set timeout={{ timeout }}
+{% if console_type == 'ttyS' %}
+serial --unit={{ console_num }} --speed=115200
+{% else %}
+serial --unit=0 --speed=115200
+{% endif %}
+terminal_output --append serial
+terminal_input serial console
+{% if efi %}
+insmod efi_gop
+insmod efi_uga
+{% endif %}
+
+{% for v in versions %}
+menuentry "{{ menu_name(v.bootmode) }} {{ v.version }} ({{ console_name(v.console_type) }} console)" {
+    linux /boot/{{ v.version }}/vmlinuz {{ v.boot_opts }} {{ console_opts(v.console_type) }} {{ passwd_opts(v.bootmode) }}
+    initrd /boot/{{ v.version }}/initrd.img
+}
+{% endfor %}