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.

(cherry picked from commit 96b65e90fbfa1fe63d97929ac86fc910abb0caa9)

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 %}