image: T4516: Added system image tools

This commit adds the whole set of system image tools written from the scratch in
Python that allows performing all the operations on images:

* check information
* perform installation and deletion
* versions management

Also, it contains a new service that will update the GRUB menu and keep tracking
its version in the future.

WARNING: The commit contains non-reversible changes. Because of boot menu
changes, it will not be possible to manage images from older VyOS versions after
an update.

1 files changed, 22 insertions, 0 deletions

diff --git a/data/templates/grub/grub_common.j2 b/data/templates/grub/grub_common.j2
new file mode 100644
index 000000000..78df3f48c
--- /dev/null
+++ b/data/templates/grub/grub_common.j2
@@ -0,0 +1,22 @@
+# load EFI video modules
+if [ "${grub_platform}" == "efi" ]; then
+    insmod efi_gop
+    insmod efi_uga
+fi
+
+# create and activate serial console
+function setup_serial {
+    # initialize the first serial port by default
+    if [ "${console_type}" == "ttyS" ]; then
+        serial --unit=${console_num}
+    else
+        serial --unit=0
+    fi
+    terminal_output --append serial console
+    terminal_input --append serial console
+}
+
+setup_serial
+
+# find root device
+#search --no-floppy --fs-uuid --set=root ${root_uuid}