From 4c3a36ec411e159be15eee1b79a87b4c0d6878a3 Mon Sep 17 00:00:00 2001
From: Bohan Yang <youthdna@live.com>
Date: Mon, 9 Nov 2020 04:17:51 +0000
Subject: [PATCH] Auto config EFI

---
 README.md  |  2 ++
 netboot.sh | 12 ++++++++++--
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 8478ed3..2622a99 100644
--- a/README.md
+++ b/README.md
@@ -39,7 +39,9 @@ This script is used to re-install VPS to **Debian 9 (stretch) or 10 (buster)** w
  - `--skip-partitioning`
  - `--partitioning-method regular`
  - `--disk`
+ - `--mbr`
  - `--gpt`
+ - `--bios`
  - `--efi`
  - `--filesystem ext4`
  - `--kernel` Choose an package for the kernel image
diff --git a/netboot.sh b/netboot.sh
index 94ba9b1..c295e32 100755
--- a/netboot.sh
+++ b/netboot.sh
@@ -45,8 +45,8 @@ ntp=0.debian.pool.ntp.org
 skip_partitioning=false
 partitioning_method=regular
 disk=
-gpt=false
-efi=false
+gpt=true
+efi=
 filesystem=ext4
 kernel=
 install_recommends=true
@@ -161,9 +161,15 @@ while [ $# -gt 0 ]; do
             disk=$2
             shift
             ;;
+        --mbr)
+            gpt=false
+            ;;
         --gpt)
             gpt=true
             ;;
+        --bios)
+            efi=false
+            ;;
         --efi)
             efi=true
             ;;
@@ -403,6 +409,8 @@ EOF
 
         echo "d-i partman/default_filesystem string $filesystem" | $save_preseed
 
+        [ -z "$efi" ] && efi=false && [ -d /sys/firmware/efi ] && efi=true
+
         $save_preseed << 'EOF'
 d-i partman-auto/expert_recipe string \
     naive :: \