优化 grub 配置，简化模块加载并调整终端输出设置

files/mnt/p1/boot/grub/grub.cfg

@@ -1,30 +1,14 @@
-insmod search
-insmod echo
-insmod terminal
-insmod test
-insmod font
-insmod loadenv
-insmod serial
-insmod usb_keyboard
-insmod linux
-insmod gzio
-insmod fat
-insmod ext2
-insmod ata
-insmod btrfs
-insmod ntfs
-insmod part_msdos
-insmod part_gpt
-insmod png
-insmod jpeg
-
 set default="boot"
 set timeout="5"
 set timeout_style="menu"
+set pager=1
 set vesa_mode=1
+set color_normal=white/black
+set menu_color_normal=light-cyan/black
+set menu_color_highlight=black/cyan
 
-if [ -s $prefix/grubenv ]; then
-  load_env
+if [ -s ${prefix}/grubenv ]; then
+  load_env --skip-sig
 fi
 if [ "${next_entry}" ]; then
   set default="${next_entry}"
@@ -35,38 +19,37 @@ if [ "${vesa_mode}" ]; then
   set vesa_mode=${vesa_mode}
 fi
 
-function load_video {
-  if [ x$feature_all_video_module = xy ]; then
+terminal_input console
+terminal_output console
+
+if [ "${feature_all_video_module}" = "y" ]; then
   insmod all_video
 else
   insmod efi_gop
   insmod efi_uga
-    insmod ieee1275_fb
   insmod vbe
   insmod vga
   insmod video_bochs
   insmod video_cirrus
 fi
-}
 
-load_video
 if loadfont unicode; then
   set gfxmode=auto
-  insmod gfxterm
+  if [ "${grub_platform}" = "efi" ]; then
+    terminal_output --append gfxterm
+  else
     terminal_output gfxterm
   fi
-
-background_image $prefix/logo.png
-
-set color_normal=white/black
-set menu_color_normal=light-cyan/black
-set menu_color_highlight=black/cyan
-
-if serial --unit=0 --speed=115200; then
-  terminal_input --append serial_com0
-  terminal_output --append serial_com0
 fi
 
+if serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1; then
+  terminal_input --append serial
+  terminal_output --append serial
+fi
+
+insmod png
+background_image ${prefix}/logo.png
+
 function set_gfxpayload {
   if [ ${vesa_mode} -eq 1 ]; then
     set gfxpayload=keep
@@ -75,7 +58,7 @@ function set_gfxpayload {
   fi
 }
 
-set RR_CMDLINE="earlyprintk earlycon=uart8250,io,0x3f8,115200n8 console=ttyS0,115200n8 root=/dev/ram rootwait nointremap net.ifnames=0 panic=5 split_lock_detect=off pcie_aspm=off intel_pstate=disable nox2apic nomodeset"
+set RR_CMDLINE="earlyprintk earlycon=uart8250,io,0x3f8,115200n8 console=ttyS0,115200n8 root=/dev/ram rootwait intremap=off net.ifnames=0 panic=5 split_lock_detect=off pcie_aspm=off intel_pstate=disable nox2apic nomodeset"
 
 search --set=root --label "RR3"
 if [ -s /zImage-dsm -a -s /initrd-dsm ]; then