Script to mod the PhoenixBIOS of a ThinkPad T43 to replace an Option ROM and include a custom boot logo

t43-phoenix-mod.bat

@echo off
coreutils\touch DUMMY

REM Create a temp dir to extract the original BIOS
coreutils\rm -r temp
coreutils\mkdir temp
coreutils\cp $0197000.ROM temp\bios.rom
cd temp
REM List and Extract
..\phnxdeco.exe bios.rom -l
..\phnxdeco.exe bios.rom -x
cd ..


REM Copy the old Option ROM (binary)
coreutils\cp temp\phoenix_.R2 OP_OLD.ROM

REM Convert the old Option ROM BIOS to MOD using Phoenix Prepare
prepare OP_OLD.SCR

coreutils\cp 15ad07b0.rom NVMEPAD1.ROM

REM Convert Option ROM BIOS to MOD using Phoenix Prepare
prepare OPROM1.SCR

REM Pad the Option ROM Module to same size
coreutils\dd bs=1 if=DUMMY of=OPROMPAD.MOD seek=23361
coreutils\dd bs=1 if=NVMEPAD1.MOD of=OPROMPAD.MOD conv=notrunc

REM Make a copy of the original BIOS to work with
coreutils\cp $0197000.ROM MOD.ROM

REM Replace the module
phnxmod.exe MOD.ROM OP_OLD.MOD OPROMPAD.MOD

REM Replace the logo
REM 0x2816 (10262) bytes available (compressed!)
REM L.00 (        LOGO)   00DA2 (03490) => 25876 (153718)  LZINT (  2%)  A0187h
prepare LOGO.SCR
coreutils\dd bs=1 if=LOGO.MOD of=MOD.ROM skip=5 seek=655751 conv=notrunc

REM Calculate the new checksum
phnxcksm.exe MOD.ROM

coreutils\rm *.LOG
coreutils\rm *.MOD

coreutils\rm DUMMY