Edit the vm configure file .vmx
Add a line
bios440.filename = “my.ROM”
strace -ffo s.txt -s 256 ls
check the s.txt.*
It is not easy to read, but you will know what lib is load, what file is read….
NAME
strace - trace system calls and signals
SYNOPSIS
strace [ -dffhiqrtttTvxx ] [ -acolumn ] [ -eexpr ] … [ -ofile ] [
-ppid ] … [ -sstrsize ] [ -uusername ] [ -Evar=val ] … [ -Evar ]
… [ command [ arg ... ] ]
strace -c [ -eexpr ] … [ -Ooverhead ] [ -Ssortby ] [ command [ arg
... ] ]