T60p Extract VGABIOS

In this method, we will grab the VGABIOS from the computer's working memory. This is the simplest, and probably most reliable method, since the VGABIOS will patch itself with the necessary graphics card IDs at every boot.

1. Open up a Linux Terminal.

2. Become root with su or sudo su.

3. Use this nice little Bash one-liner (by Peter Stuge) to automatically detect the location of the VGABIOS in memory, and dump it with dd.

    cat /proc/iomem | grep 'Video ROM' | (read m; m=${m/ :*}; s=${m/-*}; e=${m/*-}; \
    dd if=/dev/mem of=vgabios.bin bs=1c skip=$[0x$s] count=$[$[0x$e]-$[0x$s]+1])
   

4. The VGABIOS has now been extracted (in the current directory) as vgabios.bin .

• Source: Coreboot Wiki - Extracting VGABIOS from the System