[flashrom] Path syntax for Linux Flashrom?

[a webuser]

I've found lots of helpful info on using Flashrom for updating an HP xw9400 BIOS using an Ubuntu Live DVD, but the commands never seem to include any path information!

For example:

flashrom -r biosbackup.rom

flashrom -E

flashrom -w 7D6_0403.bin

In the first and third lines, where does Flashrom assume the files are located if no path is supplied?  If I install a floppy to read/write to, what is the path syntax?

About the Ubuntu Live DVD, could someone add a little more info to these cryptic instructions to install Flashrom (is this multiple steps)?

install flashrom (open a terminal from the start menu, do sudo su) using apt-get install flashrom

Thanks!