I'm in need of somehow, remake the image of ramdisk for example, and copy it back to the pendrive. Why? Well i just wanna
#apt-get install nmap
And do it once, rewrite the image (that is in the pendrive) and next boot nmap will be just on the fly =)
I was searching for something here before posting, and i found remastersys. Maybe it helps, but i'm sure that isn't the "closed solution" yet, maybe helps a lot, but if does what i read, just makes the ISO.
Maybe the Mint guys have developed some tool like that, if not, i can try =)
Just to know if there's some tool like that around it. it would be wonderful to "customize" with your packages, and just save all the stuff into the pendrive =)