I want to convert my old pc (733Mhz CPU, 40 Gb HD, 256 Mb RAM) to a nexus server(Local Maven repository). I don't need no GUI. I have read about puppy, MacPup and Lubuntu here, but I don't know if they meet my purpose or not. And I guess using a USB flash drive instead of a hard drive will be a good practice in this case, so being able to run on a USB memory stick is one important factor.
I have read that puppy can load itself entirely on RAM, I don't know if I need this feature or not, any suggestion on this matter will be appreciated.
I like Ubuntu because I have installed and used it so many times, but this fella says that it is to heavy on RAM.
Any suggestions on which distributions I should look into?