I just got myself a used Fujitsu Lifebook E8410 - the thing's around 6 years old, maybe older.
I'm aiming to use it to learn C and wanted to install a gnu/linux on it, but I don't know where to start. A gui would be nice though, maybe not even a DE, I might just put i3 on it.
I've used debian before, but I'm open for any lightweiht distro with support for older hardware.
I'd love to hear your recommendations and/or warnings.
Puppy Linux is another good one, but it's quite different and finding help when it's needed is a bit of a problem.
I don't know if you know this already, but you can try out any number of distros non-destructively. Just write a downloaded image distro to a pen drive, boot off it and select "try without installing"[1]. This is how I tried out a number of distros and settled on Lubuntu.
[1]: https://help.ubuntu.com/community/Lubuntu/InstallingLubuntu