And my final addition to the GRUB2 menuentry is the System Rescue CD ISO. Normally this is best installed in a USB stick or in a CD-ROM for use in an emergency. For the fun of it, I decided to try running a live version off from a PC.
For a super-duper lightweight Linux distro, I think this one takes the cake! Tiny Core Linux has 3 different cores to choose from: Core (16MB), Tiny Core (21MB), Core Plus (163MB). After testing them out, I decided to go for the 163MB installation image.
SLAX is a super small lightweight Linux distro. It used to be based on Slackware, hence the name SLAX. However, nowadays, it is based on Debian. It has a very nice GUI and some basic software. Since it is based on Debian, you can easily install more software to make it useful.