Slackware

Images for several Slackware versions are available.

Slackware 12.0
Size (compressed/uncompressed): 252.58 MBytes / 1.8 GBytes
Link:http://downloads.sourceforge.net/virtualboximage/slackware-12.0-x86.7z
Active user account(s) (username/password): root/toor, slackware/reverse
Notes: bare minimum from CD 1, slapt-get is provided to ease software installation without the need of downloading the whole other ISO images