Images for several MINIX releases are available.

1. MINIX 3.1.2
   Size (compressed/uncompressed): 6.4 MBytes / 57.7 MBytes
   Link: http://downloads.sourceforge.net/virtualboximage/minix-3.1.2-x86.7z
   Active user account(s) (username/password): root
   Notes: Minimal installation with no root password, no networking. Additional packages must be fetched from the official ISO image. Guest Additions not available.
2. MINIX 3.1.3a
   Size (compressed/uncompressed): 14.2 MBytes / 117,0 MBytes
   Link: https://sourceforge.net/projects/virtualboximage/files/MINIX/3.1.3a/Minix-3.1.3a.7z/download
   Active user account(s) (username/password): root
   Notes: Full installation with no root password, no networking. Guest Additions not available.