Archlinux
Archlinux is used on VTP boards.
To install packages, on any vtp board do following:
su export http_proxy=http://jprox:8082 export https_proxy=http://jprox:8082 mkdir /mnt/mount mount -o bind /misc/diskless/ArchLinux/armv7-devel/root /mnt/mount pacstrap /mnt/mount <package>