Fedora: check if in vbox before installing guest additions
OracleLinux: check if in vbox before installing guest additions
SLES: check if in vbox before installing guest additions
OpenSUSE: check if in vbox before installing guest additions
OpenIndiana: check if in vbox before installing guest additions
SL: check if in vbox before installing guest additions
Solaris: check if in vbox before installing guest additions
Ubuntu: check if in vbox before installing guest additions
Arch: check if in vbox before installing guest additions
Funtoo: check if in vbox before installing guest additions
Gentoo: check if in vbox before installing guest additions
FreeBSD: check if in vbox before installing guest additions
Windows: check if in vbox before installing guest additions