export VBOX_LOG_DEST="nofile stderr" export VBOX_LOG_FLAGS="thread time" export VBOX_LOG="+dev_sb16.e.l.f.l3.l5.l7.l9" export VBOX_RELEASE_LOG_DEST="nofile stderr" export VBOX_RELEASE_LOG="-all +dev_sb16.e.l.f" #export VBOX_LOG=""