darwin

# in recovery mode
❯ csrutil enable --without debug

# note that prior macOS 11.0 this would disable "Debugging Restrictions"
# since macOS 11.0 it seems to be disabling "Apple Internal" and "Filesystem Protections"

❯ csrutil status
System Integrity Protection status: unknown (Custom Configuration).

Configuration:

fernandoaleman

# Start the old vagrant
$ vagrant init centos-6.3
$ vagrant up

# You should see a message like:
#  [default] The guest additions on this VM do not match the install version of
#  VirtualBox! This may cause things such as forwarded ports, shared
#  folders, and more to not work properly. If any of those things fail on
#  this machine, please update the guest additions and repackage the
#  box.