Settings -> Startup Disk - No recovery hd?

[macxylo]

Hey Dudes,

i want to select and boot the recovery hd over the system preferences.

Is it possible to do this?

Is there a other way over the shell?

 

Try different shell commands:

 

sudo nvram boot-args="rd=*hd:03"

 

sudo nvram boot-args="rd=disk0s3"

 

sudo bless -mount /Volumes/Recovery\ HD -setBoot

Could not set boot device property: 0xe00002bc

 

Any Ideas?

 

Kind Regards