Booting FreeBSD 9 from external HDD on Macbook?
I'm trying to install freebsd on external usb drive on my macbook pro. 
As it turned out it's not so easy. 

I'm installing freebsd on GPT disk (750Gb) and I have following partition table: 

[500Gb HFS+] // I want to use it as my TimeMachine backup

[64K freebsd-boot]

[8GB freebsd-swap]

[241Gb freebsd-zfs]

Freebsd installed without any problems. 

As expected OS X boot-loader don't recognize freebsd installation, so I installed rEFIt.
For some reason, refit don't worked until I installed it on my USB-flash drive. 

Finally, in boot menu I see my OS X item and "Legacy OS".
When I select it, i see: No bootable device -- insert boot disk and press any key.

Also, partition tool in refit can't start. I'm using "manual" method for installing refit, so maybe this is a reason.
Maybe someone have good step-by-step manual, or so? 
Thanks. 
Booting FreeBSD 9 from external HDD on Macbook?
===

I'm trying to install freebsd on external usb drive on my macbook pro. 
As it turned out it's not so easy. 

I'm installing freebsd on GPT disk (750Gb) and I have following partition table: 

[500Gb HFS+] // I want to use it as my TimeMachine backup

[64K freebsd-boot]

[8GB freebsd-swap]

[241Gb freebsd-zfs]

Freebsd installed without any problems. 

As expected OS X boot-loader don't recognize freebsd installation, so I installed rEFIt.
For some reason, refit don't worked until I installed it on my USB-flash drive. 

Finally, in boot menu I see my OS X item and "Legacy OS".
When I select it, i see: No bootable device -- insert boot disk and press any key.

Also, partition tool in refit can't start. I'm using "manual" method for installing refit, so maybe this is a reason.
Maybe someone have good step-by-step manual, or so? 
Thanks. 