And there's AFAIK no performance advantage in doing this. If you have a second computer, you could access the Blackbird via ssh: ssh root@blackbird -t -p2200
Then you could see the hostboot coming up like:
--== Welcome to Hostboot hostboot-3beba24/hbicore.bin ==--
3.05524|secure|SecureROM valid - enabling functionality
5.88506|Booting from SBE side 0 on master proc=00050000
5.92409|ISTEP 6. 5 - host_init_fsi
6.45292|ISTEP 6. 6 - host_set_ipl_parms
7.01365|ISTEP 6. 7 - host_discover_targets
…
[ 58.115693949,5] IPMI: Resetting boot count on successful boot
[ 58.115766868,5] INIT: Waiting for kernel...
[ 71.203854371,3] STB: BOOTKERNEL verification FAILED. log=0xffffffffffff8160
[ 71.204413794,5] INIT: 64-bit LE kernel discovered
[ 71.352697029,5] INIT: Starting kernel at 0x20011000, fdt at 0x306f35a0 206892 bytes
[ 73.036164478,3] LPC[000]: Got SYNC no-response error. Error address reg: 0xd0010080
[ 73.036176803,6] IPMI: dropping non severe PEL event
[ 73.036252854,7] UART: IRQ functional !
And you could also see Petitboot: