Solaris 10 Serial Console

Enable a serial port for the VM.
1. Enable Port 1
2. Port Number COM1
3. Port Mode: Host Pipe
4. Create Pipe
5. Port/File Path: /tmp/vb-VM-NAME-console
Perform a reconfiguration boot on the VM.
Install socat on the host system
```
sudo apt-get install socat
```
Change the eeprom console device for the VM:
```
eeprom console=ttya
```

Change the /boot/grub/menu.lst for the VM:

...
# To enable grub serial console to ttya uncomment the following lines
# and comment out the splashimage line below
# WARNING: don't enable grub serial console when BIOS console serial
#       redirection is active!!!
serial --unit=0 --speed=9600
terminal serial
#
# Uncomment the following line to enable GRUB splashimage on console
#splashimage /boot/grub/splash.xpm.gz
#
# To chainload another OS
...

Bring down the VM:
```
init 5
```
Once this is done, we can now tell VirtualBox to boot the VM headless and connect with socat
```
VBoxManage startvm node1 --type headless && socat -,raw,echo=0 /tmp/vb-node1-console
```

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Solaris 10 Serial Console