misc/152636: 8.1 Boot Only ISO doesn't support install via PPPoE link

[Bryant]

>Number:         152636
>Category:       misc
>Synopsis:       8.1 Boot Only ISO doesn't support install via PPPoE link
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Nov 28 05:40:11 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Bryant
>Release:        8.1-RELEASE
>Organization:
>Environment:
FreeBSD routerbox 8.1-RELEASE FreeBSD 8.1-RELEASE #0: Mon Jul 19 02:55:53 UTC 2010     root at almeida.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386
>Description:
When running the boot only iso installation one can successfully get to the sysinstall screen, but the netgraph module is not included with the kernel to permit the ppp dialer to function properly.

When starting an emergency holographic shell from the installer and then running 'ppp' running through the commands to start the PPPoE connection fails :

 set log Phase Chat LCP IPCP CCP LQM Command tun
 set device PPPoE:fxp0
 set ifaddr 0.0.0.0/0 0.0.0.0/0
 set MRU 1492
 set authname admin             # authenticate on the interface as this user
 set authkey password           # auth with this password
 nat enable yes
 nat deny_incoming no
 nat same_ports yes
 nat punch_fw 3001 299
 nat use_sockets yes
 add default HISADDR
 dial

This fails with the error message :
"Can not create a netgraph socket node: no such file of directory"

.. it has been determined that the command : "set device..." triggers this error message.  This type of connection is commonly used across the US with Verizon FiOS installations.

>How-To-Repeat:
1. Boot with the 8.1-RELEASE boot-only iso
2. start an emergency terminal.
3. run - ppp
4. enter-  set device PPPoE:fxp0
5. enter- dial
6.  press enter to see the error manifest itself.
>Fix:
the boot-only ISO may only need the netgraph.ko module included and loaded. Notably "kldload" and "kldstat" are absent from the boot-only iso.   This also begs the question :  How would one install with PPPoE through using the standard  method and not the emergency shell ?

>Release-Note:
>Audit-Trail:
>Unformatted: