[OpenIndiana-discuss] Cannot get into X following updage (hipster)

[Harry Putnam]

Following update of an hipster install running as Vbox guest on an OI
(151_9) installation, rebooted to new BE following upgarde, But it
does not bring up X as in the past, so logging into my user at console
and attempting to startx from there I get this error:

,----
| xauth:  creating new authority file /home/harry/.serverauth.1470
| 
| 
| Fatal server error:
| Cannot move old log file "/var/log/Xorg.0.log" to "/var/log/Xorg.0.log.old"
| 
| 
| Please consult the Project OpenIndiana support
|     at http://openindiana.org
|  for help.
`----

I haven't started X in that way on hipster before but far as I know a
user should be able to start X... is that correct?

I haven't seen a message similar to this one on the group so guessing
this is an unusual outcome following an update.

The error (EE) lines from /var/log/Xorg.0.log

,----
|           (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
| [131626.915] (II) Loading extension MIT-SCREEN-SAVER
| [131626.918] (EE) Failed to load module "xtrap" (module does not exist, 0)
| [131626.920] (EE) Failed to load module "glcore" (module does not exist, 0)
| [131626.925] (EE) Failed to load module "xtsol" (module does not exist, 0)
| [131626.945] (EE) module ABI major version (6) doesn't match the server's version (12)
| [131626.946] (EE) Failed to load module "vboxvideo" (module requirement mismatch, 0)
| [131626.946] (EE) No drivers available.
`----

I don't know enough about this to tell what those errors mean, but it
looks like some aspect of vbox is involved.  However the line right
before the failure to load `vboxvideo', where module ABI shows a
version mismatch...seems like it might be important.

I haven't upgraded Vbox to the newest version so still running 4.3.20.


Can anyone offer some ideas about what is happening here?