[SunHELP] Could not bring up system due to utmpx problem

[sunhelp at sunhelp.org]

I am running solaris8, I just reboot my system after changing IP address
and the system could not come up as it complains it could not write to
the file /var/adm/utmpx as shown below.  I entered into system
maintenance mode to attempt fixing utmpx file using VI to edit the file
but it does not let me save it, it told me the file is read only.
Please help me to fix the problem as it is critical.

Thanks,
David


Boot device: disk  File and args:
SunOS Release 5.8 Version Generic_108528-14 64-bit
Copyright 1983-2001 Sun Microsystems, Inc.  All rights reserved.
configuring IPv4 interfaces: hme0.

INIT: Cannot create /var/adm/utmpx

INIT: failed write of utmpx entry:"  "

INIT: failed write of utmpx entry:"  "

INIT: SINGLE USER MODE

Type control-d to proceed with normal startup,
(or give root password for system maintenance):