switch from multi usermode to single user mode error

Your hostname should be shown if you issue a uname -a command (it's the second item in the list).

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it says
SunOS BDL09493A4 5.10 Generic_138888-07 sun4v sparc SUNW, SPARC-Enterprise-T5120.

so my hostname is BDL09493A4? correct?

as i cat the letters a-c in checking correct host location, there is an information only in b) /etc/host for the hostname, a and b dont have. but under this file someone added (BDL09493A4_1) though there is an existing hostname BDL09493A4, i think someone is trying to add another hostname

so this is incorrect right?

as for /var/adm/messages or $HOME/dt/errorlog i do not know how to know if there is an error, i can see hostname and it is correct

Yes, your hostname seems to be BDL09493A4. What happens if you ping BDL09493A4? ifconfig -a should give you information about the network interface card, including it's IP address.

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if i ping BDL09493A4 says its alive,
if i do ifconfig -a it shows
lo0: flags=201000849<UP, BROADCAST ,MULTICAST . IPv4, VIRTUAL > mtu 8232 index 1 inet 127.0.0.1 netmask ff000000
e1000g0: flags=201000803<UP, BROADCAST ,MULTICAST . IPv4, CoS> mtu 1500 index 2 inet 10.203.206.27 netmask ff000000 broadcast 10.255.255.255 ether 0:21:28:5d:7e:a0
e1000g1: flags=201000803<UP, BROADCAST ,MULTICAST . IPv4, CoS> mtu 1500 index 3 inet 10.203.206.28 netmask ff000000 broadcast 10.255.255.255 ether 0:21:28:5d:7e:a1

wherein data are the same with when i do command cat /etc/hosts, shows

127.0.0.1 local host
10.203.206.27 BDL09493A4 BDL09493A4.tmp.domain.net loghost
192.168.1.1 cmssvr-c
192.168.1.2 cmssvc-c
192.168.2.2 switch
10.203.206.28 BDL09493A4_1
10.203.206.133 buck_pbx

may i ask, what is the relation of dt error when changing multi usermode to single usermode?

maybe this info would help, my cms server is not connected to any router or pbx just lan connection to from ethernet0 to my laptop which has cms supervisor, and i can connect both only after i set the server to
ifconfig e1000g0 inet 192.168.1.5 netmask 255.255.255.0
and it works...

i am really desperate to know.. there are a lot of technical terms which i dont know and its importance...and i really appreaciate you KenCunningham answering my question... thanks

Sorry, I'm not particularly familiar with the dt message, but have you checked the 'magic cookie' stuff as mentioned in 4 above?

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yes, and i tried searching for error but didnt show any error. my computer cannot successfully login to single user mode. when i click on ok, it reboots but i have a gray screen only and i cannot operate the server. good thing i have telnet and putty access, i only type command: boot -s then it reboots my system correctly but goes back only to multi usermode 3... =(

this is the error