fatal system error c000021a system does not boot

I am in an extreme situation
my windows server 2003 standard edition
will not boot from hdd
created a boot disk now it will not allow logon, cannot start cmd so cannot
check dr.watson to see what is causing crash
have installed sp1then this all began, how do i remove sp1when i cannot
access anything. i
is there any way to bypass the winlogon or crss??
please help

 

Try to repair your OS as following:
http://www.windowsreinstall.com/windows2000/Repair/index.htm
It's also good for Winserver 2003.
--

 

--
thanks Jen

 

Repair not overwrite your data on the server.
Anyway I always suggest to do a backup before, but I means you cannot do it,
isn't it?
--

 

--
thanks Jen

i have been able to boot the server using a boot disk but then it gives me
the c000021a error when i try to log on.

 

i have backup but cannot access it because it is on the server i

Ok, well!
Start server within OS cd-rom. Do a repair as a document shows you. If you
lose data you can proceed to restore from backup.

--

 

tried to repair win 2k3 server os from cd
cannot error said cannot find hard disk,
i know there is one there
any more suggestions?

 

Have you RAID controller on these server? Software or hardware?

--

 

have hardware RAID and there is a bootable array, but forsome reason not
accessing it

 

Before to proceed (I'm afraid you must to rebuild your RAID and consequence
your entire server) I need to know if you succeed to run the server in safe
mode and do logon.

--

 

--
thanks Jen

cannot start in safe mode just reboots
can start from boot disk but cannot logon
when start server from boot disk can access data on server
log on fails and it reboots
thanks again for everything

 

Situation is critical and require more resource. I suggest you to contact a
system engineer for a job on site.
I don't want to suggest to rebuild raid and reinstall OS from scratch before
a technical supervisioning.

--