Blank GRUB Screen

Hello.
I had installed solaris 10 in morning , and all was running fine... I just logged out and logged in with another user ID oracle - It got stuck and then I pressed the button for restart.

Now I see only word GRUB written in top line rest everything is black.

What to do?

Hey,

looks like a lost boot device.
Boot from a cd and try to mount the hd.
If the hd is not mountable, you have to reinstall
the os, but check your hd for physical errors.
After the mount of the hd, check the hd via fsck,
check /boot and check the grub menu if it points
to the correct kernel.

Bye
lowbyte

Hello - I couldnt find anysolution and had to manage with re-installation of solaris.

But got stuck again after successful installation and working fine with solaris on other issue:

When I asked for restart - It gives an error 'Unacle to open PAM libraries - Contact Sys admin' and then after sometime I get another error:
/usr/lib/security/pam_authok_get.so.1 failed: ld.so.1: login: fatal: /usr/lib/libsldap.so.1: unknown file type.
It asks for host console login: and I have no login than root.

What to do ???