grub problem

hi to all ,pls help me
i am using p4 intel machine
while trying new things my image of solaris boot have been deleted from grub
now i want to boot solaris 10 from the grub command line but i don't know the command for this .please help me as i want to know solution for this so i don't have this problem again

see the grub command list:
Commands - GNU GRUB Manual 0.97

can anybody provide a perfect command pls because i have tried every cmd
pls help

Do you know what partition your Solaris installation is on? Is it using the whole disk or do you also have Windows or a Linux installation on the disk?

it is on 1st partition while 2nd & 3rd have pridos partition with no data

These should be the correct menu.lst entries for that setup:

title Solaris
  root (hd0,0,a)
  kernel /platform/i86pc/multiboot -B console=ttya
  module /platform/i86pc/boot_archive


title Solaris failsafe
  root (hd0,0,a)
  kernel /boot/multiboot -B console=ttya -s
  module /boot/x86.miniroot.safe

For a full boot from the grub command line so that you can make the require changes:

root (hd0,0,a)
kernel /platform/i86pc/multiboot -B console=ttya
module /platform/i86pc/boot_archive
boot

sorry not working
error :partition doesn't exist

helo pls help me is there anyone who knows how to log in solaris os from grub command line

You can't directly boot Solaris from a different version of grub that the ones provided with Solaris. You might chainload Solaris grub from a non ufs/zfs aware grub with this kind of entry:

title Solaris (chainload)
        rootnoverify (hd0,0)
        chainloader +1
        makeactive
        boot