Problem Instaling Solaris

hi
I was trying to install Solaris on my PC.
when i selected Auto Ejaection of cd & auto reboot.....then it displayed that u will need to manually eject current disk, & Select an appropriate boot media to avoid installation process again..
then after selecting appropriate options, the instalation started.... in which i asked it to create partitions as /, /usr,/var,/home, swap (giving in all15Gb space for Solaris & selected complete installation... when about 20% of installation was completed.... console opened.... Instalation from CD 1 complete....after making some more logs.... line is displayed showing Installation is complete for Solaris & the system reboots & grub opens. Solaris is not asking for 2,3 & 4CD. when i select Solaris from Grub....the system boots......when i use ls at / it displays partions that i have not mentioned..... no home partition has been made....
Moreover ordinary commands like ls,grep etc are working but system commands are not working at all.....
i have tried installing using manual reboot * manual cd ejection but same problem occurs.
Please help..........
Thanks in advance....