This procedure assumes that the operating system is shutdown.
Disconnect the damaged system disk from the system.
Typically, a small switch is located at the back of the disk for this purpose.
Connect the replacement system disk to the system, and check the physical connections.
Refer to the disk's hardware installation guide for details.
Boot the system.
This procedure assumes that you are booting from GRUB's Solaris failsafe boot option.
Press any key to reboot the system if the system displays the Press any key to reboot prompt. Or, use the reset button to restart the system if the system is shut down.
The GRUB menu is displayed after a few minutes.
At the Do you wish to automatically update boot archives? prompt answer no.
The root prompt (#) is displayed.
You must reboot the system when you want to exit Solaris failsafe boot mode. You cannot reboot the system to multiuser mode until the system disk is successfully added, the data is restored, and the bootblocks are installed.
You can create an fdisk partition if the disk is less than 1 terabyte size. Go to x86: How to Create a Solaris fdisk Partition.