(Optional) Some switches may come with a NOS which will require you to uninstall the existing NOS first before you install SONiC. To do so, simply boot into ONIE and select Uninstall OS.

                     GNU GRUB  version 2.02~beta2+e4a1fe391
 +----------------------------------------------------------------------+
 |*ONIE: Install OS                                                     | 
 | ONIE: Rescue                                                         |
 | ONIE: Uninstall OS  <----- Select this one                           |
 | ONIE: Update ONIE                                                    |
 | ONIE: Embed ONIE                                                     |
 +----------------------------------------------------------------------+

      Use the ^ and v keys to select which entry is highlighted.          
      Press enter to boot the selected OS, `e' to edit the commands       
      before booting or `c' for a command-line.

For ARM platforms, use run onie_uninstall from UBOOT prompt to uninstall the existing NOS before you install SONiC.

Reboot the switch into ONIE and select Install OS.

                      GNU GRUB  version 2.02~beta2+e4a1fe391
 +----------------------------------------------------------------------+
 |*ONIE: Install OS  <----- Select this one                             | 
 | ONIE: Rescue                                                         |
 | ONIE: Uninstall OS                                                   |
 | ONIE: Update ONIE                                                    |
 | ONIE: Embed ONIE                                                     |
 +----------------------------------------------------------------------+

      Use the ^ and v keys to select which entry is highlighted.          
      Press enter to boot the selected OS, `e' to edit the commands       
      before booting or `c' for a command-line.

For ARM platforms, use run onie_bootcmd from UBOOT prompt to load ONIE.

Assign IP address.

• Ensure that eth0 is assigned a static IP or via DHCP.

• For ES1000 x86, ensure eth2 is assigned a static IP or via DHCP.

• For ES1010/ES1050/EG1050, ensure eth2 is assigned a static IP or via DHCP.

• Stop ONIE discovery mode using onie-stop.

Install SONiC. Transfer the image into the device using scp / sftp / ftp / http.

ONIE:/ # ifconfig eth0 <ip_address> netmask <netmask_ip>
ONIE:/ # ip route add default <gateway_ip>
ONIE:/ # onie-nos-install <URL>