3.1.3 Enabling Network Connectivity with the Diagnostic ISO

If a storage server does not restart, the diagnostic ISO may be needed to access the cell so it can be manually repaired.

The diagnostic ISO should be used after other boot methods, such as using the USB, do not work.

The following procedure enables networking with the diagnostic ISO so files can be transferred to repair the cell:

1. Restart the system using the diagnostics.iso file.
   See Booting a Server using the Diagnostic ISO File in Oracle Exadata System Software User's Guide.
2. Log in to the diagnostics shell as the root user.
   When prompted, enter the diagnostics shell.

   For example:

   Choose from following by typing letter in '()':
   (e)nter interactive diagnostics shell. Must use credentials 
   from Oracle support to login (reboot or power cycle to exit
   the shell),
   (r)estore system from NFS backup archive, 
   Type e to enter the diagnostics shell and log in as the root user.

   If prompted, log in to the system as the root user. If you are prompted for the root user password and do not have it, then contact Oracle Support Services.
3. Use the following command to avoid pings:

   alias ping="ping -c"
   

4. Make a directory named /etc/network.
5. Make a directory named /etc/network/if-pre-up.d.
6. Add the following lines to the /etc/network/interfaces file:

   iface eth0 inet static
   address IP_address_of_cell
   netmask netmask_of_cell
   gateway gateway_IP_address_of_cell
   

7. Bring up the eth0 interface using the following command:

   ifup eth0
    

   There may be some warning messages, but the interface is operational.

8. Use either FTP or the wget command to retrieve the files to repair the cell.