Sun Fire V20z Compute Grid Rack System
 
Sun Fire V20z Server
 
Sun Fire V40z Server
 

GCS>Sun Microsystems>Servers>x64 Servers
 

• In Oracle / Red Hat Linux, the GRUB configuration file is /etc/grub.conf.
• In Novell / SUSE Linux, the GRUB file is /boot/grub/menu.1st.

Note - On Oracle / Red Hat Linux systems, the file /etc/grub.conf may be a symbolic link to the file /boot/grub/grub.conf.

• Pass the proper console parameters to the kernel.
• Configure the GRUB menu system to redirect to the proper console.
• Remove any splash image entries that would prevent the proper serial-console display.

1. Change the stock kernel entry of your image to include the console-kernel parameters, as follows:

 kernel /vmlinuz-kernel_revision ro root=/dev/your_root_volume console=ttyS0,9600 console=tty0 

Note - These options should all be on one line without wrapping to a second line.

2. Add the following two lines to the top of your GRUB configuration file:

 serial --unit=0 --speed=9600 

 terminal serial console 

Note: Depending on the console server being used (i.e. Cyclades, etc., ) it may be necessary to change the order of the terminal serial console line. For example it may be necessary to move the order around to "terminal console serial" depending on the graphics display seen.

Adding these two lines at the beginning of the file sets up your serial port or your KVM (keyboard / video / mouse emulator) as your GRUB console to remotely or locally select a boot image from the GRUB menu output.

3. Comment out or remove the following line from your GRUB configuration file (line may differ depending on configuration):

 splashimage=(hd0,1)/boot/grub/splash.xpm.gz 

Removing the splashimage line allows for greater compatibility during your serial connection; with this line removed, the splash image does not prevent the proper GRUB menu from displaying.

4. If the "getty" service is running, then add the following line to the /etc/inittab file. The service called "getty" is run at boot time to enable logins on the serial interface. To enable "getty", append the following line to the list of "gettys" in the /etc/inittab file:

 7:12345:respawn:/sbin/agetty 9600 ttyS0 

5. By default the SP (service processor hardware) has console redirected to itself. Configure the SP, login and redirect the console to the main platforms serial port using the following steps listed below.

In the front of the v20z/v40z, assign an IP address, netmask and gateway (if needed) to the SP. Follow these next steps:

1. Using "putty" or "ssh", connect to the SP of the v20z / v40z as the user "setup".

# ssh -l setup <spipaddress> 

2. You will be asked to create a user and a password, then you will be logged out.

3. Log back into the SP as the user you just created.

# ssh -l <spuser> <spipaddress>

4. First set the console speed to 9600 and direct it to the SP.

# platform set console -s sp -S 9600 -e

5. Then set the console redirection to platform.

# platform set console -s platform 

You should now be able to log into the serial interface of the v20z / v40z.

For further information on modifying the grub.conf file or using LILO, please reference the following URL(s) from the Sun Fire v20z and Sun Fire v40z Servers, Server Management Guide.

Sun Fire V20z and Sun Fire V40z Servers--Server Management Guide
Using the grub Bootloader

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