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System Initialization
System Initialization
The primary copy of SR OS software is located on a compact flash card. The removable media is
shipped with each 7710 SR-Series router and contains a copy of the SR OS image.
Notes:
• The CCM modules contain three slots for removable compact flash cards. The drives on a 7710
SR-c4 are named Compact Flash Slot #1 (cf1), Compact Flash Slot #2 (cf2), and Compact Flash
Slot #3 (cf3). Configurations and executable images can be stored on flash cards or an FTP file
location. There are six Compact Flash slots on the 7710 SR-c12, three for CFM-A and three for
CFM-B.
• The flash card containing the bootstrap and boot option files must be installed in Compact Flash
Slot #3 (cf3) on the CCM.
• You must have a console connection.
Starting a 7710 SR-Series router begins with hardware initialization (a reset or power cycle). By
default, the system searches Compact Flash Slot #3 (cf3) for the
bootstrap file). The
commands configured in the boot option file (BOF). The default value to initially search for the
boot.ldr
The following is an example of console display output when the
on cf3.
...
(memory test messages)
(serial number information)
Searching for boot.ldr on local drives:
No disk in cf3
No disk in cf3
No disk in cf3
Error - file boot.ldr not found on any drive
Please insert CF containing boot.ldr. Rebooting in 5 seconds.
(5 second wait)
Rebooting...
(memory test messages)
(user presses '2')
Skipping CF power on diagnostics, boot from CF2
(serial number information)
Searching for boot.ldr on local drives:
Searching cf2 for boot.ldr...
***********************
(normal boot continues)
When the bootstrap image is loaded, the BOF is read to obtain the location of the image and
configuration files. The BOF must be located on the same compact flash drive as the
file.
Figure 3
Page 126
file is the image that reads and executes the system initialization
boot.ldr
file on cf3 cannot be modified.
displays the system initialization sequence.
7710 SR OS Basic System Configuration Guide
file (also known as the
boot.ldr
file cannot be located
boot.ldr
boot.ldr
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