Possible Problem

Solution

Missing boot system flash global configuration command

Step 1 Use the show running-config privileged exec command to determine whether the configuration includes a boot system flash global configuration command entry. Use the show startup-config privileged exec command to determine whether the boot system flash command is included in the configuration stored in NVRAM2.

Step 2 Check the order of the boot system commands. For the recommended ordering, refer to the section "Fault-Tolerant Boot Strategies" earlier in this chapter.

Step 3 Add the boot system flash command or reorder the boot system commands if necessary.

Step 4 Save the configuration change to NVRAM using the copy running-config startup-config privileged exec command. The required syntax is as follows:

copy running-config {rcp | startup-config | tftp | file-id] (Cisco 7000, Cisco 7200, and Cisco 7500 series only)

Syntax Description:

• rcp—Specifies a copy operation to a network server using RCP.

• startup-config—Specifies the configuration used for initialization as the destination of the copy operation. The Cisco 4500 series cannot use this keyword.

• tftp—Specifies a TFTP server as the destination of the copy operation.

• file-id—Specifies a device: filename as the destination of the copy operation. The device argument is optional; but when it is used, the colon (:) is required.

Use the show version exec command to check the configuration register setting. Make sure it is set to boot from Flash memory. Refer to your hardware installation and maintenance publication for details regarding configuration register settings.

1 TFTP = Trivial File Transfer Protocol

2 NVRAM = nonvolatile random-access memory

Misconfigured configuration register

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