Cisco DS-X9530-SF1-K9 - Supervisor-1 Module - Control Processor Configuration Manual page 199

Chapter 6 Software Images
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m .
Figure 6-2
Loads kickstart image
If the images on your switch are corrupted and you cannot proceed (error state), you can interrupt the
switch boot sequence and recover the image by entering the BIOS configuration utility described in the
following section. Access this utility only when needed to recover a corrupted internal disk.
The BIOS changes explained in this section are only required to recover a corrupted bootflash.
Caution
Recovery procedures require the regular sequence to be interrupted. The internal switch sequence goes
through four phases between the time you turn the switch on and the time the switch prompt appears on
your terminal—BIOS, boot loader, kickstart, and system (see
Table 6-3 Recovery Interruption
Phase Normal Prompt
BIOS
loader>
Boot loader
Starting
kickstart
Kickstart
Uncompressing
system
System
Login:
1. This prompt or message appears at the end of each phase.
2. This prompt or message appears when the switch cannot progress to the next phase.
3. Depending on your Telnet client, these keys may be reserved and you need to remap the keystroke. Refer to the documentation provided by your Telnet
client.
OL-6973-03, Cisco MDS SAN-OS Release 2.x
Regular Boot Sequence
Loads loader
Loads kernel,
basic drivers, and
SAN-OS image
Login prompt
1 2
Recovery Prompt
No bootable
device
loader>
switch(boot)#
—
1. BIOS
2. Loader
3. Kickstart image
4. System image
Description
The BIOS begins the power-on self test, memory test, and other
operating system applications. While the test is in progress, press
Ctrl-C to enter the BIOS configuration utility and use the netboot
option.
The boot loader uncompresses loaded software to boot an image using
its file name as reference. These images are made available through
bootflash. When the memory test is over, press Esc to enter the boot
loader prompt.
When the boot loader phase is over, press Ctrl-]
right bracket key) to enter the
causes the console to stop at this prompt, copy the system image and
reboot the switch.
The system image loads the configuration file of the last saved running
configuration and returns a switch login prompt.
Cisco MDS 9000 Family Configuration Guide
Corrupted Bootflash Recovery
Table 6-3 and Figure 6-3).
3
(Control key plus
prompt. If the corruption
switch(boot)#
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