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
2-20
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
OL-9285-05
Chapter 2 Troubleshooting Installs, Upgrades, and Reboots
Troubleshooting Cisco SAN-OS Software System Reboots
Recovery from the loader> Prompt on Supervisor-1 Modules
Caution
This procedure uses the
init system
command, which reformats the file system of the device. Be sure
that you have made a backup of the configuration files before you begin this procedure.
The
loader>
prompt is different from the regular
switch#
prompt.
•
The CLI command completion feature does not work at this prompt and may result in undesired
errors. You must type the command exactly as you want the command to appear.
•
The ICMP stack is not supported, so you cannot ping the TFTP server.
•
The TFTP server must be configured with the IP address of the default gateway (rather than any
other IP address on the defined subnet.
Tip
Use the
help
command at the
loader>
prompt to display a list of commands available at this prompt or
to obtain more information about a specific command in that list.
To recover a corrupted kickstart image (system error state) for a switch with a single supervisor module,
follow these steps:
Step 1
Enter the local IP address and the subnet mask for the switch at the
loader>
prompt, and press
Enter
.
loader>
ip address 172.16.1.2 255.255.255.0
Found Intel EtherExpressPro100 82559ER at 0xe800, ROM address 0xc000
Probing...[Intel EtherExpressPro100 82559ER]Ethernet addr: 00:05:30:00:52:27
Address: 172.16.1.2
Netmask: 255.255.255.0
Server: 0.0.0.0
Gateway: 0.0.0.0
Step 2
Specify the IP address of the default gateway.
loader>
ip default-gateway 172.16.1.1
Address: 172.16.1.2
Netmask: 255.255.255.0
Server: 0.0.0.0
Gateway: 172.16.1.1
Step 3
Boot the kickstart image file from the required server.
loader>
boot tftp://172.16.10.100/kickstart-image1
Address: 172.16.1.2
Netmask: 255.255.255.0
Server: 172.16.10.100
Gateway: 172.16.1.1
Booting: /kick-282 console=ttyS0,9600n8nn quiet loader_ver= “2.1(2)”....
............................................Image verification OK
Starting kernel...
INIT: version 2.78 booting
Checking all filesystems..... done.
Loading system software
INIT: Sending processes the TERM signal
Sending all processes the TERM signal... done.
Sending all processes the KILL signal... done.
Entering single-user mode...
INIT: Going single user
INIT: Sending processes the TERM signal
switch(boot)#
