Cisco MDS-9124 Troubleshooting Guide - Page 68
Recovery from the loader> Prompt on Supervisor-1 Modules
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Troubleshooting Cisco SAN-OS Software System Reboots Chapter 2 Troubleshooting Installs, Upgrades, and Reboots Send documentation comments to [email protected] 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 Step 2 Step 3 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 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 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)# 2-20 Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x OL-9285-05