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Troubleshooting Switch Upgrades - (cisco)

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Athena_Shield

Troubleshooting Switch Upgrades - (cisco)
« เมื่อ: 6 สิงหาคม 2005, 13:06:50 »
   
Troubleshooting Switch Upgrades 


Getting "Permission Denied" error message during the bootup.

This error message appears when the boot parameters are not set correctly. In most of the cases,
when setting the boot parameters during or after the upgrade, the word flash: is mistyped or completely missed.

Go to Setting BOOT Parameters at ROMMON (Switch: Prompt) to verify and set the BOOT parameters correctly.

If setting the BOOT parameters to the correct file name does not resolve the issue, perform an X-Modem upgrade,
as the file present on the Flash memory could be corrupted or invalid


                                               .........................................................................


Getting "Error Loading Flash" error messages

The error loading Flash message means that there is a problem loading the current image in Flash memory.
The image could be corrupt or incorrect, or the image in Flash memory could be missing. If the system is unable to load
a software image in Flash memory, the system will load the boot helper and bring up a switch prompt.

1. Enter the dir flash: command to verify if there is any bootable image on the Flash.
   The file with .bin extension is the bootable image on the Flash.

If you see a bootable image on the Flash, continue to Step 2. If you do not see any bootable image
in the Flash, download the IOS Image File by using X-Modem.


2. Enter the set BOOT flash: name of IOS file command to set the boot variable to the file name displayed in Step 1.

Note BOOT must be capitalized and make sure to include flash: before the file name.

3. Enter the boot command.

Note If the switch boots properly, enter the setting boot parameters global configuration command to verify
and set the BOOT parameters (if needed), and proceed to Step 4. If the switch fails to boot properly, download
the IOS Image File using X-Modem.

4. After setting the BOOT parameters, reload the switch by entering the reload privileged EXEC command.


                                               .........................................................................

The switch boots up automatically with the correct image.


Getting "No Such File or Directory" error message during bootup.
This error message appears when the names of the bootable file and the actual file in the Flash differ.
This usually happens due to a mistyped file name when setting the boot parameters, during or after the upgrade.

Go to Setting BOOT Parameters at ROMMON (Switch: Prompt) to verify and set the BOOT parameters correctly.

If setting the BOOT parameters to the correct file name does not resolve the issue, perform an X-Modem upgrade,
as the file present on the Flash memory could be corrupted or invalid.


                                           .........................................................................
 
Failed software upgrade; switch is resetting continuously.

   This might be due to a corrupt or incorrect image, or the image in Flash might be missing.
   Following these steps to recover if the switch is in a reset loop after or during the upgrade.

       1. Connect the PC to the switch console port.

       2. Press the Enter key a few times. Are you seeing a switch: prompt? If not, go to Step 3. Otherwise, go to Step 4.

       3. Disconnect the power cord. Hold down the mode button on the front of the switch, and plug the power cord back in.
           All LEDs above all ports should come on green. Continue to hold down the mode button until the light above port 1 goes out,
           and then release the mode button. The prompt should be switch:.

       4. Download the IOS Image File using X-Modem.
 
   After the upgrade, the switch still boots up with the old image.



                                              .........................................................................

This happens when either the BOOT parameters are not correct and
the switch is still set to boot from the old image or the upgrade did not go through properly.


   Verify the BOOT parameters, and correct them if needed.
   If the BOOT parameters are correct, download the IOS Image File using TFTP.
   If the switch still boots with the old image, download the IOS Image File using X-Modem.

                                              .........................................................................
 
Switch not booting automatically; needs a manual boot at the ROMMON (switch: prompt).

   The switch boot parameters might be set for manual boot. The switch can be set to boot automatically by following these steps:

       1. Use Telnet to access the switch, or connect the PC to the switch console port.

       2. Enter the privileged EXEC mode by entering the enable command at the switch> prompt.

       3. Enter the global configuration mode by entering configure terminal at the Switch# prompt.

       4. Enter no boot manual to tell the switch to boot automatically.

       5. Enter end to return to privileged EXEC mode, and save the configuration by entering the write memory command.

       6. Verify the boot parameters by entering show boot. Verify that Manual Boot is set to no.



 
ข้อมูลจาก

Troubleshooting - Troubleshooting Switch Upgrades
http://www.cisco.com/univercd/cc/td/doc/product/lan/c2900xl/29_35wc/sc/swgtrbl.htm#xtocid109887



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