FLASH Write Error #5 on Aironet 350

Hi!

I tried to upgrade an Aironet 350 AP running VXWorks to IOS. After that the AP isn't booting any more. If I upload the old firmware over the serial connection and try to run it I get an error that says: "FLASH Write Error #5" Does this mean that the Flash memory is broken? It is also not possible to copy files from DRAM to config or FLASH. Copying from config or FLASH to DRAM is still possible.

Thanks for your answers, Matthias

Reply to
Matthias Holthus
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Hi Matthias,

Prerequisites for the conversion of the VxWorks-based Cisco Access Point (AP) to Cisco IOS-based AP, refer to these documents:

  1. For more information on how to upgrade an AP to Cisco IOS firmware with the conversion tool, refer to Using the Conversion Tool:

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  1. For more information on how to upgrade an AP to Cisco IOS firmware without the conversion tool, refer to Upgrading an Access Point to Cisco IOS Operation Without the Conversion Tool:

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Note: This upgrade is permanent.

You cannot downgrade from Cisco IOS firmware to VxWorks since the VxWorks bootloader is overwritten during the upgrade process.

Note: When the image from VxWorks is upgraded to Cisco IOS, use the VxWorks-to-IOS upgrade image.

If VxWorks firmware version 12.04 or later is used, first downgrade the VxWorks version to 12.03.

For more information, refer to the Downgrading VxWorks Firmware Version to 12.03T section:

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of Upgrade Cisco Aironet AP1200 to IOS.

These are the supported VxWorks firmware versions for conversion to Cisco IOS firmware:

12.03T

12.02T1

12.01T1

12.00T

11.56

This upgrade must be performed through the wired connection to the AP.

Additionally, the station from which the upgrade is performed must be on the same Ethernet segment as the AP.

Note: To run the upgrade process successfully, the AP must have at least 4 MB of DRAM available.

If this requirement is not met, the upgrade fails.

Issue the :vxdiag_memshow VxWorks command at the console prompt, or at a Telnet session, to display the amount of free DRAM.

Note: If the upgrade process from VxWorks to Cisco IOS fails, the AP must be recovered.

For more information, refer to the Recover from a Failure section:

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of Upgrade Cisco Aironet AP1200 to IOS.

For more information on the firmware and configuration, refer to Managing Firmware and Configurations:

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For more information on the upgrade process, refer to Upgrade Cisco Aironet AP1200 to IOS:

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For more information related to configuration, refer to Cisco IOS Software Configuration Guide for Cisco Aironet Access Points 12.3(7)JA:

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Sometimes the firmware upgrade to the Access Point (AP) fails due to an insufficient memory in Flash on the Access Point.

In that case, try deleting crashinfo files from the AP.

To delete the crash info, issue the AP# delete flash: crashinfo_20050209-003009.

Note: There should be enough memory in Flash to store the new image.

Only then does the upgrade work.

Sometimes the exception crashinfo file

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may accumulate and fill in the Flash memory.

Make sure that the crashinfo files are deleted before the upgrade.

In order to overwrite the firmware image on the AP, issue this command on the Telnet session of the AP:

AP# archive download-sw /force-reload /overwrite tftp://ip address/image filename (for e.g c1200-k9w7-tar.123-4.JA.tar )

Hope this helps.

Brad Reese

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