Hi Benchmark,
Catalyst 2900XL and 3500XL switches normally load a valid image present in Flash memory.
If a message indicating an error loading flash is displayed during system bootup, or the switch is reloading continuously, it indicates the software image present in the Flash is corrupt, missing, or the boot variable in the configuration file is not set correctly.
The method used to recover the switch depends on whether a bootable image is present in the Flash.
A filename with the extension .bin specifies a bootable image in Flash.
To resolve this issue, perform these steps:
Step 1: To determine whether there are any image files in Flash, issue the dir flash: command.
Step 2: If a valid image is present, you can manually boot the switch from the image by issuing the boot flash: command.
Step 3: If there is no valid image present, load an image into the switch by using the X-modem procedure.
Recovery From Corrupt or Missing Software Image on Cisco Catalyst
2900XL and 3500XL Series Switches:
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Hope this helps.
Brad Reese BradReese.Com - Cisco eBay Repair Service
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Hendersonville Road, Suite 17 Asheville, North Carolina USA 28803 USA & Canada: 877-549-2680 International: 828-277-7272 Fax: 775-254-3558 AIM: R2MGrant BradReese.Com - Cisco Power Supply Headquarters
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