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Switch 3750E IOS upgrade failure

Hi all,

I have a brand new switch 3750E (Model number : WS-C3750E-48TD-S), which would be upgraded to latest IOS.

I issue the following command to upgrade IOS:

switch#archive download-sw /overwrite tftp://

The output is below:



examining image...

extracting info (107 bytes)

extracting c3750e-universal-mz.122-46.SE/info (382 bytes)

extracting info (107 bytes)

Stacking Version Number: 1.40

System Type: 0x00000002

Ios Image File Size: 0x00AC0A00

Total Image File Size: 0x00D45A00

Minimum Dram required: 0x08000000

Image Suffix: universal-122-46.SE

Image Directory: c3750e-universal-mz.122-46.SE

Image Name: c3750e-universal-mz.122-46.SE.bin

Image Feature: IP|LAYER_3|PLUS|MIN_DRAM_MEG=128

Old image for switch 1: flash:c3750e-universal-mz.122-35.SE5

Old image will be deleted after download.


The switch got frozen, and I have to power cycle it. Then the switch boots up with old IOS.

It seems new IOS image file didn't overwrite the old one. I tried 3 times, the result. Any suggestion? Should I just delete the old one and archive new one?

Your help is appreciated.



Re: Switch 3750E IOS upgrade failure

Normaly you should get an error mesasge when there is not enough space. I would not delete the old one bevore.

Try firt this with the reload

archive download-sw /overwrite /reload


try next to leave the old one. maybe it will work..

archive download-sw /leave-old-sw /reload


look if there is not enough space...

hope this helps...

otherwise mabye a hardware error would i say

Re: Switch 3750E IOS upgrade failure

Hi Ethan, when the archive download is completed or successful the boot variable will automatically be updated with the new IOS image.

The overwrite keyword deletes the existing or current image in order to make room for the new one. If you use either /leave-old-sw, or /safe then this could cause problems if there is insufficent flash.

In both cases the old software is not deteled, with /safe it will delete the old image once the new one has been downloaded sucessfully.

If the overwrite does not appear to be successful, then I would recommend deleting the current image first before downloading the new archive without the need to overwrite:-

delete /force /recursive flash:/file-url

Hope this helps


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Community Member

Re: Switch 3750E IOS upgrade failure

thanks everyone.

The switch has enough flash memory. Actually the new image file is already uploaded to flash, it just wasn't being extracted.

I tried switch#arechive /download ......

all commands doesn't work.

What i did is to copy tar file to flash mem, and from the flash mem, i extracted the file. And it is successful.

archive tar /xtract [tar file] flash:


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