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cisco 6509 catos - remove deleted file from flash

I'm trying to remove a file from flash and get this message Squeeze device flash failed (unknown device)

Is this a hardware failure or is there anything else i can try?

Console> (enable) show flash
-#- ED --type-- --crc--- -seek-- nlen -length- -----date/time------ name
  1 .D ffffffff 5fd7b46a  6431f0   21  6304109 Sep 22 2000 08:01:02 cat6000-sup.
  2 .. ffffffff 1be77d1b  eb54cc   22  8856156 Aug 02 2005 10:25:20 cat6000-sup_

830260 bytes available (15160524 bytes used)
Console> (enable) squeeze flash:

All deleted files will be removed, proceed (y/n) [n]? y

Squeeze operation may take a while, proceed (y/n) [n]? y

Squeeze device flash failed (unknown device)
Console> (enable)
1 Solution
Yeah, I can imagine you'd want to get rid of CatOS 5.5.  :)

Have you tried saving the other image somewhere safe, then formating the flash, then copying it back?  Do you have another flash card you could swap in for troubleshooting purposes?
CatOS should be able to give you the options if you enter "squeeze ?"
Squeeze applys to a device so it should be

squeeze bootflash:
squeeze slot0:

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