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Can't format flash card

When I try to format a flash card inserted in to sup-slot0: on a native IOS (Cisco 6509) I get the following error:

Hammond_Core_6509_1#format sup-slot0:

Format operation may take a while. Continue? [confirm]

Format operation will destroy all data in "sup-slot0:". Continue? [confirm]

Enter volume ID (up to 64 chars)[default slot0]:

%Error formatting slot0 (Can not find flash algorithm)

Any Ideas?


Re: Can't format flash card

What kind of flash card is it? Are you able to read it with "dir slot0:". Another thing is, you are running native, so from this perspective there is really just "slot0:". Have to tried formatting "slot0:?

Community Member

Re: Can't format flash card

It is in slot0: from what syslog says. It is an ATA Flash pc card. We are using a SUP2 module so it passes all of the requirements. When I do a dir slot0: I get the following output...

hostname#dir slot0:

%Error opening slot0:/ (Device not ready)

There is no write protect on this card either...

Community Member

Re: Can't format flash card

Nevermind... even though syslog says it is in slot0: with this type of card (ATA) you access it through Disk0:

Community Member

Re: Can't format flash card


I have similiar problem with Flash card. Check what maximum MB flash cards you can put into. Also check your firmware version on supervisor. I had old firmare 6.3 and couldn;t fit the 64 Mb flash card on sup2. I upgreaded it to 8.1 and work just fine.

Hope that helped you,



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