Downgrading PIX v7 to v6.2.4

[dfariborz]

I need to downgrade to from v7 to 6.2.4. After deleting the flash and putting 6.2.4 there the following message is displayed during reload:

"Image must be at least 7-0-0-0 error in file flash:/pix624.bin

No bootable image in flash. Please download an image from a network server in the monitor mode"

Is downgrading from v7 to v624 allowed? If so how is it done.

Thank you

[grant.maynard · Accepted solution]

You must use the "downgrade" command. The guide below refers to downgrading to 6.3 so I'd do that, then try 6.2.

http://www.cisco.com/univercd/cc/td/doc/product/iaabu/pix/pix_sw/v_70/pix_upgd/pixupgrd.htm#wp1810347

[dfariborz]

Thanks. It fixed my problem.