I am trying to upgrade one of my PIX 515E (128 MB of memory/16 MB flash) from 6.3(4) to 8.0(4), without going through the progression (6.3 to 7.0, 7.0 t0 7.3, 7.3 to 8.0). My plan is to simply load the 8.0 image into flash, erase the config and then config it from scratch.
However, every time I copy tftp flash I get the following message:
Received 7538688 bytes
Flash filesystem recreated.
Erasing current image
Insufficient flash space available for this request:
Size info: request:7458872 current:1966136 delta:5492736 free:2883584
Image not installed
Can anyone suggest a way to do this? I tired to clear the flash (clear flashfs) but that didn't do anything either.