flash memory organization

    I'm using a DM500. I'm not very familiar with embedded PCs. I understand that the flash memory by default read-only. Directories like "/etc" are a part of the image file and cannot be modified. Other directories like "/var/etc" are writable but also retain their values after reboot.


    1.) Where are the writable directories stored? In ram in a ram disk?
    2.) If so, is the ram disk automatically written to flash memory?
    3.) When you re-flash an image are the contents of the writable directories lost?

    on a DM500 all the /var directorys are writable and will not be erased during a reboot.


    The /temp directories will be erased during reboot.


    flashing a new image will only erase the settings if you make a 'flash-erase' (sometimes necessary)

    cu


    floh