/home/user # apt-get update [...] W: GPG error: http://repository.maemo.org fremantle Release: The following signature couldn't be verified because the public key is not available: NO_PUBKEY 6713C33F3F027BB1 W: You may want to run apt-get update to correct these problems
/home/user # apt-get install mp-fremantle-community-pr [...] Failed to fetch [..] Size mismatch E: Unable to fetch some archives, maybe run apt-get upade or trying witch --fix-missing?