update fails gpg check

[Tim Dunphy]

## trying to get latest php on lucid lynx


root at li289-212:~# cat /etc/apt/sources.list.d/php.list
deb http://ppa.launchpad.net/nginx/php5/ubuntu lucid main
deb-src http://ppa.launchpad.net/nginx/php5/ubuntu lucid main


## update fails gpg key

Fetched 317B in 0s (717B/s)
Reading package lists... Done
W: GPG error: http://ppa.launchpad.net lucid Release: The following
signatures couldn't be verified because the public key is not
available: NO_PUBKEY 00A6F0A3C300EE8C


under centos I would just issue a yum update --no-gpgcheck, but is
there an analogous command under ubuntu?

thanks!
tim

-- 
GPG me!!

gpg --keyserver pool.sks-keyservers.net --recv-keys F186197B