Dragging up an old thread from the archive:
On Thu, 22 Jun 2017 12:25:07 -0300 Henrique Holschuh wrote:
On Thu, 22 Jun 2017, Charles E. Blair wrote: > When I type "apt-get
upgrade" I get > this message, and things stop: > > W: There is no
public key available for the following key IDs: > EF0F382A1A7B6500 > >
I hope there is a simple fix. You can ignore the warning _in this
specific instance_: it is expected, and apt is using another key to
verify the downloads. This warning will be fixed for the Debian 8.9
oldstable point-release (due in about a month or so), which adds the
missing key.
I don't understand what oldstable has to do with it, but while upgrading to stretch, I am seeing the identical error message.
I'll ignore it, but shouldn't it have been fixed?