Code: Select all
sudo pistar-update
Updating OS...
Get:2 http://raspbian.raspberrypi.org/raspbian buster InRelease [15.0 kB]
Get:3 http://archive.raspberrypi.org/debian buster InRelease [25.1 kB]
Get:1 http://cdn-fastly.deb.debian.org/debian buster-backports InRelease [37.3 kB]
Get:4 http://archive.raspberrypi.org/debian buster/main armhf Packages [205 kB]
Err:1 http://cdn-fastly.deb.debian.org/debian buster-backports
InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 04EE7237B7D453EC NO_PUBKEY 648ACFD622F3D138
Reading package lists... Done
E: Repository 'http://raspbian.raspberrypi.org/raspbian buster InRelease' changed its 'Suite' value from 'testing' to 'stable'
N: This must be accepted explicitly before updates for this repository can be applied. See apt-secure(8) manpage for details.
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://cdn-fastly.deb.debian.org/debian buster-backports
]InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 04EE7237B7D453EC NO_PUBKEY 648ACFD622F3D138
E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable)
E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?
Done
Thanks!