Failed to fetch https://packages.sury.org/php/dists/stretch/InRelease

Executing in a Debian 9 an:

$ apt update

I get this error:

W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://packages.sury.org/php stretch InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY B188E2B695BD4743
W: Failed to fetch https://packages.sury.org/php/dists/stretch/InRelease  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY B188E2B695BD4743
W: Some index files failed to download. They have been ignored, or old ones used instead.

This is because the DPA has a new signing key. To resolve this problem you have to update the APT signing key, downloading the new key from the repositories:

$ sudo wget -O /etc/apt/trusted.gpg.d/php.gpg https://packages.sury.org/php/apt.gpg
--2019-03-18 21:28:18--  https://packages.sury.org/php/apt.gpg
Resolving packages.sury.org (packages.sury.org)... 2001:bc8:6006:2023:aa1e:84ff:fef1:1eeb, 62.210.94.130
Connecting to packages.sury.org (packages.sury.org)|2001:bc8:6006:2023:aa1e:84ff:fef1:1eeb|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1769 (1.7K) [application/octet-stream]
Saving to: ‘/etc/apt/trusted.gpg.d/php.gpg’

/etc/apt/trusted.gpg.d/php.gpg        100%[=======================================================================>]   1.73K  --.-KB/s    in 0s

2019-03-18 21:28:18 (12.5 MB/s) - ‘/etc/apt/trusted.gpg.d/php.gpg’ saved [1769/1769]

Now the «apt update» works correctly.

9 thoughts on “Failed to fetch https://packages.sury.org/php/dists/stretch/InRelease

  1. I was getting this sudo apt update same issue on raspberry pi.
    The apt update and upgrade worked fine.
    but while restarting the device the device was not working not even booting up.

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