Bonjour, Bonsoir,

J'ai lamentablement échoué dans la mise à jour de mon de serveur.
J'ai voulue passé de Jessie à Stretch, mais j'ai un problème avec GPG.

Lorsque je fais un apt update:

Hit:1 http://repo.mysql.com/apt/debian jessie InRelease
Err:1 http://repo.mysql.com/apt/debian jessie InRelease                                                                             
Unknown error executing apt-key
Hit:2 http://security.debian.org stretch/updates InRelease                                                                          
Err:2 http://security.debian.org stretch/updates InRelease
  Unknown error executing apt-key
 Ign:3 http://debian.mirrors.ovh.net/debian stretch InRelease
Get:4 http://debian.mirrors.ovh.net/debian stretch-updates InRelease [91,0 kB]
Get:5 http://debian.mirrors.ovh.net/debian stretch-backports InRelease [91,8 kB] 
Get:6 http://debian.mirrors.ovh.net/debian stretch Release     
Err:4 http://debian.mirrors.ovh.net/debian stretch-updates InRelease
Unknown error executing apt-key
Err:5 http://debian.mirrors.ovh.net/debian stretch-backports InRelease
Unknown error executing apt-key
Err:7 http://debian.mirrors.ovh.net/debian stretch Release.gpg                                                                      
 Unknown error executing apt-key
Fetched 301 kB in 30s (9 802 B/s)                                                                                                   
Reading package lists... Done

W: An error occurred during the signature verification. The repository is not updated and the previous index 
files will be used. GPG error: http://repo.mysql.com/apt/debian jessie InRelease: Unknown error executing 
apt-key


    W: An error occurred during the signature verification. The repository is not updated and the previous index 
files will be used. GPG error: http://security.debian.org stretch/updates InRelease: Unknown error executing 
apt-key  
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://debian.mirrors.ovh.net/debian stretch-updates InRelease: Unknown error executing apt-key

W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://debian.mirrors.ovh.net/debian stretch-backports InRelease: Unknown error executing apt-key

W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://debian.mirrors.ovh.net/debian stretch Release: Unknown error executing apt-key

W: Failed to fetch http://security.debian.org/dists/stretch/updates/InRelease  Unknown error executing apt-key

W: Failed to fetch http://debian.mirrors.ovh.net/debian/dists/stretch-updates/InRelease  Unknown error executing apt-key

W: Failed to fetch http://debian.mirrors.ovh.net/debian/dists/stretch-backports/InRelease  Unknown error executing apt-key

W: Failed to fetch http://repo.mysql.com/apt/debian/dists/jessie/InRelease  Unknown error executing apt-key

W: Failed to fetch http://debian.mirrors.ovh.net/debian/dists/stretch/Release.gpg  Unknown error executing apt-key

W: Some index files failed to download. They have been ignored, or old ones used instead.

J'ai voulu faire un :

apt-key list

Mais j'ai l'erreur suivante:

gpg: Fatal: libgcrypt is too old (need 1.7.0, have 1.6.3)

Je suis un peu perdu là. Je suis en debian 9.2 (enfin c'est ce que me dis /etc/debian_version) et le uname -a

3.14.32-xxxx-grs-ipv6-64 #1 SMP Sat Feb 7 11:35:27 CET 2015 x86_64 GNU/Linux

Serveur kimsufi.

J'espère que tout n'est pas perdu ^.