Thanks for your quick reply.
When I do "aptitude update", I've this warning :
W: GPG error:
ftp://mirror.hetzner.de etch Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 9AA38DCD55BE302B
W: GPG error:
ftp://mirror.hetzner.de etch/updates Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 9AA38DCD55BE302B
W: GPG error:
http://security.debian.org etch/updates Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 9AA38DCD55BE302B
W: GPG error:
http://ftp.uni-bayreuth.de etch Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 9AA38DCD55BE302B
W: You may want to run apt-get update to correct these problems
I've tried the apt-get update but I've the same warning.
What can I do ?
Regards
Ghislain