W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn

When running

sudo apt-get update

I was getting the following errors:

W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E635A714505A2DD1
W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 1DABDBB4CEC06767
W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.GPG error: http://download.virtualbox.org lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 54422A4B98AB5139
W: GPG error: http://deb.opera.com stable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY F9A2F76A9D1A0061

The solution is simple.Take the first key you have problem with, for example E635A714505A2DD1, take the last 8 symbols (in this case - 505A2DD1) and run the following in the terminal:

gpg --keyserver keyserver.ubuntu.com --recv 505A2DD1
gpg --export --armor 505A2DD1 | sudo apt-key add -

Then repeat this step with every problematic key.

If you can't access keyserver.ubuntu.com on your computer, then get the key on another computer:

gpg --keyserver keyserver.ubuntu.com --recv 505A2DD1
gpg --export --armor 505A2DD1 > key.asc

Then transfer key.asc to your computer and run

cat key.asc | sudo apt-key add -

[Asdzaan]

Originally Posted by Stream Recorder

If you can't access keyserver.ubuntu.com on your computer, then get the key on another computer:

gpg --keyserver keyserver.ubuntu.com --recv 505A2DD1
gpg --export --armor 505A2DD1 > key.asc

Then transfer key.asc to your computer and run

cat key.asc | sudo apt-key add -

***************

Can you offer another way to get around not being able to access the key server? If behind a firewall and the keyserver ports are not open. How can you import the key?

Thanks.

Originally Posted by Asdzaan

Can you offer another way to get around not being able to access the key server? If behind a firewall and the keyserver ports are not open. How can you import the key?

Use wget to download .asc keys if they are available. For example:

wget -O - http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc | sudo apt-key add - 
wget -O - http://deb.opera.com/archive.key | sudo apt-key add -

[ghalebalmahdi]

Thanks sooooooooo much

[lynxbits]

Originally Posted by Stream Recorder

When running

sudo apt-get update

I was getting the following errors:

W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E635A714505A2DD1
W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 1DABDBB4CEC06767
W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.GPG error: http://download.virtualbox.org lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 54422A4B98AB5139
W: GPG error: http://deb.opera.com stable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY F9A2F76A9D1A0061

The solution is simple.Take the first key you have problem with, for example E635A714505A2DD1, take the last 8 symbols (in this case - 505A2DD1) and run the following in the terminal:

gpg --keyserver keyserver.ubuntu.com --recv 505A2DD1
gpg --export --armor 505A2DD1 | sudo apt-key add -

Then repeat this step with every problematic key.

It somehow helped, not to solve the problem but to narrow it .. thank you!

[SmokinMoeMan]

Worked for me Thanks.
Clear and concise...and very helpful
Could also read

https://www.virtualbox.org/wiki/Linux_Downloads