W: GPG error: http://updates.xensource.com etch Release: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 841D6D8DFE3F8BB2 W: You may want to run apt-get update to correct these problems This is because the GPG key Xensource use to sign their packages hasn’t been added to the VM’s apt keyring, and here’s how to fix it: wget -q http://updates.vmd.citrix.com/XenServ... -O- | apt-key add -
- Kevin Duane