gistfile1.txt

Get:102 http://au.archive.ubuntu.com precise-backports/universe Translation-en [22.8 kB]                         
Fetched 26.8 MB in 58s (459 kB/s)                                                                                
Reading package lists... Done
W: GPG error: http://apt.ucis.nl current Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 3AD0973F8FB8E4CE
root@staging:/var/lib/apt# sudo apt-key del 3AD0973F8FB8E4CE
gpg: key "3AD0973F8FB8E4CE" not found: eof
gpg: 3AD0973F8FB8E4CE: delete key failed: eof
root@staging:/var/lib/apt# sudo apt-key finger
/etc/apt/trusted.gpg
--------------------
pub   1024D/437D05B5 2004-09-12
      Key fingerprint = 6302 39CC 130E 1A7F D81A  27B1 4097 6EAF 437D 05B5
uid                  Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>
sub   2048g/79164387 2004-09-12

pub   1024D/FBB75451 2004-12-30
      Key fingerprint = C598 6B4F 1257 FFA8 6632  CBA7 4618 1433 FBB7 5451
uid                  Ubuntu CD Image Automatic Signing Key <cdimage@ubuntu.com>

pub   4096R/C0B21F32 2012-05-11
      Key fingerprint = 790B C727 7767 219C 42C8  6F93 3B4F E6AC C0B2 1F32
uid                  Ubuntu Archive Automatic Signing Key (2012) <ftpmaster@ubuntu.com>

pub   4096R/EFE21092 2012-05-11
      Key fingerprint = 8439 38DF 228D 22F7 B374  2BC0 D94A A3F0 EFE2 1092
uid                  Ubuntu CD Image Automatic Signing Key (2012) <cdimage@ubuntu.com>

pub   1024R/8683D8A2 2009-01-19
      Key fingerprint = FB32 2597 BBC8 6D52 FEE9  50E2 99B6 56EA 8683 D8A2
uid                  Launchpad PPA for Martin Pitt

pub   1024R/C3173AA6 2010-09-30
      Key fingerprint = 80F7 0E11 F0F0 D5F1 0CB2  0E62 F5DA 5F09 C317 3AA6
uid                  Launchpad PPA for Brightbox

root@staging:/var/lib/apt# sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 3AD0973F8FB8E4CE
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /tmp/tmp.VvKGnM4KO2 --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --recv-keys --keyserver keyserver.ubuntu.com 3AD0973F8FB8E4CE
gpg: requesting key 8FB8E4CE from hkp server keyserver.ubuntu.com
gpgkeys: key 3AD0973F8FB8E4CE not found on keyserver
gpg: no valid OpenPGP data found.
gpg: Total number processed: 0
root@staging:/var/lib/apt#