[root@rcxnet apt]# apt-get install up2date
Reading Package Lists... Done
Building Dependency Tree... Done
The following extra packages will be installed:
   elfutils (0.96-1)
   gmp (4.1.4-3)
   libxml2 (2.6.16-3)
   libxml2-python (2.6.16-3)
   newt (0.51.6-5)
   pyOpenSSL (0.6-1.p23.1.fc3)
   python (2.3.4-13.1)
   pyxf86config (0.3.19-1)
   rhnlib (1.8-6.p23.fc3)
   rhpl (0.148.1-2)
   rpm (4.3.3-3.0.fc3.1)
   rpm-python (4.3.3-3.0.fc3.1)
The following packages will be upgraded
   rpm (4.3.2-21 => 4.3.3-3.0.fc3.1)
The following NEW packages will be installed:
   elfutils (0.96-1)
   gmp (4.1.4-3)
   libxml2 (2.6.16-3)
   libxml2-python (2.6.16-3)
   newt (0.51.6-5)
   pyOpenSSL (0.6-1.p23.1.fc3)
   python (2.3.4-13.1)
   pyxf86config (0.3.19-1)
   rhnlib (1.8-6.p23.fc3)
   rhpl (0.148.1-2)
   rpm-python (4.3.3-3.0.fc3.1)
   up2date (4.3.47-5)
1 upgraded, 12 newly installed, 0 removed and 38 not upgraded.
Need to get 2065kB/9575kB of archives.
After unpacking 31.7MB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://ayo.freshrpms.net fedora/linux/3/i386/core newt 0.51.6-5 [81.8kB]
Get:2 http://ayo.freshrpms.net fedora/linux/3/i386/core pyxf86config 0.3.19-1 [58.3kB]
Get:3 http://ayo.freshrpms.net fedora/linux/3/i386/updates pyOpenSSL 0.6-1.p23.1.fc3 [144kB]
Get:4 http://ayo.freshrpms.net fedora/linux/3/i386/core rhnlib 1.8-6.p23.fc3 [99.6kB]
Get:5 http://ayo.freshrpms.net fedora/linux/3/i386/updates rhpl 0.148.1-2 [294kB]
Get:6 http://ayo.freshrpms.net fedora/linux/3/i386/core up2date 4.3.47-5 [1388kB]
Fetched 2065kB in 2s (779kB/s)
Checking GPG signatures...
Unknown signature /var/cache/apt/archives/rpm_4.3.3-3.0.fc3.1_i386.rpm: (SHA1) DSA sha1 md5 (GPG) NOT OK (MISSING KEYS: GPG#30c9ecf8)
Unknown signature /var/cache/apt/archives/rpm-python_4.3.3-3.0.fc3.1_i386.rpm: (SHA1) DSA sha1 md5 (GPG) NOT OK (MISSING KEYS: GPG#30c9ecf8)
E: Error(s) while checking package signatures:
0 unsigned package(s)
2 package(s) with unknown signatures
0 package(s) with illegal/corrupted signatures
[root@rcxnet apt]#