# apt-get install mplayer
Leyendo listas de paquetes... Done
Construyendo árbol de dependencias... Done
Se instalarán los siguientes paquetes extras:
aalib (1.4.0-5.1.fc2.fr)
faad2 (2.0-1.1.fc2.fr)
libdvdcss (1.2.8-4.1.fc2.fr)
libdvdread (0.9.4-5.1.fc2.fr)
libpostproc (1.0-0.11.pre5.1.fc2.fr)
lirc (0.6.6-2.1.fc2.fr)
lzo (1.08-3.1.fc2.fr)
mplayer-fonts (1.1-2.0.dag)
xvidcore (1.0.1-1.1.fc2.fr)
Se instalarán los paquetes NUEVOS siguientes:
aalib (1.4.0-5.1.fc2.fr)
faad2 (2.0-1.1.fc2.fr)
libdvdcss (1.2.8-4.1.fc2.fr)
libdvdread (0.9.4-5.1.fc2.fr)
libpostproc (1.0-0.11.pre5.1.fc2.fr)
lirc (0.6.6-2.1.fc2.fr)
lzo (1.08-3.1.fc2.fr)
mplayer (1.0-0.11.pre5.1.fc2.fr)
mplayer-fonts (1.1-2.0.dag)
xvidcore (1.0.1-1.1.fc2.fr)
0 upgraded, 10 newly installed, 0 removed and 61 not upgraded.
Need to get 0B/8865kB of archives.
After unpacking 26,4MB of additional disk space will be used.
¿Quiere continuar? [S/n] s
Checking GPG signatures...
Unknown signature /var/cache/apt/archives/aalib_1.4.0-5.1.fc2.fr_i386.rpm: (SHA1) DSA sha1 md5 (GPG) NOT OK (MISSING KEYS: GPG#e42d547b)
Unknown signature /var/cache/apt/archives/faad2_2.0-1.1.fc2.fr_i386.rpm: (SHA1) DSA sha1 md5 (GPG) NOT OK (MISSING KEYS: GPG#e42d547b)
Unknown signature /var/cache/apt/archives/libdvdcss_1.2.8-4.1.fc2.fr_i386.rpm: (SHA1) DSA sha1 md5 (GPG) NOT OK (MISSING KEYS: GPG#e42d547b)
Unknown signature /var/cache/apt/archives/libdvdread_0.9.4-5.1.fc2.fr_i386.rpm: (SHA1) DSA sha1 md5 (GPG) NOT OK (MISSING KEYS: GPG#e42d547b)
Unknown signature /var/cache/apt/archives/libpostproc_1.0-0.11.pre5.1.fc2.fr_i386.rpm: (SHA1) DSA sha1 md5 (GPG) NOT OK (MISSING KEYS: GPG#e42d547b)
Unknown signature /var/cache/apt/archives/lirc_0.6.6-2.1.fc2.fr_i386.rpm: (SHA1) DSA sha1 md5 (GPG) NOT OK (MISSING KEYS: GPG#e42d547b)
Unknown signature /var/cache/apt/archives/lzo_1.08-3.1.fc2.fr_i386.rpm: (SHA1) DSA sha1 md5 (GPG) NOT OK (MISSING KEYS: GPG#e42d547b)
Unknown signature /var/cache/apt/archives/xvidcore_1.0.1-1.1.fc2.fr_i386.rpm: (SHA1) DSA sha1 md5 (GPG) NOT OK (MISSING KEYS: GPG#e42d547b)
Unknown signature /var/cache/apt/archives/mplayer-fonts_1.1-2.0.dag_noarch.rpm: (SHA1) DSA sha1 md5 (GPG) NOT OK (MISSING KEYS: GPG#6b8d79e6)
Unknown signature /var/cache/apt/archives/mplayer_1.0-0.11.pre5.1.fc2.fr_i386.rpm: (SHA1) DSA sha1 md5 (GPG) NOT OK (MISSING KEYS: GPG#e42d547b)
E: Error(s) while checking package signatures:
0 unsigned package(s)
10 package(s) with unknown signatures
0 package(s) with illegal/corrupted signatures
eso es lo que me sale cuando intento instalar el mplayer... ¿que se supone que tengo que hacer para resolverlo?