MEPIS key
From MEPIS Documentation Wiki
If you get this error:
W: GPG error: ftp://ftp.mepis.com mepis-8.0 Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY D3F985C51A77B3E9
It means that you are missing MEPIS repo key, to add it copy and paste this block of text in konsole (as root):
cat > mepis.key << EOF -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.4.10 (GNU/Linux) mQGiBE07J0oRBACX//oAKGIzVsLPHpGkNiv7Zs+n4DxjoTwBuQydorrGiTg7f2Ez BhLVB6bSqD3K0fBddPqFMLTZP+asZCgaXiMAdO7KY7O5rgSI/tXW5kNC3eOOrrCO HlUQI1ihhXNV2txQL70h3A+1yPzqdb2njNQikBBxiURW+qHupu66rXUGgwCg1HzD 911p8vlhKH8GeIeSfPbAxc8D/A9DIeiTKOg06jkKNI8OVdNe1KyBGdZpySupY6Wz mPgijLM5jpDDCibRYpYIbzA0gk3XByqX07wu3/FFDVDno7y979Ohfn4Q3r/gTE9c wZiwkc5rZLKrN/Rfh7ccJoNUQWZ8oSv38WVztrsRwpFjU1GlL3mesF1Fr4O6yLfD Mp7/A/sHRTLUKTfuLv8IMY04iU4j3LpQpf5XzB7p2ocjo0e/BOO75V0IiOR3tikV QsFokGHPW+f/ueRRrvPtEht0TYrQx0qOiaE86a61lE1EYzNyPhNAVN8m21z+4CuF bybAL1jfqWv/5VUppB64ygG16UiUjSpnH6H0KBh6lfypAXrBKrQzV2FycmVuIFdv b2Rmb3JkIChNRVBJUyBNYWludGFpbmVycykgPGRldkBtZXBpcy5vcmc+iGEEExEC ACEFAk07J0oCGwMFCwkIBwMFFQoJCAsFFgIDAQACHgECF4AACgkQ5q2BqLn7487F bgCgvDZrL/mf0xS3MaL++Uz9CE68yC0An36sU5ErCpIS/rK+d8Y5cTHWDLaeuQEN BE07J0oQBAC7HHT4qZE0CdqH+7klXwBVzh57TJlAhDCHKOuw328iwxtqQieW0NPt hR0/bJIB1YTNC2YlcLyd5cqk5yfenmPDQziIqCUwRGcdS38ClJ+Uql2TJ/4JeZkV r8z94KAWxcxsQFHsMAF8/oN/1gkJgD1AvB1mdi1We4Nj1/RzVl87awADBgP/RX1i wcabirwb5Aef239dbtui4naDCGNlO67W8zC/qvdBwNlwO7MZEK28aZKSVDeDWzxj 10/d0M/gP4G24w4eIqLcTJB1UIOFys7eKnLmKZAjAUu5tUSJSsb34sD9wcVXKYXB UZcPAcaHeyqJo51AK5MJmOBW0d9z1glZQCrHS5aISQQYEQIACQUCTTsnSgIbDAAK CRDmrYGoufvjziohAJ931MFrzctlKMrv0h96niUw+o/MKACcCPiNGEFTwvHCsm/l CboW/oHfrA0= =MiHN -----END PGP PUBLIC KEY BLOCK----- EOF
Then type or paste:
apt-key add mepis.key