පහල තියෙන command line ටික terminal එකට් ඇතුලත කරන්න. එතකොට් nano එකෙන් අදාල *.list file එක open වේවි. එකට repo එක paste කරල save කරගන්න.
sudonano/etc/apt/sources.list.d/kali.list
sudonano/etc/apt/sources.list.d/debian.list
ඉගව්ට් update කරන්න (sudo apt update). එතකොට් පහල E , W & N අවොත්,
W: GPG error: http://ftp.debian.org/debian stable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8B48AD6246925553 NO_PUBKEY 7638D0442B90D010 NO_PUBKEY EF0F382A1A7B6500
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://kali.cs.nctu.edu.tw/kali kali-bleeding-edge InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY ED444FF07D8D0BF6