Hi all,

I am new to Kali and facing some problems during kali update. Following are my installation details

Version: Linux kali 3.14-kali1-amd64 #1 SMP Debian 3.14.4-1kali1 (2014-05-14) x86_64 GNU/Linux
Platform: VirtualBox 4.3.12
Issue:

apt-get sources.list:
deb http://http.kali.org/kali kali main non-free contrib
deb http://security.kali.org/kali-security kali/updates main contrib non-free

root@kali:~# apt-get update
Get:1 http://http.kali.org kali Release.gpg [116 B]
Get:2 http://security.kali.org kali/updates Release.gpg [137 B]
Get:3 http://http.kali.org kali Release [112 B]
Ign http://http.kali.org kali Release
E: GPG error: http://http.kali.org kali Release: The following signatures were invalid: NODATA 1 NODATA 2


[or]

root@kali:~# apt-get update
Get:1 http://security.kali.org kali/updates Release.gpg [137 B]
Get:2 http://security.kali.org kali/updates Release [133 B]
Err http://security.kali.org kali/updates Release

Fetched 270 B in 0s (273 B/s)
Reading package lists... Done
W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://security.kali. org kali/updates Release: The following signatures were invalid: NODATA 1 NODATA 2

W: Failed to fetch http://security.kali.org/kali-securi...pdates/Release

W: Some index files failed to download. They have been ignored, or old ones used instead.




I have tried following solutions:

apt-get clean
apt-get autoclean
then tried updating again. But still no success.

Please provide me some solution.