how to ignore checksum in apt-get update

[Abdelkader Belahcene <abelahcene@gmail.com>]

HI,

I got the entire site from debian and ubuntu ( with apt-mirror) (not necessary stable),
 sometimes there is a problem of the cheksum,  I want to disable the check sum,

in apt-get update command.

How to tell apt-get to ignore  the checksum.

thanks a lot