Error while updating

[shamshir48]

I've been receiving this message for some days and unable to figure out how to fix this problem. The error message is ----
W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.GPG error: http://us.archive.ubuntu.com hardy-updates Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>

W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/hardy-updates/Release

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


my sources.list

# deb cdrom:[Ubuntu 8.04.1 _Hardy Heron_ - Release i386 (20080702.1)]/ hardy main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
## Major bug fix updates produced after the final release of the
## distribution.
deb http://us.archive.ubuntu.com/ubuntu/ hardy-updates main restricted
deb-src http://us.archive.ubuntu.com/ubuntu/ hardy-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## universe WILL NOT receive any review or updates from the Ubuntu security
## team.
deb http://us.archive.ubuntu.com/ubuntu/ hardy universe
deb-src http://us.archive.ubuntu.com/ubuntu/ hardy universe
deb http://us.archive.ubuntu.com/ubuntu/ hardy-updates universe
deb-src http://us.archive.ubuntu.com/ubuntu/ hardy-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://us.archive.ubuntu.com/ubuntu/ hardy multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ hardy multiverse
deb http://us.archive.ubuntu.com/ubuntu/ hardy-updates multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ hardy-updates multiverse

## Uncomment the following two lines to add software from the 'backports'
## repository.
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
# deb http://us.archive.ubuntu.com/ubuntu/ hardy-backports main restricted universe multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ hardy-backports main restricted universe multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository. This software is not part of Ubuntu, but is
## offered by Canonical and the respective vendors as a service to Ubuntu
## users.
# deb http://archive.canonical.com/ubuntu hardy partner
# deb-src http://archive.canonical.com/ubuntu hardy partner

# Line commented out by installer because it failed to verify:
# deb http://security.ubuntu.com/ubuntu hardy-security main restricted
# Line commented out by installer because it failed to verify:
# deb-src http://security.ubuntu.com/ubuntu hardy-security main restricted
# Line commented out by installer because it failed to verify:
# deb http://security.ubuntu.com/ubuntu hardy-security universe
# Line commented out by installer because it failed to verify:
# deb-src http://security.ubuntu.com/ubuntu hardy-security universe
# Line commented out by installer because it failed to verify:
# deb http://security.ubuntu.com/ubuntu hardy-security multiverse
# Line commented out by installer because it failed to verify:
# deb-src http://security.ubuntu.com/ubuntu hardy-security multiverse
# deb http://ppa.launchpad.net/ubuntume.team/ubuntu hardy main # Ubuntu Muslim Edition
# deb-src http://ppa.launchpad.net/ubuntume.team/ubuntu hardy main # Ubuntu Muslim Edition
deb http://download.tuxfamily.org/3v1deb feisty eyecandy
# deb-src http://download.tuxfamily.org/3v1deb feisty eyecandy



please help!

[Pumalite]

Remove the Muslim Edition Feisty line from your /etc/apt/sources.lst

[shamshir48]

Remove the Muslim Edition Feisty line from your /etc/apt/sources.lst

Not helping..... need some serious solution

[Pumalite]

Try changing Server

[zvacet]

sudo apt-get update && sudo apt-get upgrade

[Gourgi]

i can confirm this
i tried 10 different mirrors..
same results :(