Eu tentei atualizar meu software Ubuntu e Java através do gerenciador de atualização. No entanto, depois de tudo sobre algumas horas, não tem nenhum progresso também.
A mensagem de erros mostrada
Atualizações de software corrigem erros, eliminam vulnerabilidades de segurança e fornecer novos recursos.
Eu tentei atualizar e atualizá-lo através do terminal, mas este é o erro que recebo:
$ sudo apt-get upgrade && update
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages have been kept back:
libgnome2-0 linux-generic-pae linux-headers-generic-pae
linux-image-generic-pae
The following packages will be upgraded:
accountsservice apparmor apport apport-gtk apport-symptoms apt
apt-transport-https apt-utils aptdaemon aptdaemon-data base-files bind9-host
coreutils dnsutils firefox firefox-globalmenu firefox-gnome-support
firefox-locale-en firefox-locale-zh-hant gir1.2-gudev-1.0
gir1.2-javascriptcoregtk-3.0 gir1.2-webkit-3.0 gnome-power-manager
icedtea-6-jre-cacao icedtea-6-jre-jamvm jockey-common jockey-gtk
landscape-client-ui-install libaccountsservice0 libapt-inst1.4
libapt-pkg4.12 libbind9-80 libc-bin libc-dev-bin libc6 libc6-dev libdns81
libgl1-mesa-dri libgl1-mesa-glx libglapi-mesa libglu1-mesa libgnome2-common
libgssglue1 libgudev-1.0-0 libisc83 libisccc80 libisccfg82
libjavascriptcoregtk-1.0-0 libjavascriptcoregtk-3.0-0 libldap-2.4-2
liblwres80 libparted0debian1 libudev0 libwebkitgtk-1.0-0
libwebkitgtk-1.0-common libwebkitgtk-3.0-0 libwebkitgtk-3.0-common
libxatracker1 libxcb-composite0 libxcb-dri2-0 libxcb-glx0 libxcb-randr0
libxcb-render0 libxcb-shape0 libxcb-shm0 libxcb-xv0 libxcb1 linux-libc-dev
login lsb-base lsb-release multiarch-support nfs-common onboard
openjdk-6-jre openjdk-6-jre-headless openjdk-6-jre-lib parted passwd
python-apport python-aptdaemon python-aptdaemon.gtk3widgets
python-aptdaemon.pkcompat python-problem-report rpcbind sessioninstaller
thunderbird thunderbird-globalmenu thunderbird-gnome-support
thunderbird-locale-en thunderbird-locale-en-us thunderbird-locale-zh-hant
thunderbird-locale-zh-tw udev unity-greeter update-manager
update-manager-core update-notifier update-notifier-common wpasupplicant
x11-utils xserver-xorg-input-wacom xserver-xorg-video-intel xterm
104 upgraded, 0 newly installed, 0 to remove and 4 not upgraded.
Need to get 25.5 MB/126 MB of archives.
After this operation, 701 kB of additional disk space will be used.
Do you want to continue [Y/n]? y
WARNING: The following packages cannot be authenticated!
base-files coreutils login libc6-dev libc-dev-bin libc-bin libc6
libapt-pkg4.12 apt libapt-inst1.4 libudev0 lsb-base libldap-2.4-2
libparted0debian1 libxcb1 libgl1-mesa-dri libgl1-mesa-glx libglapi-mesa
libxcb-glx0 libgudev-1.0-0 libxatracker1 libxcb-composite0 libxcb-dri2-0
libxcb-randr0 libxcb-render0 libxcb-shape0 libxcb-shm0 libxcb-xv0 rpcbind
lsb-release update-manager update-manager-core aptdaemon
python-aptdaemon.pkcompat python-aptdaemon.gtk3widgets python-aptdaemon
aptdaemon-data update-notifier update-notifier-common libglu1-mesa
multiarch-support passwd apt-utils udev accountsservice libaccountsservice0
apt-transport-https parted python-problem-report python-apport apport
apport-gtk apport-symptoms gir1.2-gudev-1.0 gnome-power-manager jockey-gtk
jockey-common landscape-client-ui-install libgnome2-common nfs-common
onboard unity-greeter wpasupplicant x11-utils xserver-xorg-input-wacom
xserver-xorg-video-intel xterm sessioninstaller
Install these packages without verification [y/N]? y
Err http://my.archive.ubuntu.com/ubuntu/ precise-updates/main base-files i386 6.5ubuntu6.4
403 Forbidden
Err http://my.archive.ubuntu.com/ubuntu/ precise-updates/main coreutils i386 8.13-3ubuntu3.1
403 Forbidden
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
O que devo fazer a seguir?