在Debian(lenny)7 32bit盒子上安装PHP4

我试图在Debian 7 32bit盒子上安装PHP4,但是我遇到了以下情况

root@php4:~# apt-get update Get:1 http://snapshot.debian.org lenny Release.gpg [189 B] Hit http://snapshot.debian.org lenny Release Ign http://snapshot.debian.org lenny Release Hit http://snapshot.debian.org lenny/main Sources/DiffIndex Hit http://snapshot.debian.org lenny/main i386 Packages/DiffIndex Hit http://ftp.us.debian.org wheezy Release.gpg Hit http://security.debian.org wheezy/updates Release.gpg Ign http://snapshot.debian.org lenny/main Translation-en_US Ign http://snapshot.debian.org lenny/main Translation-en Hit http://ftp.us.debian.org wheezy Release Hit http://security.debian.org wheezy/updates Release Hit http://ftp.us.debian.org wheezy/main i386 Packages Hit http://ftp.us.debian.org wheezy/main Translation-en Hit http://security.debian.org wheezy/updates/main i386 Packages Hit http://security.debian.org wheezy/updates/main Translation-en Fetched 189 B in 0s (229 B/s) Reading package lists... Done W: GPG error: http://snapshot.debian.org lenny Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A70DAF536070D3A1 

我做了以下修复它

  gpg --keyserver hkp://subkeys.pgp.net --recv-keys A70DAF536070D3A1 gpg --export --armor A70DAF536070D3A1 | sudo apt-key add - 

现在我得到以下KEYEXPIRED错误,并确定如何解决。 即使谷歌没有帮助

  root@php4:~# apt-get update Get:1 http://snapshot.debian.org lenny Release.gpg [189 B] Hit http://snapshot.debian.org lenny Release Ign http://snapshot.debian.org lenny Release Hit http://snapshot.debian.org lenny/main Sources/DiffIndex Hit http://security.debian.org wheezy/updates Release.gpg Hit http://snapshot.debian.org lenny/main i386 Packages/DiffIndex Hit http://ftp.us.debian.org wheezy Release.gpg Hit http://security.debian.org wheezy/updates Release Ign http://snapshot.debian.org lenny/main Translation-en_US Hit http://ftp.us.debian.org wheezy Release Hit http://security.debian.org wheezy/updates/main i386 Packages Ign http://snapshot.debian.org lenny/main Translation-en Hit http://ftp.us.debian.org wheezy/main i386 Packages Hit http://security.debian.org wheezy/updates/main Translation-en Hit http://ftp.us.debian.org wheezy/main Translation-en Fetched 189 B in 0s (275 B/s) Reading package lists... Done W: GPG error: http://snapshot.debian.org lenny Release: The following signatures were invalid: KEYEXPIRED 1246455239 

任何帮助?