Is nginx in Pre-built format ready for Ubuntu 12.10?

[Sharl Jimh Tsin]

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Hi,all:
    follow the steps in download page of nginx site.and apt-get gives
those error messages below:

sharljimhtsin at sharl-laptop:~$ sudo apt-get update | grep nginx
忽略 http://nginx.org quantal InRelease
忽略 http://nginx.org quantal Release.gpg
忽略 http://nginx.org quantal Release
错误 http://nginx.org quantal/nginx Sources
错误 http://nginx.org quantal/nginx i386 Packages
忽略 http://nginx.org quantal/nginx Translation-zh_CN
忽略 http://nginx.org quantal/nginx Translation-zh
忽略 http://nginx.org quantal/nginx Translation-en
W: 无法下载
http://nginx.org/packages/ubuntu/dists/quantal/nginx/source/Sources
404  Not Found

W: 无法下载
http://nginx.org/packages/ubuntu/dists/quantal/nginx/binary-i386/Packages
 404  Not Found

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

as that,i can not find and install it via nginx official source
repository.

- -- 
Best regards,
Sharl.Jimh.Tsin (From China *Obviously Taiwan INCLUDED*)

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