OS ubuntu 12.10
Linux csn4 3.5.0-17-generic #28-Ubuntu SMP Tue Oct 9 19:31:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux


root@node4:/mnt/ceph# apt-get update
Ign http://us.archive.ubuntu.com quantal InRelease
Ign http://us.archive.ubuntu.com quantal-updates InRelease
Ign http://us.archive.ubuntu.com quantal-backports InRelease
Ign http://security.ubuntu.com quantal-security InRelease
...................... concatenated ...........
Ign http://us.archive.ubuntu.com quantal-backports/restricted Translation-en_US
Ign http://us.archive.ubuntu.com quantal-backports/universe Translation-en_US
Err http://ceph.com quantal/main amd64 Packages
  404  Not Found
Err http://ceph.com quantal/main i386 Packages
  404  Not Found
Ign http://ceph.com quantal/main Translation-en_US
Ign http://ceph.com quantal/main Translation-en
Fetched 327 kB in 9s (34.0 kB/s)
W: Failed to fetch http://ceph.com/debian/dists/quantal/main/binary-amd64/Packages  404  Not Found

W: Failed to fetch http://ceph.com/debian/dists/quantal/main/binary-i386/Packages  404  Not Found

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