Teej, as M. Vefa pointed out, the problem is not in the distribution but on the Ubuntu HTTP servers.
The Content-Encoding header mentioned by Bob Drzyzgula in the original report seems to be gone now. However, Content-Type is now application/x-gzip which is incorrect for a PGP signature. I haven't tested upgrading through a proxy recently, but it's still possible that this header could break that. It looks like mod_mime matches extensions in the middle of a file name if the final extension is unknown. This explains why for files with a .tar.gz.gpg extension, the Ubuntu servers used to indicate a gzip encoding and a tar content type, and why they now return a gzip content type. Here is what the Ubuntu servers currently reply: $ wget -q --no-cache --save-headers http://archive.ubuntu.com/ubuntu/dists/hardy-proposed/main/dist-upgrader-all/0.87.31/hardy.tar.gz.gpg $ cat hardy.tar.gz.gpg HTTP/1.1 200 OK Date: Sun, 17 Jan 2010 13:00:31 GMT Server: Apache/2.2.8 (Ubuntu) Last-Modified: Thu, 29 Jan 2009 15:38:41 GMT ETag: "bd-461a0e1fda240" Accept-Ranges: bytes Content-Length: 189 Keep-Alive: timeout=15, max=100 Connection: Keep-Alive Content-Type: application/x-gzip -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQBJgc2BQJdur0N9BbURAnhDAJwNh53DLg9jF8c3+dcjTKM+CnpK6gCggG9e 2Fi2CguhyGmEktTiVEQT4Hk= =5Ug/ -----END PGP SIGNATURE----- $ wget -q --no-cache --save-headers http://archive.ubuntu.com/ubuntu/dists/lucid/main/dist-upgrader-all/0.131.3/lucid.tar.gz.gpg akaih...@morris:/tmp$ cat lucid.tar.gz.gpg HTTP/1.1 200 OK Date: Sun, 17 Jan 2010 13:04:35 GMT Server: Apache/2.2.8 (Ubuntu) Last-Modified: Tue, 12 Jan 2010 19:27:03 GMT ETag: "bd-47cfca3780fc0" Accept-Ranges: bytes Content-Length: 189 Keep-Alive: timeout=15, max=100 Connection: Keep-Alive Content-Type: application/x-gzip -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQBLTM0HQJdur0N9BbURAgoQAJ9jwi/0EBi+Hd5VWivJ90SYhRFwsQCggxR/ Y2Z4yunLdiqmR9x2DrOUxM4= =tv7O -----END PGP SIGNATURE----- -- Ubuntu archive server returning incorrect content-encoding https://bugs.launchpad.net/bugs/245219 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs