Bug 726935

Description of problem:
I created a local repository on my hard drive on a "master server node" in order to perform a network install. I test this repository locally by using the yum client to download packages into a file-based file system mounted as a loop device and formatted with ext3. 

The repository is set up so that repodata is in a different tree than the actual directory containing raw packages (/Everything/). So the layout is as follows:
/clus/yumrepo/repodata/<yum repository dirs and files>
/clus/fedora-packages/<all packages>

The httpd server is properly configured so that it can see the entire /clus root. One can browse to the repository and view it.

Version-Release number of selected component (if applicable):
yum-3.2.28.fc14
yum-utils-1.1.28-1.fc14

How reproducible:
You need to set up a local yum repository by mirroring or by using another tool such as yumdownloader (see the yum-utils package). 

Steps to Reproduce:
1. Create the repository with createrepo. Assume below that this repository
  is configured with the id 'repo-local' so that one can pull from it using
  yum --enablerepo=repo-local.
  *  Make sure that you give createrepo the parameter --base-url with a url that
   uses a non-standard port.
  *  When you use createrepo, make sure that you create the repository metadata in a different directory than that which stores the packages. This is important.
2. Set your httpd server to the non-standard port (8018) and point it at the repository.
3. Set up an artificial file system by creating a file and mounting as a drive using a loop device:
  dd if=/dev/zero of=diskimage.img oflag=direct bs=1M count=0 seek=4096
  mkfs.ext3 diskimage.img
4. Mount the pretend file system
  mkdir /mnt/pretendfs
  mount diskimage.img /mnt/pretendfs
5. Use the yum client to "install" a file system onto the pretend file system:
  yum --disablerepo=* --enablerepo=repo-local --install-root=/mnt/pretendfs install filesystem basesystem

Actual results:
You should see: 
---- SNIP ----
Loaded plugins: auto-update-debuginfo, downloadonly, langpacks, presto, refresh-packagekit
Adding en_US to language list
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package basesystem.noarch 0:10.0-3 set to be installed
--> Processing Dependency: setup for package: basesystem-10.0-3.noarch
---> Package filesystem.x86_64 0:2.4.35-1.fc14 set to be installed
--> Running transaction check
---> Package setup.noarch 0:2.8.28-1.fc14 set to be installed
--> Finished Dependency Resolution

Dependencies Resolved

===============================================================================================================================================================
 Package                              Arch                             Version                                   Repository                               Size
===============================================================================================================================================================
Installing:
 basesystem                           noarch                           10.0-3                                    cluster-local                           4.2 k
 filesystem                           x86_64                           2.4.35-1.fc14                             cluster-local                           1.0 M
Installing for dependencies:
 setup                                noarch                           2.8.28-1.fc14                             cluster-local                           152 k

Transaction Summary
===============================================================================================================================================================
Install       3 Package(s)

Total download size: 1.1 M
Installed size: 660 k
Downloading Packages:
Setting up and reading Presto delta metadata
Processing delta metadata
Package(s) data still to download: 1.1 M
http://node1.joyanet/clus/fedora-packages/basesystem-10.0-3.noarch.rpm: [Errno 14] PYCURL ERROR 7 - ""
Trying other mirror.
http://node1.joyanet/clus/fedora-packages/filesystem-2.4.35-1.fc14.x86_64.rpm: [Errno 14] PYCURL ERROR 7 - ""
Trying other mirror.
http://node1.joyanet/clus/fedora-packages/setup-2.8.28-1.fc14.noarch.rpm: [Errno 14] PYCURL ERROR 7 - ""
Trying other mirror.


Error Downloading Packages:
  filesystem-2.4.35-1.fc14.x86_64: failed to retrieve filesystem-2.4.35-1.fc14.x86_64.rpm from cluster-local
error was [Errno 14] PYCURL ERROR 7 - ""
  basesystem-10.0-3.noarch: failed to retrieve basesystem-10.0-3.noarch.rpm from cluster-local
error was [Errno 14] PYCURL ERROR 7 - ""
  setup-2.8.28-1.fc14.noarch: failed to retrieve setup-2.8.28-1.fc14.noarch.rpm from cluster-local
error was [Errno 14] PYCURL ERROR 7 - ""
---- SNIP ---


Expected results:
What you want to see is the following:
---- SNIP ----
Loaded plugins: auto-update-debuginfo, downloadonly, langpacks, presto, refresh-packagekit
Adding en_US to language list
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package basesystem.noarch 0:10.0-3 set to be installed
--> Processing Dependency: setup for package: basesystem-10.0-3.noarch
---> Package filesystem.x86_64 0:2.4.35-1.fc14 set to be installed
--> Running transaction check
---> Package setup.noarch 0:2.8.28-1.fc14 set to be installed
--> Finished Dependency Resolution

Dependencies Resolved

===============================================================================================================================================================
 Package                              Arch                             Version                                   Repository                               Size
===============================================================================================================================================================
Installing:
 basesystem                           noarch                           10.0-3                                    cluster-local                           4.2 k
 filesystem                           x86_64                           2.4.35-1.fc14                             cluster-local                           1.0 M
Installing for dependencies:
 setup                                noarch                           2.8.28-1.fc14                             cluster-local                           152 k

Transaction Summary
===============================================================================================================================================================
Install       3 Package(s)

Total download size: 1.1 M
Installed size: 660 k
Downloading Packages:
Setting up and reading Presto delta metadata
Processing delta metadata
Package(s) data still to download: 1.1 M
(1/3): basesystem-10.0-3.noarch.rpm                                                                                                     | 4.2 kB     00:00     
(2/3): filesystem-2.4.35-1.fc14.x86_64.rpm                                                                                              | 1.0 MB     00:00     
(3/3): setup-2.8.28-1.fc14.noarch.rpm                                                                                                   | 152 kB     00:00     
---------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                           24 MB/s | 1.1 MB     00:00     
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing     : setup-2.8.28-1.fc14.noarch                                                                                                              1/3 
  Installing     : filesystem-2.4.35-1.fc14.x86_64                                                                                                         2/3 
  Installing     : basesystem-10.0-3.noarch                                                                                                                3/3 

Installed:
  basesystem.noarch 0:10.0-3                                                 filesystem.x86_64 0:2.4.35-1.fc14                                                

Dependency Installed:
  setup.noarch 0:2.8.28-1.fc14                                                                                                                                 

Complete!
---- SNIP ----


Additional info:
Mirroring is a fast way to create a yum repository. However, createrepo will accept a directory with any number of .rpm files in it. Once the directory is created, the rest is straightforward. Check that the repository is working correctly in your browser using the non-standard port after you have started the httpd server.

It looks like yum grabs the repository url from /etc/yum.repos.d and fetches file lists, but then uses the file lists to locate a separate url (here, the separate directory containing all the packages.) Somewhere along the way, it might be turning the URL into a programmatic form and dropping the port number along the way.