Description of problem: When I attempt to update packages via the "Package
Updater" I get the following Dump when I click the "Apply Updates" button:

Component: Software Updater
Summary: TBccefa5c9 yumRepo.py:426:__get:RepoError: failure:
nspr-devel-4.6.5-0.6.0.fc6.i386.rpm from updates: [Errno 256] No more mirrors to
try.

Traceback (most recent call last):
  File "/usr/sbin/pup", line 433, in _apply
    self.applyChanges(self.mainwin)
  File "/usr/lib/python2.4/site-packages/pirut/__init__.py", line 559, in
applyChanges
    self.checkDeps(mainwin)
  File "/usr/lib/python2.4/site-packages/pirut/__init__.py", line 324, in checkDeps
    self.populateTs(keepold=0)
  File "/usr/lib/python2.4/site-packages/yum/depsolve.py", line 150, in populateTs
    self.downloadHeader(txmbr.po)
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 760, in
downloadHeader
    cache=repo.http_caching != 'none',
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 454, in getHeader
    cache=cache,
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 426, in __get
    raise Errors.RepoError, "failure: %s from %s: %s" % (relative, self.id, e)
RepoError: failure: nspr-devel-4.6.5-0.6.0.fc6.i386.rpm from updates: [Errno
256] No more mirrors to try.

Local variables in innermost frame:
e: [Errno 256] No more mirrors to try.
start: 440
url: None
text: None
self: updates
cache: True
reget: None
relative: nspr-devel-4.6.5-0.6.0.fc6.i386.rpm
headers: ()
checkfunc: (<bound method PackageUpdater.verifyHeader of
<__main__.PackageUpdater object at 0x848e84c>>,
(<yum.sqlitesack.YumAvailablePackageSqlite object at 0x97a792c>, 1), {})
copy_local: 1
end: 10829
local: //var/cache/yum/updates/headers/nspr-devel-4.6.5-0.6.0.fc6.i386.hdr


Version-Release number of selected component (if applicable):


How reproducible:
Two out of two times

Steps to Reproduce:
1. View Updates
2. Apply Updates
3.
  
Actual results:


Expected results:


Additional info:
Attempted to perform system updates via "yum update" and after having multiple
"Header is not complete" on all mirrors for the
.../i386/elfutils-libelf-devel-0.126-1.fc6.i386.rpm file yum comcluded with the
following:
Error: failure: elfutils-lebelf-devel-0.126-1.fc6.i386.rpm from updates: [Errno
256] No more mirrors to try.