yum-3.2.21-9.fc11.noarch
rpm-4.6.0-4.fc11.i386

 This is interesting, picking at random:

http://ftp-stud.hs-esslingen.de/pub/fedora/linux/development/i386/os/repodata/repomd.xml

...that has a timestamp of:

1236929122 = Fri Mar 13 07:25:22 2009 GMT

...and current metalink data from MM says these are the only valid ones:

1236935468 = Fri Mar 13 09:11:08 2009 GMT
1236848429 = Thu Mar 12 09:00:29 2009 GMT
1236757743 = Wed Mar 11 07:49:03 2009 GMT
1236585837 = Mon Mar  9 08:03:57 2009 GMT
1236503059 = Sun Mar  8 09:04:19 2009 GMT
1236416352 = Sat Mar  7 08:59:12 2009 GMT

...and this isn't just a weird timestamp issue:

repomd.xml = md5/f5c618c800538b5b08a0a7fbdc59d7ba
metalink   = md5/473e9c063ba2b761ed923ea9ac59667d
             md5/13b06fcf64d44762b28de825b287739b

With any luck, it'll be fixed by a bugfix to mirrormanager, whereby the job that updates MM's idea of what's in the database could crash.

http://git.fedorahosted.org/git/?p=mirrormanager;a=commit;h=a32d0e3ce5a7f3bd7ce52c9e6c92c18de25001fb

i have this bug too on my 64 bit sys

[root@localhost ~]# yum update
/usr/lib/yum-plugins/merge-conf.py:22: DeprecationWarning: the md5 module is deprecated; use hashlib instead
  import os, sys, md5
Loaded plugins: changelog, dellsysidplugin2, fastestmirror, merge-conf, refresh-packagekit
Determining fastest mirrors
rawhide/metalink                                                                                                       | 8.2 kB     00:00     
 * rawhide: ftp.tudelft.nl
 * rpmfusion-free-rawhide: fedora.tu-chemnitz.de
 * rpmfusion-nonfree-rawhide: fedora.tu-chemnitz.de
rawhide                                                                                                                | 3.4 kB     00:00     
http://ftp.tudelft.nl/download.fedora.redhat.com/linux/development/x86_64/os/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for rawhide
Trying other mirror.
rawhide                                                                                                                | 3.4 kB     00:00     
http://fedora.tu-chemnitz.de/pub/linux/fedora/linux/development/x86_64/os/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for rawhide
Trying other mirror.
rawhide                                                                                                                | 3.4 kB     00:00     
http://ftp.nluug.nl/pub/os/Linux/distr/fedora/linux/development/x86_64/os/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for rawhide
Trying other mirror.
rawhide                                                                                                                | 3.4 kB     00:00     
http://ftp.df.lth.se/pub/fedora/linux/development/x86_64/os/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for rawhide
Trying other mirror.
rawhide                                                                                                                | 3.4 kB     00:00     
http://ftp.lip6.fr/ftp/pub/linux/distributions/fedora/development/x86_64/os/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for rawhide
Trying other mirror.
rawhide                                                                                                                | 3.4 kB     00:00     
http://fedora.uib.no/fedora/linux/development/x86_64/os/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for rawhide
Trying other mirror.
rawhide                                                                                                                | 3.4 kB     00:00     
http://ftp.fi.muni.cz/pub/linux/fedora/linux/development/x86_64/os/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for rawhide
Trying other mirror.
rawhide                                                                                                                | 3.4 kB     00:00     
http://ftp.linux.cz/pub/linux/fedora/linux/development/x86_64/os/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for rawhide
Trying other mirror.
rawhide                                                                                                                | 3.4 kB     00:00     
http://ftp-stud.hs-esslingen.de/pub/fedora/linux/development/x86_64/os/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for rawhide
Trying other mirror.
rawhide                                                                                                                | 3.4 kB     00:00     
http://ftp.iasi.roedu.net/mirrors/fedora.redhat.com/linux/development/x86_64/os/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for rawhide
Trying other mirror.
rawhide                                                                                                                | 3.4 kB     00:00     
http://ftp.cc.uoc.gr/pub/fedora/linux/development/x86_64/os/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for rawhide
Trying other mirror.
rawhide                                                                                                                | 3.4 kB     00:00     
http://ftp.upjs.sk/pub/fedora/linux/development/x86_64/os/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for rawhide
Trying other mirror.
rawhide                                                                                                                | 3.4 kB     00:00     
http://fedora.nano-box.net/linux/development/x86_64/os/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for rawhide
Trying other mirror.
rawhide                                                                                                                | 3.4 kB     00:00     
http://ftp.unina.it/pub/linux/distributions/fedora/linux/development/x86_64/os/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for rawhide
Trying other mirror.
rawhide                                                                                                                | 3.4 kB     00:00     
rawhide/primary_db                                                                                                     |  10 MB     00:17     
rpmfusion-free-rawhide                                                                                                 | 2.7 kB     00:00     
rpmfusion-free-rawhide/primary_db                                                                                      | 327 kB     00:00     
rpmfusion-nonfree-rawhide                                                                                              | 2.7 kB     00:00     
rpmfusion-nonfree-rawhide/primary_db                                                                                   | 102 kB     00:00     
Setting up Update Process
No Packages marked for Update

Have the same issue here. Is there a fix taht should be already in place? It is blocking when you want to test current rawhide.

Adding to F11Beta tracker

investigating further.  Looks like an error parsing some rsync directory listing.

Matt, an error, where? In MM or in yum?

rsync started returning these lines:

file has vanished: "/pub/fedora/linux/updates/10/x86_64/thunderbird-2.0.0.19-1.fc10.x86_64.rpm"

which the update-master-directory-list script in MM wasn't parsing.  Fix should be live in ~20 minutes.

With the above fix in place, current metalink?repo=rawhide&arch=x86_64 is returning correct information:

<?xml version="1.0" encoding="utf-8"?>
<metalink version="3.0" xmlns="http://www.metalinker.org/" type="dynamic" pubdate="Mon, 23 Mar 2009 14:12:41 GMT" generator="mirrormanager" xmlns:mm0="http:/
/fedorahosted.org/mirrormanager">
  <files>
    <file name="repomd.xml">
      <mm0:timestamp>1237796468</mm0:timestamp>
      <size>3446</size>
      <verification>
        <hash type="md5">3ee51880195178afd8f48d9f6a0d7597</hash>
        <hash type="sha1">17d55b9f07c593c760a845c9c2191dc6368a6bc7</hash>
      </verification>

Please 'yum clean metadata' and try updating rawhide and confirm success.

Matt, thanks for the quick fix. Did the steps described above - and they worked fine for me. Can update now again. Going to the next dependency issue now ;)

commit 0c90131f9ded3c06f157aee0d0a0030d72dc9330
Author: Matt Domsch <matt>
Date:   Mon Mar 23 13:11:02 2009 -0500

    umdl: fix rsync listing parsing

    On occasion, rsync will throw a message such as
      file has vanished: "/pub/fedora/linux/updates/10/x86_64/thunderbird-2.0.0.19-1.fc10.x86_64.rpm"
    into the directory listing stream.  The parser wouldn't handle this
    and would die.  Fix the parser to ignore malformed lines.

    Also, detection of a line as being a directory was prone to failure,
    if the MOTD included a line that began with the letter 'd'.  Make this
    recognition somewhat more robust.