que renvoi
ls -al /var/cache/yum/updates/repomd.xml
Je pense que ce fichier n'existe pas
Si c'est le cas voici le mien
cat /var/cache/yum/updates/repomd.xml
<?xml version="1.0" ?><repomd xmlns="http://linux.duke.edu/metadata/repo">
<data type="other_db">
<location href="repodata/other.sqlite.bz2"/>
<checksum type="sha">403d7d97c8ac95d2b2e3f63f719018a2ecc35ae5</checksum>
<timestamp>1212780751</timestamp>
<open-checksum type="sha">24ecddb2757d03c0d94725638e8cc970097e7cee</open-checksum>
<database_version>10</database_version>
</data>
<data type="other">
<location href="repodata/other.xml.gz"/>
<checksum type="sha">9ad231edb625019a81476dc1d806ed29a5834850</checksum>
<timestamp>1212780699</timestamp>
<open-checksum type="sha">d86dd1a9320701fca5e88a3453b4db3661edcac4</open-checksum>
</data>
<data type="filelists_db">
<location href="repodata/filelists.sqlite.bz2"/>
<checksum type="sha">a26d56120c4209d302d176826b88d83bcdb49ab3</checksum>
<timestamp>1212780831</timestamp>
<open-checksum type="sha">37d9552ef74f81bd257424cf668ba4e0dd7b7645</open-checksum>
<database_version>10</database_version>
</data>
<data type="filelists">
<location href="repodata/filelists.xml.gz"/>
<checksum type="sha">5ca9ea99d899da0c458ba3465ee4face6fd7558d</checksum>
<timestamp>1212780699</timestamp>
<open-checksum type="sha">c8515893dd5323d1127970194b474ca53b0444ce</open-checksum>
</data>
<data type="primary_db">
<location href="repodata/primary.sqlite.bz2"/>
<checksum type="sha">b722d59f12108c7a2ec059660c0c980d2f77b4a6</checksum>
<timestamp>1212780867</timestamp>
<open-checksum type="sha">fec9c4203b42309a27fb9d1907c849cb1cfd61f5</open-checksum>
<database_version>10</database_version>
</data>
<data type="primary">
<location href="repodata/primary.xml.gz"/>
<checksum type="sha">8426d1c516e1211e76205bd1ee46b7154b9670e4</checksum>
<timestamp>1212780698</timestamp>
<open-checksum type="sha">efe13d3e1f14c2fca96dc20985fbea17a0d35239</open-checksum>
</data>
<data type="group">
<location href="repodata/comps-f9.xml"/>
<checksum type="sha">c491e7f7479496490188c2a0f6d3dfdf0e8a8ca4</checksum>
<timestamp>1212452966</timestamp>
</data>
<data type="updateinfo"><location href="repodata/updateinfo.xml.gz"/><checksum type="sha">da5942b87ee95b920574dbe0136042ae039b7bad</checksum><timestamp>1212787799</timestamp><open-checksum type="sha">78ecbc5a9a3826dfaef137bbedb4dcc04e8bea30</open-checksum></data></repomd>
et voilà les permissions
ls -al /var/cache/yum/updates/repomd.xml
-rw-r--r-- 1 root root 2390 jun 7 09:53 /var/cache/yum/updates/repomd.xml