hi all, just tried 'yum update' this morning and found this error below. anybody could help me to tell what's the problem? last week I did 'yum update' without any problem. thanks! -denny [root@mymachine]# yum update Setting up Update Process Setting up Repos update 100% |=========================| 951 B 00:00 base 100% |=========================| 1.1 kB 00:00 addons 100% |=========================| 951 B 00:00 extras 100% |=========================| 1.1 kB 00:00 Reading repository metadata in from local files primary.xml.gz 100% |=========================| 15 kB 00:00 http://mirror.centos.org/centos/4/updates/i386/repodata/primary.xml.gz: [Errno -1] Metadata file does not match checksum Trying other mirror. Error: failure: repodata/primary.xml.gz from update: [Errno 256] No more mirrors to try.