在Red Hat EnterPRise linux Server release 5.7 上配置YUM本地源時，遇到了"Errno 5] OSError: [Errno 2] No such file or directory xxxx",花了點時間搞清楚錯誤的來龍去脈。特此記錄一下：
將Redhat 5.7的光盤鏡像拷貝到了/mnt/cdrom/LinuxSrc目錄下，配置了rhel-media.repo文件，如下所示
[root@DB-Server yum.repos.d]# more rhel-media.repo [media]
name=Red Hat Enterprise Linux 5.7
baseurl=file:///mnt/cdrom/LinuxSrc
enabled=1
gpgcheck=0
gpgkey=file:///mnt/cdrom/LinuxSrc/RPM-GPG-KEY-redhat-release
執行yum clean all命令后，執行yum makecache遇到了下面錯誤：
[root@DB-Server yum.repos.d]# yum clean allLoaded plugins: product-id, security, subscription-manager
Updating Red Hat repositories.
Cleaning up Everything
[root@DB-Server yum.repos.d]# yum makecacheLoaded plugins: product-id, security, subscription-manager
Updating Red Hat repositories.
file:///mnt/cdrom/LinuxSrc/repodata/repomd.xml: [Errno 5] OSError: [Errno 2] No such file or directory: '/mnt/cdrom/LinuxSrc/repodata/repomd.xml'Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: media. Please verify its path and try again[root@DB-Server yum.repos.d]#
出現這個錯誤的根本原因在于RHEL 5.x 版本與RHEL 6.x 版本的rpm包存放路徑不同：
RHEL 5.x : ../Server 例如：我案例環境位于/mnt/cdrom/LinuxSrc/Server 下。
RHEL 6.x : ../Packages
所以還在于上面的baseurl參數設置錯誤。那么我們可以通過兩種方法解決這個問題：
方法1：配置正確的baseurl參數。
[root@DB-Server yum.repos.d]# vi rhel-media.repo [media]
name=Red Hat Enterprise Linux 5.7
baseurl=file:///mnt/cdrom/LinuxSrc/Server
enabled=1
gpgcheck=0
gpgkey=file:///mnt/cdrom/LinuxSrc/RPM-GPG-KEY-redhat-release
方法2：使用createrepo命令創建本地源目錄，將其指向baseurl指定的目錄[root@DB-Server Server]# rpm -ivh createrepo-0.4.11-3.el5.noarch.rpmwarning: createrepo-0.4.11-3.el5.noarch.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%] 1:createrepo ########################################### [100%][root@DB-Server Server]# createrepo --update /mnt/cdrom/LinuxSrcPrevious repo file missing: /mnt/cdrom/LinuxSrc/repodata/primary.xml.gz
3388/3388 - VT/etherboot-roms-5.4.4-15.el5.x86_64.rpm mm
Saving Primary metadata
Saving file lists metadata
Saving other metadata
You have new mail in /var/spool/mail/root[root@DB-Server Server]# yum makecacheLoaded plugins: product-id, security, subscription-manager
Updating Red Hat repositories.
media | 951 B 00:00
media/filelists | 3.1 MB 00:00
media/other | 11 MB 00:00
media/primary | 1.1 MB 00:00
media 3388/3388
media 3388/3388
media 3388/3388
Metadata Cache Created
[root@DB-Server Server]#
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