[root@vmb ~]# mkdir -p /mnt/cdrom [root@vmb ~]# mount /dev/cdrom /mnt/cdrom mount: block device /dev/cdrom is write-protected, mounting read-only [root@vmb ~]# [root@vmb ~]# [root@vmb ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup00-LogVol01 18G 4.8G 12G 30% / /dev/sda1 190M 13M 168M 8% /boot tmpfs 500M 0 500M 0% /dev/shm /dev/hdc 4.1G 4.1G 0 100% /mnt/cdrom
[root@vmb ~]# cd /etc/yum.repos.d/ [root@vmb yum.repos.d]# ll total 8 -rw-r--r-- 1 root root 254 Nov 13 2012 rhel-debuginfo.repo
[root@vmb yum.repos.d]# cat rhel-debuginfo.repo_back [rhel-debuginfo] name=Red Hat Enterprise Linux $releasever - $basearch - Debug baseurl=ftp://ftp.redhat.com/pub/redhat/linux/enterprise/$releasever/en/os/$basearch/Debuginfo/ enabled=0 gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
[root@vmb yum.repos.d]# cat rhel-debuginfo.repo [rhel-debuginfo] name=Red Hat Enterprise Linux $releasever - $basearch - Debug baseurl=file:///mnt/cdrom/Server--------------------------> 此处有变化 enabled=1 --------------------------> 此处有变化</span> gpgcheck=1 gpgkey=file:///mnt/cdrom/RPM-GPG-KEY-redhat-release
[root@rhel59 yum.repos.d]# yum clean all Loaded plugins: product-id, security, subscription-manager This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register. Cleaning up Everything
[root@rhel59 yum.repos.d]# yum list | grep gcc compat-libgcc-296.i386 2.96-138 installed libgcc.i386 4.1.2-54.el5 installed libgcc.x86_64 4.1.2-54.el5 installed compat-gcc-34.x86_64 3.4.6-4.1 rhel-debuginfo compat-gcc-34-c++.x86_64 3.4.6-4.1 rhel-debuginfo compat-gcc-34-g77.x86_64 3.4.6-4.1 rhel-debuginfo gcc.x86_64 4.1.2-54.el5 rhel-debuginfo gcc-c++.x86_64 4.1.2-54.el5 rhel-debuginfo gcc-gfortran.x86_64 4.1.2-54.el5 rhel-debuginfo gcc-gnat.x86_64 4.1.2-54.el5 rhel-debuginfo gcc-java.x86_64 4.1.2-54.el5 rhel-debuginfo gcc-objc.x86_64 4.1.2-54.el5 rhel-debuginfo gcc-objc++.x86_64 4.1.2-54.el5 rhel-debuginfo gcc44.x86_64 4.4.7-1.el5 rhel-debuginfo gcc44-c++.x86_64 4.4.7-1.el5 rhel-debuginfo gcc44-gfortran.x86_64 4.4.7-1.el5 rhel-debuginfo [root@vmb yum.repos.d]#
原文地址：http://blog.csdn.net/msdnchina/article/details/42149745
