Linux mount命令是经常会使用到的命令，它用于挂载Linux系统外的文件。
1.镜像挂载到系统指定目录下：
[root@master cdrom]# mount -t auto /mnt/cdrom[root@master cdrom]# mount -t iso9660 /dev/cdrom /mnt/cdrom/[root@master cdrom]# mount /dev/sr0 /mnt/cdrom/三种方式均可以挂载到 /mnt/cdrom/
2.永久挂载到指定目录
修改 ： /etc/fstab
[root@master cdrom]# more /etc/fstab
## /etc/fstab# Created by anaconda on Sun Aug 12 11:37:00 2018## Accessible filesystems, by reference, are maintained under '/dev/disk'# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info#/dev/mapper/rhel-root / xfs defaults 0 0UUID=24af8522-d86c-40d4-8383-6b090474431f /boot xfs defaults 0 0/dev/mapper/rhel-swap swap swap defaults 0 0/tmp/swapfree swap swap defaults 0 0/dev/sdb1 /storehouse ext2 defaults 0 0/dev/sr0 /mnt/cdrom/ iso9660 defaults 0 0 #添加这一条记录3.查看系统文件格式[root@master cdrom]# df -hT文件系统 类型 容量 已用 可用 已用% 挂载点/dev/mapper/rhel-root xfs 27G 19G 8.2G 70% /devtmpfs devtmpfs 977M 0 977M 0% /devtmpfs tmpfs 993M 0 993M 0% /dev/shmtmpfs tmpfs 993M 9.2M 984M 1% /runtmpfs tmpfs 993M 0 993M 0% /sys/fs/cgroup/dev/sr0 iso9660 3.8G 3.8G 0 100% /mnt/cdrom/dev/sdb1 ext2 7.8G 19M 7.4G 1% /storehouse/dev/sda1 xfs 1014M 161M 854M 16% /boottmpfs tmpfs 199M 8.0K 199M 1% /run/user/42tmpfs tmpfs 199M 0 199M 0% /run/user/1002tmpfs tmpfs 199M 0 199M 0% /run/user/0
制作yum源
查看挂载：
[root@master yum.repos.d]# df -h
Filesystem Size Used Avail Use% Mounted on/dev/sda2 18G 2.5G 15G 15% /tmpfs 931M 68K 931M 1% /dev/shm/dev/sda1 291M 39M 238M 14% /boot/dev/sr0 3.6G 3.6G 0 100% /media/rhel --挂载的光盘安装一些包,到挂载的目录下，进Packages
cd /media/rhel/Packages
安装以下三个包：
[root@master Packages]# rpm -ivh python-deltarpm-3.5-0.5.20090913git.el6.x86_64.rpm
warning: python-deltarpm-3.5-0.5.20090913git.el6.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID fd431d51: NOKEYerror: Failed dependencies: deltarpm = 3.5-0.5.20090913git.el6 is needed by python-deltarpm-3.5-0.5.20090913git.el6.x86_64[root@master Packages]# rpm -ivh deltarpm-3.5-0.5.20090913git.el6.x86_64.rpm warning: deltarpm-3.5-0.5.20090913git.el6.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID fd431d51: NOKEYPreparing... ########################################### [100%] 1:deltarpm ########################################### [100%][root@master Packages]# rpm -ivh python-deltarpm-3.5-0.5.20090913git.el6.x86_64.rpm warning: python-deltarpm-3.5-0.5.20090913git.el6.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID fd431d51: NOKEYPreparing... ########################################### [100%] 1:python-deltarpm ########################################### [100%][root@master Packages]# rpm -ivh createrepo-0.9.9-18.el6.noarch.rpm warning: createrepo-0.9.9-18.el6.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID fd431d51: NOKEYPreparing... ########################################### [100%] 1:createrepo ########################################### [100%]然后：
cd /etc/yum.repos.d
touch rhel-media.repo
vi rhel-media.repo
[rhel-media] name=Redhat6.5 baseurl=file:///mnt/cdrom enabled=1 gpgcheck=0 gpgkey=file:///media/rhel/RPM-GPG-KEY-redhat-release
直接验证：
[root@master yum.repos.d]# yum install php
Loaded plugins: product-id, refresh-packagekit, security, subscription-managerThis system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.rhel-media | 3.9 kB 00:00 ... rhel-media/primary_db | 3.1 MB 00:00 ... Setting up Install ProcessResolving Dependencies--> Running transaction check---> Package php.x86_64 0:5.3.3-26.el6 will be installed--> Processing Dependency: php-common(x86-64) = 5.3.3-26.el6 for package: php-5.3.3-26.el6.x86_64--> Processing Dependency: php-cli(x86-64) = 5.3.3-26.el6 for package: php-5.3.3-26.el6.x86_64--> Running transaction check---> Package php-cli.x86_64 0:5.3.3-26.el6 will be installed---> Package php-common.x86_64 0:5.3.3-26.el6 will be installed--> Finished Dependency ResolutionDependencies Resolved=============================================================================================================== Package Arch Version Repository Size===============================================================================================================Installing: php x86_64 5.3.3-26.el6 rhel-media 1.1 MInstalling for dependencies: php-cli x86_64 5.3.3-26.el6 rhel-media 2.2 M php-common x86_64 5.3.3-26.el6 rhel-media 525 kTransaction Summary===============================================================================================================Install 3 Package(s)Total download size: 3.8 MInstalled size: 13 MIs this ok [y/N]: yDownloading Packages:---------------------------------------------------------------------------------------------------------------Total 165 MB/s | 3.8 MB 00:00 Running rpm_check_debugRunning Transaction TestTransaction Test SucceededRunning TransactionWarning: RPMDB altered outside of yum. Installing : php-common-5.3.3-26.el6.x86_64 1/3 Installing : php-cli-5.3.3-26.el6.x86_64 2/3 Installing : php-5.3.3-26.el6.x86_64 3/3 rhel-media/productid | 1.7 kB 00:00 ... Verifying : php-5.3.3-26.el6.x86_64 1/3 Verifying : php-cli-5.3.3-26.el6.x86_64 2/3 Verifying : php-common-5.3.3-26.el6.x86_64 3/3 Installed: php.x86_64 0:5.3.3-26.el6 Dependency Installed: php-cli.x86_64 0:5.3.3-26.el6 php-common.x86_64 0:5.3.3-26.el6 Complete!成功！
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