1.每次手动挂载
/dev/sr0是光驱的设备名，/dev/cdrom代表光驱
/dev/sr0 与/dev/cdrom
/dev/cdrom 只是一个到sr0的符号链接
mount /dev/sr0 /mnt 挂载
umount /dev/sr0 /mnt 卸载
vi /etc/yum.repos.d/rhel-rource.repos
yum list
2.上传iso包，自动挂载
[root@node2 software]# grep iso /etc/fstab /software/redhat6.8.iso /mnt iso9660 loop 0 0
[root@node2 software]# ll total 3787780 -rw-r--r-- 1 root root 3878682624 May 15 06:44 rhel-server-6.8-x86_64-dvd.iso [root@node2 software]# mv rhel-server-6.8-x86_64-dvd.iso redhat6.8.iso [root@node2 software]# ll total 3787780 -rw-r--r-- 1 root root 3878682624 May 15 06:44 redhat6.8.iso [root@node2 software]# mount /software/redhat6.8.iso /mnt mount: /software/redhat6.8.iso is not a block device (maybe try `-o l oop'?)[root@node2 software]# mount /software/redhat6.8.iso /mnt -o loop [root@node2 software]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda3 45G 29G 14G 68% / tmpfs 1.9G 483M 1.4G 26% /dev/shm /dev/sda1 283M 39M 229M 15% /boot /software/redhat6.8.iso 3.7G 3.7G 0 100% /mnt [root@node2 software]# umount /mnt/ [root@node2 software]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda3 45G 29G 14G 68% / tmpfs 1.9G 483M 1.4G 26% /dev/shm /dev/sda1 283M 39M 229M 15% /boot [root@node2 software]# vi /etc/fstab [root@node2 software]# grep iso /etc/fstab /software/redhat6.8.iso /mnt iso9660 loop 0 0 [root@node2 software]# mount -a [root@node2 software]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda3 45G 29G 14G 68% / tmpfs 1.9G 483M 1.4G 26% /dev/shm /dev/sda1 283M 39M 229M 15% /boot /software/redhat6.8.iso 3.7G 3.7G 0 100% /mnt [root@node2 software]# yum install gcc Loaded plugins: product-id, refresh-packagekit, search-disabled-repos, security, subscription-manager This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register. Setting up Install Process rhel-source | 4.1 kB 00:00 ... Package gcc-4.4.7-17.el6.x86_64 already installed and latest version Nothing to do [root@node2 software]#
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