CentOS mount CDROM, ISO file as source

Machines in the production system environment are not connected to the Internet, so they are all using local sources.

First, you need to mount the CDROM, or ISO file, to a local directory.

1. Mount the optical drive: put the CDROM into the optical drive.

$ mkdir/media/cdrom # Build mount point Directory

$ Mount/dev/cdrom/media/cdrom #挂载光驱, if there are multiple optical drives, there will be multiple CDROM devices in the/dev directory, such as CDROM1, CDROM2

Note: When using a virtual machine, there are often cases where CDROM cannot be ejected. At this point, you can use the Fuser-km/dev/cdrom command to kill the process using CDROM, and then eject the disc.

2. Mount the ISO file: Copy the ISO file to the system

$ mkdir/media/iso # Build mount point Directory

$ mount-o loop/home/user/xxxx.ios/media/iso #执行挂载.

Then, configure the Yum source.

1. Enter the/etc/yum.repo.d/directory with more than one source configuration file in this directory.

In CentOS, for example,

Centos-base.repo This file is a CentOS-configured network source that cannot be used in an intranet environment. Renaming invalidates the file. MV Centos-base.repo Centos-base.repo.bak

Centos-media.repo This file is typically configured with a local source to configure the local source for the template.

[C6-media-cdrom] # source label, Yum is used to mark different sources, so different profiles are set to different marks.
name=centos-$releasever-media # Name
#baseurl =file:///media/centos/
# file:///media/cdrom/
# file:///media/cdrecorder/
baseurl=file:///media/cdrom/#源路径, the source path conforms to the directory rules of the Linux source. In general, there is a./repodata directory under this directory.
Gpgcheck=1 # can be configured to 0, indicating no checksum.
Enabled=1 # is configured to 1 o'clock, the source of this configuration is enabled, configured to 0 o'clock, not enabled.
Gpgkey=file:///etc/pki/rpm-gpg/rpm-gpg-key-centos-6

2, configure the intranet source of HTTP.

Start the httpd service on the source server

$ service httpd Start

Mount the local ISO file to the directory of the HTTPD service/var/www/html/

$ mount-o Loop xxx.iso/var/www/html/iso #挂载 ISO file

$ ln-sf/home/user/source/var/www/html/source # Make a soft connection to the local directory.

At this point, the source data is accessed through Http://host/iso or Http://host/source.

If there is a 403 error accessing the HTTP service, the probable cause

1) The parent directory of the local source does not add execute permission, through chmod +x/home/user

2) need to close iptables firewall, service iptables stop

3) SELinux is not closed. You need to modify the/etc/selinux/config file, modify it to selinux=disabled, and then restart the machine.

Configure the local network source.

Modify the Baseurl=http://host/source in the repo file

After the configuration is complete, you can use the Yum check-update to update the source and check the configuration for errors.

CentOS Mount CDROM, ISO file as source