Due to the package DRBD does exist in the default yum repositories of RHEL 6/CentOS 6, we need to choose an extra package repository for installing DRBD by yum. In the moment, we will point to an extras RPM repository as ELRepo. (# 2)
At first, we have to realize O.S. name、version and information about current kernel by “cat /etc/redhat-release” & "uname -ri”.
When understand the related information, we will begin to import the ELRepo public key by “rpm --import http://elrepo.org/RPM-GPG-KEY-elrepo.org”
To install ELRepo for CentOS-6, we have to execute the command “rpm -Uvh http://elrepo.org/elrepo-release-6-5.el6.elrepo.noarch.rpm” (# 3)
So does that we have already added a new yum repository “ELRepo” now.
If we also want to use ELRepo mirror system and the package never is installed, we can execute the command “yum install yum-plugin-fastestmirror” 
Maybe we prefer to keep some packages at the CentOS provided version so that we want to limit these packages don’t be updated by extra repository. For this reason, the package will not be automatically upgraded or installed by ELRepo repository.
To disable ELRepo repository, open the file “/etc/yum.repos.d/repo.repo” and change enabled parameter from 1 to 0
We can search DRBD packages via the command “yum --enablerepo=elrepo search drbd” to realize which version is in the ELRepo repository.
To begin to install drbd via ELRepo by the command “yum --enablerepo=elrepo install –y drbd84-utils kmod-drbd84”
To view which version of DRBD file is installed
To know the DRBD kernel module
To realize which the version of the kernel module is installed
Of course, we have to install kernel module package and the related packages for the user land code if the Linux kernel is older than 2.6.33.
Reference :
(# 1) When we refer to the Linux releases with DRBD Official Web Site, we can know its relationship is between Linux releases and DRBD releases now.
| Linux-release | DRBD-release |
| 2.6.33 | 8.3.7 |
| 2.6.34 | 8.3.7 |
| 2.6.35 | 8.3.8 |
| 2.6.36 | 8.3.8.1 |
| 2.6.37 | 8.3.9 |
| 2.6.38 | 8.3.9 |
| 2.6.39 | 8.3.10 |
| 3.0 ~ 3.4 | 8.3.11 |
| 3.5 ~ 3.7 | 8.3.13 |
| 3.8 | 8.4.2 |
(# 2) ELRepo --- RPM repository for Enterprise Linux package
(# 3) If the CentOS host is behind the proxy server and want to use yum with a Proxy Server, we need to configure yum to go through proxy server.
For a specific user with the default bash shell, we need to add some setting into the user’s shell profile ~/.bash_profile
If the proxy server doesn’t require the authentication, we need to configure the profile settings as the following environment variable.
If the proxy server require the authentication, we have to add the following variable including a username and password.
For all users that connect to the proxy server, we can configure /etc/yum.conf to enable all yum operations to use a proxy server.
(# 3) If the CentOS host is behind the proxy server and want to use yum with a Proxy Server, we need to configure yum to go through proxy server.
For a specific user with the default bash shell, we need to add some setting into the user’s shell profile ~/.bash_profile
If the proxy server doesn’t require the authentication, we need to configure the profile settings as the following environment variable.
If the proxy server require the authentication, we have to add the following variable including a username and password.
For all users that connect to the proxy server, we can configure /etc/yum.conf to enable all yum operations to use a proxy server.
沒有留言:
張貼留言