CentOS6.5添加rbd模块

Posted 2020-07-06

 [[email protected] opt]# modprobe rbd

  FATAL: Module rbd not found.

Once you have deployed the almighty CEPH storage, you will want to be able to actualy use it (RBD).

Since CEPH RBD module was first introduced with kernel 2.6.34 (and CentOS6.5 kernel is 2.6.32) – that means we need a newer kernel.

※0 当前内核版本

[[email protected] opt]# uname -r
2.6.32-431.el6.x86_64

※1 安装kernel-ml

[[email protected] opt]# rpm --import http://elrepo.org/RPM-GPG-KEY-elrepo.org
[[email protected] opt]# rpm -Uvh http://elrepo.org/elrepo-release-6-5.el6.elrepo.noarch.rpm
[[email protected] opt]# yum --enablerepo=elrepo-kernel install kernel-ml

.................................................

Dependencies Resolved

================================================================================
 Package        Arch        Version                    Repository          Size
================================================================================
Installing:
 kernel-ml      x86_64      4.6.0-1.el6.elrepo         elrepo-kernel       39 M

Transaction Summary
================================================================================

.................................................

[[email protected] opt]# yum --enablerepo=elrepo-kernel install kernel-lt

※2 修改/etc/grup.conf

If you want that new kernel to boot by default, edit /etc/grub.conf, and change the default=1 to default=0, and reboot

※3 加载并验证

[[email protected] opt]# modprobe rbd

[[email protected] opt]# lsmod | grep rbd
rbd                    61440  0
libceph               176128  1 rbd