ERROR: modinfo: could not find module rbd FATAL

萨尔法保护

　　CENTOS 6.5 安装CEPH RDB 错误
ERROR: modinfo: could not find module rbd
FATAL: Module rbd not found.
rbd: modprobe rbd failed! (256)
　　rpm --import http://elrepo.org/RPM-GPG-KEY-elrepo.org
rpm -Uvh http://elrepo.org/elrepo-release-6-5.el6.elrepo.noarch.rpm
yum --enablerepo=elrepo-kernel install kernel-ml
　　编辑etc/grub.conf
　　将default = 1 改为default = 0
http://www.cnblogs.com/ruiy/p/data:image/png;base64,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
　　解决办法:
Once you have deployed the almighty CEPH storage, you will want to be able to actualy use it (RBD).
　　Before we begin, some notes:
　　Current CEPH version: 0.67 (“dumpling”).
OS: Centos 6.4 x86_64 (running some VMs on KVM, basic CentOS qemu packages, nothing custom)
　　Since CEPH RBD module was first introduced with kernel 2.6.34 (and current RHEL/CentOS kernel is 2.6.32) – that means we need a newer kernel.
　　So, one of the options for the new kernel is, 3.x from elrepo.org:
　　rpm --import http://elrepo.org/RPM-GPG-KEY-elrepo.org
rpm -Uvh http://elrepo.org/elrepo-release-6-5.el6.elrepo.noarch.rpm
yum --enablerepo=elrepo-kernel install kernel-ml # will install 3.11.latest, stable, mainline
# or
yum --enablerepo=elrepo-kernel install kernel-lt # will install 3.0.latest, long term supported
　　CentOS KVM and CEPH – client side setup
Posted on October 14, 2013 by andrijars · Leave a comment
Once you have deployed the almighty CEPH storage, you will want to be able to actualy use it (RBD).
　　Before we begin, some notes:
　　Current CEPH version: 0.67 (“dumpling”).
OS: Centos 6.4 x86_64 (running some VMs on KVM, basic CentOS qemu packages, nothing custom)
　　Since CEPH RBD module was first introduced with kernel 2.6.34 (and current RHEL/CentOS kernel is 2.6.32) – that means we need a newer kernel.
　　So, one of the options for the new kernel is, 3.x from elrepo.org:
　　rpm –import http://elrepo.org/RPM-GPG-KEY-elrepo.org
rpm -Uvh http://elrepo.org/elrepo-release-6-5.el6.elrepo.noarch.rpm
yum –enablerepo=elrepo-kernel install kernel-ml # will install 3.11.latest, stable, mainline
# or
yum –enablerepo=elrepo-kernel install kernel-lt # will install 3.0.latest, long term supported
If you want that new kernel to boot by default, edit /etc/grub.conf, and change the Default=1 to Default=0, and reboot.
　　That’s for the Kernel side.
　　If you want to use qemu with RBD, you will also need newer qemu packages – CEPH does provide some “untested”, “use it at your own risk” packages, that are rhel/centos based verions, just with RBD support added – well, running them on productional cloud, and all seems fine so far for me…
　　wget http://ceph.com/packages/ceph-extras/rpm/rhel6/x86_64/qemu-kvm-0.12.1.2-2.355.el6.2.cuttlefish.x86_64.rpm
wget http://ceph.com/packages/ceph-extras/rpm/rhel6/x86_64/qemu-img-0.12.1.2-2.355.el6.2.cuttlefish.x86_64.rpm
wget http://ceph.com/packages/ceph-extras/rpm/rhel6/x86_64/qemu-kvm-tools-0.12.1.2-2.355.el6.2.cuttlefish.x86_64.rpm
　　After done, in order to actually install those CEPH-provided versions of binaries, we need to download and install CEPH, that is the required libraries librados and librbd:
　　rpm --import 'https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/release.asc'
rpm -Uvh http://ceph.com/rpm-dumpling/el6/noarch/ceph-release-1-0.el6.noarch.rpm
yum install ceph
　　If all fine (will not talk here about creating the /etc/ceph.conf file and keyring for the client – maybe another post), then we are ready to install CEPH version of qemu packages:
　　First, we need to remove the original packages from Centos 6, then install the new ones:
　　rpm -e --nodeps qemu-img
rpm -e --nodeps qemu-kvm
rpm -e --nodeps qemu-kvm-tools
rpm -Uvh qemu-*
　　And… that’s it. If you run the qemu-img | grep “Supported formats” you will see RBD as being one od those.
You may shutdown and restart all your existing VMs, in order to load the new qemu binaries.