When installing qemu in CEpH, the following error occurs: user requested feature rados block device configure was not able to find it.

In centos6.3, to use CEpH block device, you must install a later version of qemu.

Install qemu-1.5.2 after CEpH is installed

# Tar-xjvf qemu-1.5.2.tar.bz2

# Cd qemu-1.5.2

#./Configure -- enable-RBD

You must add the -- enable-RBD option so that qemu can support the RBD protocol.

In this step, an error may be reported:

Error: user requested feature rados block Device

Configure was not able to find it

This is because the CEpH-devel package is not installed. Check that librados2 and librbd1 have been installed.

After the installation, configure will not report an error. Then execute

# Make

# MAke install

You can.