Re: /sys/class/rbd does not exist after loading ceph module

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I though all ceph client, including RBD, was already included in
kernel 2.6.34. so I just download it from kernel.org and compile it,
like make menuconfig, make, make modues_install etc.

Do you mean that I still need patch kernel 2.6.34 and build the new ceph.ko?


> I would like to try the RBD feature of Ceph. I am following
> http://ceph.newdream.net/wiki/Rbd,聽; but failed at :

* did you really compile the ceph.ko module from source?
* did you verify that you actually loaded the right ceph.ko module and
not stock ceph.ko?

general note: do use the new 0.21. you won't get happy with 0.20.2.

- Thomas


On Fri, Jul 30, 2010 at 4:41 PM, Xiaoguang Liu <syslxg@xxxxxxxxx> wrote:
>  I would like to try the RBD feature of Ceph. I am following
> http://ceph.newdream.net/wiki/Rbd, ; but failed at :
>
>  echo "xxx name=admin rbd foo" > /sys/class/rbd/add
>
>
>  It was because folder /sys/class/rbd does not exist. But ceph kernel
> module is loaded and I can mount -t ceph xxxx:/ /mnt/ceph.
>
>  I am using kernel 2.6.34.1 on fedora 13.
>
>  the following symbols are set in .config while compiling the kernel.
>
>  CONFIG_CEPH_FS=m
>  CONFIG_CEPH_FS_PRETTYDEBUG=y
>
>  Ceph 0.20.2 is installed by yum.
>
>  Did I miss anything?
>
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