dkms client module

dkms client module

[Zenon Panoussis]

Hello all

I'm new to ceph and I'm having troubles with the client module.

I'm testing on SL6. RHEL6 and all its derivatives use kernel 2.6.32 and
will continue doing so for the next seven years. Therefore, the only
reasonable way to get ceph into RHEL6 is dkms. Luckily, that's already
supported.

I got ceph-client-standalone from git and fixed the specific 2.6.32
problems according to http://marc.info/?l=ceph-devel&m=129813044300561&w=2 .

Then I run into this:

 ./dkms/add-to-dkms-and-build

 Creating symlink /var/lib/dkms/ceph/2.6.37/source ->
                 /usr/src/ceph-2.6.37

 DKMS: add Completed.

 Kernel preparation unnecessary for this kernel.  Skipping...

 Building module:
 cleaning build area....
 make KERNELRELEASE=2.6.32-71.24.1.el6.x86_64 -C ceph/....(bad exit status: 2)

 Error! Bad return status for module build on kernel: 2.6.32-71.24.1.el6.x86_64 (x86_64)
 Consult the make.log in the build directory
 /var/lib/dkms/ceph/2.6.37/build/ for more information.
 0
 0

make.log says:

 DKMS make.log for ceph-2.6.37 for kernel 2.6.32-71.24.1.el6.x86_64 (x86_64)
 Wed Apr 13 23:47:41 CEST 2011
 make: Entering directory `/var/lib/dkms/ceph/2.6.37/build/ceph'
 make: *** No targets.  Stop.
 make: Leaving directory `/var/lib/dkms/ceph/2.6.37/build/ceph'

It seems to me there should be a Makefile in the root of ceph-client-standalone
that points make to the Makefiles of the subdirectories, but I'm an ignorant
wrt to make, so I'm not sure about anything.

Suggestions anyone how to get around this?

Z

Re: dkms client module

[Yehuda Sadeh Weinraub]

On Wed, Apr 13, 2011 at 3:04 PM, Zenon Panoussis <oracle@provocation.net> wrote:
...
> I got ceph-client-standalone from git and fixed the specific 2.6.32
> problems according to http://marc.info/?l=ceph-devel&m=129813044300561&w=2 .
>
> Then I run into this:
>
>  ./dkms/add-to-dkms-and-build
>
>  Creating symlink /var/lib/dkms/ceph/2.6.37/source ->
>                 /usr/src/ceph-2.6.37
>
>  DKMS: add Completed.
>
>  Kernel preparation unnecessary for this kernel.  Skipping...
>
>  Building module:
>  cleaning build area....
>  make KERNELRELEASE=2.6.32-71.24.1.el6.x86_64 -C ceph/....(bad exit status: 2)
>
>  Error! Bad return status for module build on kernel: 2.6.32-71.24.1.el6.x86_64 (x86_64)
>  Consult the make.log in the build directory
>  /var/lib/dkms/ceph/2.6.37/build/ for more information.
>  0
>  0
>
> make.log says:
>
>  DKMS make.log for ceph-2.6.37 for kernel 2.6.32-71.24.1.el6.x86_64 (x86_64)
>  Wed Apr 13 23:47:41 CEST 2011
>  make: Entering directory `/var/lib/dkms/ceph/2.6.37/build/ceph'
>  make: *** No targets.  Stop.
>  make: Leaving directory `/var/lib/dkms/ceph/2.6.37/build/ceph'
>
> It seems to me there should be a Makefile in the root of ceph-client-standalone
> that points make to the Makefiles of the subdirectories, but I'm an ignorant
> wrt to make, so I'm not sure about anything.
>

As the ceph-client-standalone provides 3 different modules (libceph,
ceph, rbd), you should probably try building it as 3 separate modules
and not as a single module. There isn't a single Makefile, and you
should treat ceph-client-standalone/libceph,
ceph-client-standalone/ceph and ceph-client-standalone/rbd as
standalone modules when building them.

Yehuda
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