Hi Jeremy,

Yesterday, Jim Garlick sent me a patch to make unionfs 1.1.5 finally
working with the SL4 kernel. Now unionfs seems to be much more stable.
I have build unionfs rpms for kernel 2.6.9-42.0.2.EL, you find them in
http://linux.web.psi.ch/dist/scientific/43/beta/

SRPM:
unionfs-1.1.5-1.sl4.psi.src.rpm

RPMs:
unionfs-1.1.5-1.sl4.psi.i686.rpm
unionfs-1.1.5-1.sl4.psi.x86_64.rpm
kernel-module-unionfs-2.6.9-42.0.2.EL-1.1.5-1.sl4.psi.i686.rpm
kernel-module-unionfs-2.6.9-42.0.2.EL-1.1.5-1.sl4.psi.x86_64.rpm
kernel-module-unionfs-2.6.9-42.0.2.ELsmp-1.1.5-1.sl4.psi.i686.rpm
kernel-module-unionfs-2.6.9-42.0.2.ELsmp-1.1.5-1.sl4.psi.x86_64.rpm

If you want to rebuilt them for an older SL4 kernel, you have the remove
the patch "unionfs-1.1.5-kernel-2.6.9-42.0.2.EL.patch", see the spec file.

I would be very interested, if you can give me feedback about the
stability of unionfs 1.1.5 on SL4. My first tests were quite promising.

Urs




Urs Beyerle wrote:
> Hi,
>
> Concerning unionfs: building kernel-modules for unionfs should not be
> a big thing. However, as far as I have tested, unionfs does not run
> 100% stable with the SL kernel (2.6.9). For the LiveCD it is usable,
> but I would not use it on a full productive system.
>
> For the LiveCD I use unionfs version 1.0.14 with a patch for inode.c
> (see below). After version 1.0.14 the design of unionfs was changed
> significantly and newer versions were no longer running with kernel
> 2.6.9 - as far I have tested.
>
> Recently, unionfs provides a version tree 1.1.x, which should run on
> kernels 2.6.9 -2.6.15, see
> http://www.fsl.cs.sunysb.edu/project-unionfs.html
>
> Although I could compile version 1.1.5 against the kernel 2.6.9 and
> mounting unionfs works, I get a "Inappropriate ioctl for device"
> error, when using unionctl. I have written to the unionfs mailing
> list, but no solution so far:
> http://www.fsl.cs.sunysb.edu/pipermail/unionfs/2006-June/004579.html
>
> If somebody has any idea or solution for this problem, I would be very
> grateful!
> It would also help to make the LiveCD more stable.
>
> Meanwhile I can try to build some kernel-module rpms for testing.
>
> Urs
>
>
>
>
> Jeremy Sanders wrote:
>> Hi -
>>
>> We've got a cluster server we'd like to use unionfs on. Does anyone
>> have a nice kernel module package for this?
>>
>> I see it is used on the SL livecd.
>>
>> I also see there's a fuse-based version called FunionFS, but I don't
>> know how well this works...
>>
>> http://funionfs.apiou.org/index.php?lng=en
>>
>> Jeremy
>>