[Unionfs] Can't mount NFS-exported union anymore in unionfs-1.4

[Wilhelm Meier]

Am Donnerstag, 30. November 2006 05:31 schrieb hooanon05 at yahoo.co.jp:
> Wilhelm,
> Do you mean you have two diskless machines, and both of them mount the
> same unionfs as root filesystem?

No! Just one! (in the test-case now, in production more than 100)

> If so, will you try mounting your unionfs on nfs server from two nfs
> clients without nfsroot? In this case, I am afraid that lockd may be a
> problem.

I tested it with two client doing a normal nfs-mount and performing a find 
through the mount: works fine with and without the mount-option nolock.

>
> And will you try unionfs debug option, in order to find which function
> returns "Operation not supported"?

Did it now (debug=18) with the diskless-client mounting the nfs as root-fs. I 
attached the log. Most messages correspond to the tftp-transfer of the kernel 
(which comes also from the unionfs via tftp and which is obviously o.k.). 
Seach for "authenticated mount request" and you get the start of the 
nfs-sequence.

>
> And if you can, invoke interactive shell in your linuxrc just before it
> exist or it kicks init process, and try ls to test lokkup operations.

Will try this later with initramfs ...

>
> Junjiro Okajima

-- 
Wilhelm Meier
email: wilhelm.meier at fh-kl.de
-------------- next part --------------
A non-text attachment was scrubbed...
Name: messages.gz
Type: application/x-gzip
Size: 3525 bytes
Desc: not available
Url : http://www.fsl.cs.sunysb.edu/pipermail/unionfs/attachments/20061130/96b6bd46/messages.bin