nfs share with aufs - fsid option

Hi there,

i have a "aufs" poolshare that ist without problems as smb share in the linux client.
As nfs share it makes trouble.

without the fsid=0 option the attempt to mount is possible, but i have no rights to access the folder
syslog: Cannot export /export/multimedia-pool, possibly unsupported filesystem or fsid= required

with the fsid=0 (recommended) option:
mount.nfs4: mounting 192.168.1.4:/multimedia-pool failed, reason given by server: No such file or directory
syslog: /export/multimedia-pool and /export have same filehandle for 192.168.1.1/24, using first

can anyone help me please?

greetings

thank you ryeco,

with option fsid=1 i can mount the share and have needed rights
why is option fsid=0 not possible? Whats the theoretical background of
this behaviour? Can´t nowhere find a satisfying answer.

greetings

thank you!
I try to unterstand knowledgebase article.
There ist written:
"An fsid can be set anywhere from 0 - 255. However, 0 has special meaning for NFS v4, so if you are using NFS v4, only use fsid=0 on the top (fake root) of the export hierarchy"
I tought sardaukar is using nfs v4?! i mount with "mount -t ntfs4" so i have use fsid=0?! but the i can´t mount "No such file or directory"
where is the bug?

therefore another fsid value i attempted like fsid=2 is functional,
but i don´t understand the matter in reference with a aufs pooling.
nfs v4 should export all shares unter root export?!
The main is the success, thanks a lot!
nice if someone give me someday the unterstanding to aufs and nfs4 export

how about the setting fsid=0, fsid=x on other users?

if a fsid != 0 is needed why is this not the default setting info in "aufs"? May i be wrong?

"aufs" is an extra (virtual) block device and needs therfore its own unique number to identifying the filesystem export?! no bind to fake root.
Ist this right ryecoaaron?

http://linuxtoolkit.blogspot.d…s4-on-centos-5-and-6.html

thanks