exportfs: Warning: /adir does not support NFS export.

exportfs: Warning: /adir does not support NFS export.

[Norbert van Bolhuis]

I get the following exportfs 1.2.0 warning:

exportfs: Warning: /adir does not support NFS export.

Although everything works fine, I'm worried about this.

The directoy "/adir" is the path to a ISOZFS loop mounted image.
The ISO(Z)FS image itself resides on a UBIFS filesystem (/flashfs/isozfs_image.iso).
The root dir ("/"), as well as "/adir" and "/flashfs" is initramfs.

So afaik I'm exporting a ISOFS, this is supported by nfsd (in the kernel), so
why is the warning there ?

I know UBIFS doesn't support to be (nfsd) exported by the kernel,
but ISO(Z)FS and initramfs do, right ?

Am I doing something illegal ?

any feedback is appreciated, please cc me in the reply as I am not subscribed.

Re: exportfs: Warning: /adir does not support NFS export.

[J. Bruce Fields]

On Tue, Nov 10, 2009 at 05:44:17PM +0100, Norbert van Bolhuis wrote:
>
> I get the following exportfs 1.2.0 warning:
>
> exportfs: Warning: /adir does not support NFS export.
>
> Although everything works fine, I'm worried about this.
>
> The directoy "/adir" is the path to a ISOZFS loop mounted image.

What's ISOZFS?

> The ISO(Z)FS image itself resides on a UBIFS filesystem (/flashfs/isozfs_image.iso).
> The root dir ("/"), as well as "/adir" and "/flashfs" is initramfs.
>
> So afaik I'm exporting a ISOFS, this is supported by nfsd (in the kernel), so
> why is the warning there ?
>
> I know UBIFS doesn't support to be (nfsd) exported by the kernel,
> but ISO(Z)FS and initramfs do, right ?
>
> Am I doing something illegal ?

Which distribution are you using?  Is it something that worked before,
and stopped working, or is this the first time you've tried it?

--b.

Re: exportfs: Warning: /adir does not support NFS export.

[Norbert van Bolhuis]

J. Bruce Fields wrote:
> On Tue, Nov 10, 2009 at 05:44:17PM +0100, Norbert van Bolhuis wrote:
>> I get the following exportfs 1.2.0 warning:
>>
>> exportfs: Warning: /adir does not support NFS export.
>>
>> Although everything works fine, I'm worried about this.
>>
>> The directoy "/adir" is the path to a ISOZFS loop mounted image.
> 
> What's ISOZFS?
> 

The ISO9660 filesystem (with rockridge extension), see mkzftree(1).

>> The ISO(Z)FS image itself resides on a UBIFS filesystem (/flashfs/isozfs_image.iso).
>> The root dir ("/"), as well as "/adir" and "/flashfs" is initramfs.
>>
>> So afaik I'm exporting a ISOFS, this is supported by nfsd (in the kernel), so
>> why is the warning there ?
>>
>> I know UBIFS doesn't support to be (nfsd) exported by the kernel,
>> but ISO(Z)FS and initramfs do, right ?
>>
>> Am I doing something illegal ?
> 
> Which distribution are you using?  Is it something that worked before,
> and stopped working, or is this the first time you've tried it?
> 
> --b.

I'm building an embedded linux system.
This is the first time I try this.

Re: exportfs: Warning: /adir does not support NFS export.

[J. Bruce Fields]

On Wed, Nov 11, 2009 at 08:13:53AM +0100, Norbert van Bolhuis wrote:
> J. Bruce Fields wrote:
>> On Tue, Nov 10, 2009 at 05:44:17PM +0100, Norbert van Bolhuis wrote:
>>> I get the following exportfs 1.2.0 warning:
>>>
>>> exportfs: Warning: /adir does not support NFS export.
>>>
>>> Although everything works fine, I'm worried about this.
>>>
>>> The directoy "/adir" is the path to a ISOZFS loop mounted image.
>>
>> What's ISOZFS?
>>
>
> The ISO9660 filesystem (with rockridge extension), see mkzftree(1).
>
>>> The ISO(Z)FS image itself resides on a UBIFS filesystem (/flashfs/isozfs_image.iso).
>>> The root dir ("/"), as well as "/adir" and "/flashfs" is initramfs.
>>>
>>> So afaik I'm exporting a ISOFS, this is supported by nfsd (in the kernel), so
>>> why is the warning there ?
>>>
>>> I know UBIFS doesn't support to be (nfsd) exported by the kernel,
>>> but ISO(Z)FS and initramfs do, right ?
>>>
>>> Am I doing something illegal ?
>>
>> Which distribution are you using?  Is it something that worked before,
>> and stopped working, or is this the first time you've tried it?
>>
>> --b.
>
> I'm building an embedded linux system.

What source are you using for nfs-utils?

--b.

> This is the first time I try this.
>

Re: exportfs: Warning: /adir does not support NFS export.

[Norbert van Bolhuis]

> 
> What source are you using for nfs-utils?
> 

779cf81044e92cb51ad590960e7b3671  nfs-utils-1.2.0.tar.bz2

I got it from:
http://sourceforge.net/projects/nfs/files/nfs-utils/nfs-utils-1.2.0.tar.bz2

Re: exportfs: Warning: /adir does not support NFS export.

[J. Bruce Fields]

On Wed, Nov 11, 2009 at 03:16:42PM +0100, Norbert van Bolhuis wrote:
>>
>> What source are you using for nfs-utils?
>>
>
> 779cf81044e92cb51ad590960e7b3671  nfs-utils-1.2.0.tar.bz2
>
> I got it from:
> http://sourceforge.net/projects/nfs/files/nfs-utils/nfs-utils-1.2.0.tar.bz2
>

Thanks.  From your description, yes, that sounds like a configuration
that should work.  But maybe there's some detail wrong--could you show
us the full output of the "mount" and "exportfs -v" commands?

--b.

Re: exportfs: Warning: /adir does not support NFS export.

[Norbert van Bolhuis]

> 
> Thanks.  From your description, yes, that sounds like a configuration
> that should work.  But maybe there's some detail wrong--could you show
> us the full output of the "mount" and "exportfs -v" commands?
> 

ok.

# mount
proc on /proc type proc (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
sysfs on /sys type sysfs (rw)
ubi0:rootfs on /flashfs type ubifs (rw)
/flashfs/isd0 on /mountedisd type iso9660 (rw,loop=/dev/loop0,offset=1024)

# exportfs -v
/mountedisd     172.31.0.0/255.255.0.0(ro,wdelay,no_root_squash,no_subtree_check)

thanks for helping me with this.