Fwd: Problem with sharing mounted iso

Fwd: Problem with sharing mounted iso

[Johan GUILBAUD]

Hello !

I have a problem to access a mounted ISO through NFS protocol

i have a server (RHEL6) on which are mounted ISOs
i have a lot of client accessing files into ISO via the NFS share

My problem is clients (RHEL5 & 6, Solaris 8 & 10) don't see content of
ISO folder

In example :

on NFS server i have a folder /pub/ where the ISO are mounted (ie :
with the iso mybeautifuliso.iso on the mount point
"/pub/mybeautifuliso/") there are also, for test, text files in /pub/
NFS shares content of /pub


Client see tests text files, and folder "mybeautifuliso" but this one
is empty...


thanks for help

--
GUILBAUD Johan

Re: Problem with sharing mounted iso

[bjschuma]

(This should have made it to Johan, but I forgot to enable plain text
mode so vger rejected it)

Hi Johan,

Does the server include "crossmnt" in its /etc/exports options for
/pub?  By default, clients aren't able to cross mountpoints in the
export directory.  Including this option should help!

- Bryan

On Mon, Jul 8, 2013 at 8:47 AM, Johan GUILBAUD <guilbaud.johan@gmail.com> wrote:
> Hello !
>
> I have a problem to access a mounted ISO through NFS protocol
>
> i have a server (RHEL6) on which are mounted ISOs
> i have a lot of client accessing files into ISO via the NFS share
>
> My problem is clients (RHEL5 & 6, Solaris 8 & 10) don't see content of
> ISO folder
>
> In example :
>
> on NFS server i have a folder /pub/ where the ISO are mounted (ie :
> with the iso mybeautifuliso.iso on the mount point
> "/pub/mybeautifuliso/") there are also, for test, text files in /pub/
> NFS shares content of /pub
>
>
> Client see tests text files, and folder "mybeautifuliso" but this one
> is empty...
>
>
> thanks for help
>
> --
> GUILBAUD Johan
> --
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Re: Problem with sharing mounted iso

[Jeff Layton]

On Mon, 8 Jul 2013 14:47:00 +0200
Johan GUILBAUD <guilbaud.johan@gmail.com> wrote:

> Hello !
> 
> I have a problem to access a mounted ISO through NFS protocol
> 
> i have a server (RHEL6) on which are mounted ISOs
> i have a lot of client accessing files into ISO via the NFS share
> 
> My problem is clients (RHEL5 & 6, Solaris 8 & 10) don't see content of
> ISO folder
> 
> In example :
> 
> on NFS server i have a folder /pub/ where the ISO are mounted (ie :
> with the iso mybeautifuliso.iso on the mount point
> "/pub/mybeautifuliso/") there are also, for test, text files in /pub/
> NFS shares content of /pub
> 
> 
> Client see tests text files, and folder "mybeautifuliso" but this one
> is empty...
> 
> 
> thanks for help
> 

Exports don't cross mountpoints by default, so if you exported "/pub"
no filesystem mounted under it will be automatically exported. The best
solution is to explicitly export those filesystems as well -- i.e. add
an export of "/pub/mybeautifuliso". Then, when clients wander into
those directories they should see the contents.

-- 
Jeff Layton <jlayton@redhat.com>

Re: Problem with sharing mounted iso

[Johan GUILBAUD]

Thanks for this information Jeff, but i'll have more than one hundred
iso mounted... so adding each in exports... ^^

after tests, it works with Solaris 8 (sunos 5.8) but not with Solaris
10 (sunos 5.10), i don't understand why... i use same command to mount
my share...

 mount [-F nfs] myisoserver:/pub/ /isos

any idea ?

2013/7/8 Jeff Layton <jlayton@redhat.com>:
> On Mon, 8 Jul 2013 14:47:00 +0200
> Johan GUILBAUD <guilbaud.johan@gmail.com> wrote:
>
>> Hello !
>>
>> I have a problem to access a mounted ISO through NFS protocol
>>
>> i have a server (RHEL6) on which are mounted ISOs
>> i have a lot of client accessing files into ISO via the NFS share
>>
>> My problem is clients (RHEL5 & 6, Solaris 8 & 10) don't see content of
>> ISO folder
>>
>> In example :
>>
>> on NFS server i have a folder /pub/ where the ISO are mounted (ie :
>> with the iso mybeautifuliso.iso on the mount point
>> "/pub/mybeautifuliso/") there are also, for test, text files in /pub/
>> NFS shares content of /pub
>>
>>
>> Client see tests text files, and folder "mybeautifuliso" but this one
>> is empty...
>>
>>
>> thanks for help
>>
>
> Exports don't cross mountpoints by default, so if you exported "/pub"
> no filesystem mounted under it will be automatically exported. The best
> solution is to explicitly export those filesystems as well -- i.e. add
> an export of "/pub/mybeautifuliso". Then, when clients wander into
> those directories they should see the contents.
>
> --
> Jeff Layton <jlayton@redhat.com>



-- 
GUILBAUD Johan

Re: Problem with sharing mounted iso

[Myklebust, Trond]

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Re: Problem with sharing mounted iso

[Jeff Layton]

On Tue, 9 Jul 2013 12:14:12 +0000
"Myklebust, Trond" <Trond.Myklebust@netapp.com> wrote:

> On Tue, 2013-07-09 at 09:59 +0200, Johan GUILBAUD wrote:
> > Thanks for this information Jeff, but i'll have more than one hundred
> > iso mounted... so adding each in exports... ^^
> > 
> > after tests, it works with Solaris 8 (sunos 5.8) but not with Solaris
> > 10 (sunos 5.10), i don't understand why... i use same command to mount
> > my share...
> > 
> >  mount [-F nfs] myisoserver:/pub/ /isos
> > 
> > any idea ?

Then the crossmnt mount option is probably what you want (as Bryan
pointed out earlier).

> 
> AFAICR, the Solaris 10 client does not support crossing mount points.
> That functionality was added in Solaris 11, as part of the "mirror
> mount" feature:
> 
>   http://docs.oracle.com/cd/E23824_01/html/821-1454/ggcvr.html
> 
> Cheers
>   Trond
> 

Yes, if it works with Solaris 8, it may be the case that it's using
NFSv3 and Solaris 10 is using v4 by default. You may want to try
forcing v3 in the mount options and see if that allows Solaris 10 to
work.

> > 2013/7/8 Jeff Layton <jlayton@redhat.com>:
> > > On Mon, 8 Jul 2013 14:47:00 +0200
> > > Johan GUILBAUD <guilbaud.johan@gmail.com> wrote:
> > >
> > >> Hello !
> > >>
> > >> I have a problem to access a mounted ISO through NFS protocol
> > >>
> > >> i have a server (RHEL6) on which are mounted ISOs
> > >> i have a lot of client accessing files into ISO via the NFS share
> > >>
> > >> My problem is clients (RHEL5 & 6, Solaris 8 & 10) don't see content of
> > >> ISO folder
> > >>
> > >> In example :
> > >>
> > >> on NFS server i have a folder /pub/ where the ISO are mounted (ie :
> > >> with the iso mybeautifuliso.iso on the mount point
> > >> "/pub/mybeautifuliso/") there are also, for test, text files in /pub/
> > >> NFS shares content of /pub
> > >>
> > >>
> > >> Client see tests text files, and folder "mybeautifuliso" but this one
> > >> is empty...
> > >>
> > >>
> > >> thanks for help
> > >>
> > >
> > > Exports don't cross mountpoints by default, so if you exported "/pub"
> > > no filesystem mounted under it will be automatically exported. The best
> > > solution is to explicitly export those filesystems as well -- i.e. add
> > > an export of "/pub/mybeautifuliso". Then, when clients wander into
> > > those directories they should see the contents.
> > >
> > > --
> > > Jeff Layton <jlayton@redhat.com>
> > 
> > 
> > 
> 


-- 
Jeff Layton <jlayton@poochiereds.net>

Re: Problem with sharing mounted iso

[Johan GUILBAUD]

yes i have tried with nfsv3 when mounting share on my solaris and it works

thanks Trond for the reason...

I guess Solaris 8 don't know nfsv4 and therefore use nfsv3 :)

Thanks all for help !

Have a good day !

NB : sorry for my "bad" english, i'm french.

2013/7/9 Jeff Layton <jlayton@poochiereds.net>:
> On Tue, 9 Jul 2013 12:14:12 +0000
> "Myklebust, Trond" <Trond.Myklebust@netapp.com> wrote:
>
>> On Tue, 2013-07-09 at 09:59 +0200, Johan GUILBAUD wrote:
>> > Thanks for this information Jeff, but i'll have more than one hundred
>> > iso mounted... so adding each in exports... ^^
>> >
>> > after tests, it works with Solaris 8 (sunos 5.8) but not with Solaris
>> > 10 (sunos 5.10), i don't understand why... i use same command to mount
>> > my share...
>> >
>> >  mount [-F nfs] myisoserver:/pub/ /isos
>> >
>> > any idea ?
>
> Then the crossmnt mount option is probably what you want (as Bryan
> pointed out earlier).
>
>>
>> AFAICR, the Solaris 10 client does not support crossing mount points.
>> That functionality was added in Solaris 11, as part of the "mirror
>> mount" feature:
>>
>>   http://docs.oracle.com/cd/E23824_01/html/821-1454/ggcvr.html
>>
>> Cheers
>>   Trond
>>
>
> Yes, if it works with Solaris 8, it may be the case that it's using
> NFSv3 and Solaris 10 is using v4 by default. You may want to try
> forcing v3 in the mount options and see if that allows Solaris 10 to
> work.
>
>> > 2013/7/8 Jeff Layton <jlayton@redhat.com>:
>> > > On Mon, 8 Jul 2013 14:47:00 +0200
>> > > Johan GUILBAUD <guilbaud.johan@gmail.com> wrote:
>> > >
>> > >> Hello !
>> > >>
>> > >> I have a problem to access a mounted ISO through NFS protocol
>> > >>
>> > >> i have a server (RHEL6) on which are mounted ISOs
>> > >> i have a lot of client accessing files into ISO via the NFS share
>> > >>
>> > >> My problem is clients (RHEL5 & 6, Solaris 8 & 10) don't see content of
>> > >> ISO folder
>> > >>
>> > >> In example :
>> > >>
>> > >> on NFS server i have a folder /pub/ where the ISO are mounted (ie :
>> > >> with the iso mybeautifuliso.iso on the mount point
>> > >> "/pub/mybeautifuliso/") there are also, for test, text files in /pub/
>> > >> NFS shares content of /pub
>> > >>
>> > >>
>> > >> Client see tests text files, and folder "mybeautifuliso" but this one
>> > >> is empty...
>> > >>
>> > >>
>> > >> thanks for help
>> > >>
>> > >
>> > > Exports don't cross mountpoints by default, so if you exported "/pub"
>> > > no filesystem mounted under it will be automatically exported. The best
>> > > solution is to explicitly export those filesystems as well -- i.e. add
>> > > an export of "/pub/mybeautifuliso". Then, when clients wander into
>> > > those directories they should see the contents.
>> > >
>> > > --
>> > > Jeff Layton <jlayton@redhat.com>
>> >
>> >
>> >
>>
>
>
> --
> Jeff Layton <jlayton@poochiereds.net>



--
GUILBAUD Johan