samba - Dec 2013 - l can't "see" files on NFS mounts using 3.6.15, after upgrading from 2.2.8a

Hi Steve,

thanks for jumping in,

I've answered your questions below.


---------- Forwarded message ----------
From: steve <steve at steve-ss.com>
To: samba at lists.samba.org
Cc:
Date: Thu, 12 Dec 2013 10:46:15 +0100
Subject: Re: [Samba] [Sambal can't "see" files on NFS mounts using
3.6.15,
after upgrading from 2.2.8a
On Thu, 2013-12-12 at 01:24 -0800, Linda W wrote:
> On 12/11/2013 10:08 PM, Jordan Verschuer wrote:
> > Thanks Linda, your suggestion is a good one, I think it gives a clue.
> >
> > I created a new samba Share of a NFS mounted folder, i.e. not linked
> > into my original Share, and this shows the same thing, I can't see
the
> > files via Win or Mac clients.
> >
> > So this rules out being a wide link issue right?
> >
> > It's now a "sharing an NFS mounted folder via smb" issue
right?
> ----
> It would seem so.  Since there are no links involved and you are
> accessing it
> directly, I don't see how links would be at issue.
Hi
How are you re-sharing? Are you re-exporting the nfs mount point itself?

It works if you don't no? IOW,

[stuff]
path = /home/stuff
read only = No

now:
mkdir /home/stuff/nfs
and
mount -t nfs server:/share /home/stuff/nfs

Now you can see the files, yes?


==> I've mounted the NFS like this, and no joy, it still won't let me
see
the files.

The only difference is on Solaris 9 the command is mount -F nfs ?

Strangely I can copy files in, but once "refreshing" Explorer or
Finder
they become hidden.

On 2.2.8a this wasn't a problem.



But:

mount -t nfs server:/share /home/stuff

and you can't?

Other stuff. Are we kerberised? What does the share look like in
smb.conf? What command are you using to mount the nfs share?


==> mount -F nfs? as for Solaris 9.

==> Sorry, i'm not a fully fledged sys admin, how do I check kerberos and
what aspect in particular; simply if it is running or not?

==> smb.conf see below, biograph is the Share that i'd like to mount or
link NFS folders to, which used to work fine linking them in using 2.2.8a.

++++++++++++++++++++++++++++++++++++++++++
# Samba config file created using SWAT
# from UNKNOWN (152.76.10.181)
# Date: 2013/12/12 16:48:45

[global]
  server string = Samba Server
  interfaces = eri0, 152.76.10.3/255.255.255.192
  passdb backend = smbpasswd
  os level = 65
  preferred master = Yes
  domain master = Yes
  wins support = Yes
  remote announce = 152.76.10.255/WORKGROUP
  allow insecure wide links = Yes
  idmap config * : range   idmap config * : backend = tdb
  admin users = root, roger, ecat
  printer admin = @ntadmin

[print$]
  path = /usr/local/samba/printers
  admin users = roger, root
  write list = @ntadmin, root
  guest ok = Yes

[biograph]
  comment = biograph
  path = /p3/biograph
  valid users = biograph, roger, steve, stefan, ecat, root, lingfeng, jordan
  admin users   read only = No
  wide links = Yes

[roger]
  comment = roger
  path = /home/acacia/roger
  valid users = roger, root
  read only = No

[X2125-A6]
  comment = X2125 A6
  path = /var/spool/samba/print
  printable = Yes
  print ok = Yes

[wenlf]
  comment = lingfeng
  path = /home/karri/lingfeng
  valid users = lingfeng
  admin users   read only = No
  browseable = No
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++



Any other info available?

==> The NFS servers are not NIS+ or LDAP, i.e. no directory service or
mapped user login/authentication service is running, but this wasn't a
problem in 2.2.8a, would something in 3.6.15 have been introduced which
requires these NFS servers to now join or share some user login info?? Or
mapped user or group ID's, etc? Anything along those lines ???


HTH
Steve



Thanks for your help,

it's quite a puzzle!


Cheers,
Jordan

Sorry Steve, by ? I meant etc. (yada yada)


The share folder is /p3/biograph, and for e.g. I can make a directory there
called karri,

mkdir /p3/biograph/karri

I can then mount a folder from an NFS server called karri (we have dns)
into the share as follows,

mount -F nfs karri:/home/karri /p3/biograph/karri

This mounts all the folders in the karri home folder into a folder called
karri on the share.

When I open this folder from a Windows or Samba client I can't see any
files, they're "hidden".

The files are there and can be seen on the actual samba server.

I can also paste files into the karri directory using Explorer or Finder
from the samba client but then they become hidden once I refresh the
Explorer or Finder window.

Accessing NFS mounts from samba clients worked seamlessly for us in 2.2.8a.

They weren't heavily accessed folders and we weren't opening files and
working on them while they lived in the NFS mount.

The main reason we use this is that the Samba share has limited disk space,

so for instance I can make a directory on an NFS server with lots of space
and call this folder Software (and server it up via NFS, i.e. add it to
/etc/dfs/dfstab),

I can then copy all our software installation files, say for e.g. Microsoft
Office (~600MB), into this folder using a Samba client,

I can then go to another PC without Office installed, map the Samba share,
and copy the MS Office installation files (that are now living on the NFS
server but can be accessed via the Samba share) to this new PC,

once copied over to the new PC I can install MS office. Our computer guys
here that would be installing software would know not to start the
installation by running the software from the NFS directly, but that they
should copy it to the local first.

This is just an example but i'm trying to highlight that the files from the
NFS mounts wouldn't be "opened" directly from there,

the NFS mounts are simply a storage location.

I say this because i've seen a lot of "never share an NFS mount via
samba"
posts due to file locking issues,

but since we're not opening files from there I don't see this as a major
problem for us, like i say, we're using it for storage only.


I hope this all makes sense!


And like i've mentioned before, this all worked in 2.2.8a without any
tinkering needed, so it's quite puzzling.

Thanks for your help,

Cheers,
Jordan








On Tue, Dec 17, 2013 at 2:58 AM, steve <steve at steve-ss.com> wrote:
>
> > What command are you using to mount the nfs share?
> >
> >
> >
> >
> > ==> mount -F nfs? as for Solaris 9.
>
> Hi
> I had a quick look at the oracle docs but I don't think:
>  mount -F nfs...
> will mount anything. Are you sure that this command worked with your
> older version?
> Steve
>
>
>