NFS share - NtOpenFile() failed, c00000be

NFS share - NtOpenFile() failed, c00000be

[Andy O'Shaughnessy]

I am able to mount an NFS share from Linux but when I use Cygwin I get
a stranger error:

$ mount //<server>/<share> /tmp/test1

$ ls -lrt /tmp
ls: cannot access /tmp/test1: No such file or directory
total 0
d????????? ? ? ? ?            ? test1

But when I run the following I get :

$ /usr/lib/csih/getVolInfo /tmp/test1
NtOpenFile(\??\UNC\<server>\<share>) failed, c00000be

Note : 0xC00000BE = STATUS_BAD_NETWORK_PATH

The mount happened but not properly.
It might be linked to Windows McAfee Firewalls.
I would guess this mailing list will readily know what is wrong

Re: NFS share - NtOpenFile() failed, c00000be

[Ryan Johnson]

On 29/10/2015 5:47 AM, Andy O'Shaughnessy wrote:
> It might be linked to Windows McAfee Firewalls.
You've answered your own question.
http://cygwin.com/faq/faq.html#faq.using.bloda

Regards,
Ryan

Re: NFS share - NtOpenFile() failed, c00000be

[Corinna Vinschen]

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Hi Andy,

in theory this is the wrong mailing list.  The right one for this type
of question is cygwin AT cygwin DOT com.  But see below.

On Oct 29 11:47, Andy O'Shaughnessy wrote:
> I am able to mount an NFS share from Linux but when I use Cygwin I get
> a stranger error:
> 
> $ mount //<server>/<share> /tmp/test1
> 
> $ ls -lrt /tmp
> ls: cannot access /tmp/test1: No such file or directory
> total 0
> d????????? ? ? ? ?            ? test1
> 
> But when I run the following I get :
> 
> $ /usr/lib/csih/getVolInfo /tmp/test1
> NtOpenFile(\??\UNC\<server>\<share>) failed, c00000be
> 
> Note : 0xC00000BE = STATUS_BAD_NETWORK_PATH
> 
> The mount happened but not properly.
> It might be linked to Windows McAfee Firewalls.
> I would guess this mailing list will readily know what is wrong

As Ryan indicated it may be related to firewall settings, but let's take
a step back first.

- Accessing NFS shares does not work out of the box on Windows.  You
  have to install the NFS feature in Windows first:

  Control Panel -> Programs and Features -> Turn Windows features on or off
  -> Services for NFS

  If the above doesn't exist on your machine, you're out of luck.  Since
  Windows 7 this feature is only available to Enterprise customers :(

- In an AD environment you also should make sure to have the required
  authentication as a UNIX user with the right UID/GID.  I urge you to
  read https://cygwin.com/cygwin-ug-net/ntsec.html, especially
  https://cygwin.com/cygwin-ug-net/ntsec.html#ntsec-mapping-nfs and
  https://cygwin.com/cygwin-ug-net/ntsec.html#ntsec-mapping-nsswitch-posix

- In the administrative "Services for NFS" dialog, make sure to disable
  the krb5 security flavors.  I had a lot of trouble with them, but
  there's a good chance I did something wrong, so take this with a grain
  of salt.

- NFSv4 is not support.  Export the shares with NFSv3.

- If you export a share on Unix/Linux like this (/etc/exports):

    /foo/bar/baz  ...

  there won't be a //server/foo share!  There won't be a //server/baz
  share either.  Rather you have to access the full path as in
  //server/foo/bar/baz.  And that sometimes fails for no good reason.
  Therefore, ideally construct your server paths to be exported with a
  single path component, e.g., symlink or bind mount /foo/bar/baz to
  /baz and then export /baz.
  

HTH,
Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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Fwd: NFS share - NtOpenFile() failed, c00000be

[Andy O'Shaughnessy]

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Enabling the "Services for NFS" solved my problem - thank you very much Corinna.

---------- Forwarded message ----------
From: Corinna Vinschen <corinna-cygwin@cygwin.com>

  Control Panel -> Programs and Features -> Turn Windows features on or off
  -> Services for NFS

  If the above doesn't exist on your machine, you're out of luck.  Since
  Windows 7 this feature is only available to Enterprise customers :(

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Re: NFS share - NtOpenFile() failed, c00000be

[Andy O'Shaughnessy]

Corinna

You solved this before for me:






*"- Accessing NFS shares does not work out of the box on Windows.  You
have to install the NFS feature in Windows first:  Control Panel ->
Programs and Features -> Turn Windows features on or off  -> Services for
NFS"*

I updated to *Windows 10* and the seem to be broke again.
Is that possible?

Andy


On Thu, Oct 29, 2015 at 3:12 PM, Corinna Vinschen <corinna-cygwin@cygwin.com
> wrote:

> Hi Andy,
>
> in theory this is the wrong mailing list.  The right one for this type
> of question is cygwin AT cygwin DOT com.  But see below.
>
> On Oct 29 11:47, Andy O'Shaughnessy wrote:
> > I am able to mount an NFS share from Linux but when I use Cygwin I get
> > a stranger error:
> >
> > $ mount //<server>/<share> /tmp/test1
> >
> > $ ls -lrt /tmp
> > ls: cannot access /tmp/test1: No such file or directory
> > total 0
> > d????????? ? ? ? ?            ? test1
> >
> > But when I run the following I get :
> >
> > $ /usr/lib/csih/getVolInfo /tmp/test1
> > NtOpenFile(\??\UNC\<server>\<share>) failed, c00000be
> >
> > Note : 0xC00000BE = STATUS_BAD_NETWORK_PATH
> >
> > The mount happened but not properly.
> > It might be linked to Windows McAfee Firewalls.
> > I would guess this mailing list will readily know what is wrong
>
> As Ryan indicated it may be related to firewall settings, but let's take
> a step back first.
>
> - Accessing NFS shares does not work out of the box on Windows.  You
>   have to install the NFS feature in Windows first:
>
>   Control Panel -> Programs and Features -> Turn Windows features on or off
>   -> Services for NFS
>
>   If the above doesn't exist on your machine, you're out of luck.  Since
>   Windows 7 this feature is only available to Enterprise customers :(
>
> - In an AD environment you also should make sure to have the required
>   authentication as a UNIX user with the right UID/GID.  I urge you to
>   read https://cygwin.com/cygwin-ug-net/ntsec.html, especially
>   https://cygwin.com/cygwin-ug-net/ntsec.html#ntsec-mapping-nfs and
>   https://cygwin.com/cygwin-ug-net/ntsec.html#ntsec-mapping-nsswitch-posix
>
> - In the administrative "Services for NFS" dialog, make sure to disable
>   the krb5 security flavors.  I had a lot of trouble with them, but
>   there's a good chance I did something wrong, so take this with a grain
>   of salt.
>
> - NFSv4 is not support.  Export the shares with NFSv3.
>
> - If you export a share on Unix/Linux like this (/etc/exports):
>
>     /foo/bar/baz  ...
>
>   there won't be a //server/foo share!  There won't be a //server/baz
>   share either.  Rather you have to access the full path as in
>   //server/foo/bar/baz.  And that sometimes fails for no good reason.
>   Therefore, ideally construct your server paths to be exported with a
>   single path component, e.g., symlink or bind mount /foo/bar/baz to
>   /baz and then export /baz.
>
>
> HTH,
> Corinna
>
> --
> Corinna Vinschen                  Please, send mails regarding Cygwin to
> Cygwin Maintainer                 cygwin AT cygwin DOT com
> Red Hat
>

Re: NFS share - NtOpenFile() failed, c00000be

[cyg Simple]

On 9/28/2017 7:27 AM, Andy O'Shaughnessy wrote:
> Corinna
> 
> You solved this before for me:
> 
> 
> 
> 
> 
> 
> *"- Accessing NFS shares does not work out of the box on Windows.  You
> have to install the NFS feature in Windows first:  Control Panel ->
> Programs and Features -> Turn Windows features on or off  -> Services for
> NFS"*
> 
> I updated to *Windows 10* and the seem to be broke again.
> Is that possible?
> 

This is the wrong list for this discussion but ...

https://graspingtech.com/mount-nfs-share-windows-10/

You must have at least a Pro version.

-- 
cyg Simple