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Groups > comp.os.linux.misc > #66794

Re: Here's One - NFS - Mounting Over Share = Nada

From "Carlos E.R." <robin_listas@es.invalid>
Newsgroups comp.os.linux.misc
Subject Re: Here's One - NFS - Mounting Over Share = Nada
Date 2025-04-02 13:14 +0200
Message-ID <4qivblx7ff.ln2@Telcontar.valinor> (permalink)
References <UQ-dndQV6amaDnH6nZ2dnZfqnPednZ2d@giganews.com> <m54j20Fhof8U3@mid.individual.net>

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On 2025-04-02 12:49, vallor wrote:
> On Tue, 1 Apr 2025 21:29:48 -0400, c186282 <c186282@nnada.net> wrote in
> <UQ-dndQV6amaDnH6nZ2dnZfqnPednZ2d@giganews.com>:
> 
>> Here's an interesting problem ....
>>
>> I re-mount USB drives onto NFS share points. The problem is that NFS
>> doesn't SEE that - it only sees the previously empty dir instead.
>> Add a tag file to that dir and that's ALL you will see in the share on
>> another PC.
>>
>> Tried variations of exportfs ... including the '-r' and '-au' then '-a'
>> AFTER doing the mount. Sorry, the clients can't see the mount. The NFS
>> stuff seems to cut in very early - before the USB re-mounts (done
>> @reboot). If you look on the host machine you DO see the USB drives, but
>> NEVER over the NFS share.
>>
>> Why re-mount the USBs ? Because you can't always rely on Linux to mount
>> them in the same order, used to be even the same place.
>> '/media/<user>/whatever' seems hard-wired these days, but with multiple
>> USB drives you still can't count on drive 1 being the drive 1 in
>> /media/<user>. Kinda depends on which comes online first.
>> Naming the drives helps, but even then.
>>
>> And no, symlinks to some other mount point don't work ... NFS just
>> shares a link to nowhere on the clients. 'hard' links ???
>>
>> Have ONE share that's not a re-mounted anything - THAT always shows
>> perfectly on the clients. Weird thing, somehow, at one point I DID get
>> it to work - but not sure HOW. Just commented-out the old NFS and fstab
>> stuff, so I've been able to re-try, but now none work. Set everything to
>> 775 or 777 for development work, but that doesn't help.
>>
>> SAMBA - this sort of thing works fine, but I've had horrible probs with
>> SAMBA with the latest distros, ALWAYS intractable permissions issues no
>> matter the tweaks, hence using NFS.
>>
>> So ... any insights on how to get NFS to "see" whatever IS mounted to
>> the share point AT THE MOMENT ???
>>
>> Oh, latest MX Linux.
> 
> Take a look at "man exports" under the "nohide" option.

Ah, yes.

Last line says "not if you use NFSv4". The hiding doesn't happen with 
version 4.

Reminds me of something. How does one know what version is actually used?

-- 
Cheers, Carlos.

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Thread

Here's One - NFS - Mounting Over Share = Nada c186282 <c186282@nnada.net> - 2025-04-01 21:29 -0400
  Re: Here's One - NFS - Mounting Over Share = Nada "Carlos E.R." <robin_listas@es.invalid> - 2025-04-02 12:35 +0200
    Re: Here's One - NFS - Mounting Over Share = Nada The Natural Philosopher <tnp@invalid.invalid> - 2025-04-02 11:48 +0100
      Re: Here's One - NFS - Mounting Over Share = Nada "Carlos E.R." <robin_listas@es.invalid> - 2025-04-02 13:18 +0200
        Re: Here's One - NFS - Mounting Over Share = Nada The Natural Philosopher <tnp@invalid.invalid> - 2025-04-02 18:04 +0100
          Re: Here's One - NFS - Mounting Over Share = Nada c186282 <c186282@nnada.net> - 2025-04-03 05:51 -0400
            Re: Here's One - NFS - Mounting Over Share = Nada The Natural Philosopher <tnp@invalid.invalid> - 2025-04-03 11:08 +0100
            Re: Here's One - NFS - Mounting Over Share = Nada "Carlos E.R." <robin_listas@es.invalid> - 2025-04-03 14:07 +0200
              Re: Here's One - NFS - Mounting Over Share = Nada c186282 <c186282@nnada.net> - 2025-04-03 11:27 -0400
                Re: Here's One - NFS - Mounting Over Share = Nada Ralf Fassel <ralfixx@gmx.de> - 2025-04-03 18:36 +0200
                Re: Here's One - NFS - Mounting Over Share = Nada The Natural Philosopher <tnp@invalid.invalid> - 2025-04-03 18:09 +0100
                Re: Here's One - NFS - Mounting Over Share = Nada c186282 <c186282@nnada.net> - 2025-04-03 16:42 -0400
                Re: Here's One - NFS - Mounting Over Share = Nada c186282 <c186282@nnada.net> - 2025-04-03 15:27 -0400
                Re: Here's One - NFS - Mounting Over Share = Nada The Natural Philosopher <tnp@invalid.invalid> - 2025-04-03 18:08 +0100
                Re: Here's One - NFS - Mounting Over Share = Nada "Carlos E.R." <robin_listas@es.invalid> - 2025-04-03 20:48 +0200
                Re: Here's One - NFS - Mounting Over Share = Nada c186282 <c186282@nnada.net> - 2025-04-03 15:49 -0400
  Re: Here's One - NFS - Mounting Over Share = Nada vallor <vallor@cultnix.org> - 2025-04-02 10:49 +0000
    Re: Here's One - NFS - Mounting Over Share = Nada c186282 <c186282@nnada.net> - 2025-04-02 07:12 -0400
    Re: Here's One - NFS - Mounting Over Share = Nada "Carlos E.R." <robin_listas@es.invalid> - 2025-04-02 13:14 +0200
      Re: Here's One - NFS - Mounting Over Share = Nada c186282 <c186282@nnada.net> - 2025-04-02 07:39 -0400
        Re: Here's One - NFS - Mounting Over Share = Nada "Carlos E.R." <robin_listas@es.invalid> - 2025-04-02 14:19 +0200
          Re: Here's One - NFS - Mounting Over Share = Nada c186282 <c186282@nnada.net> - 2025-04-02 08:38 -0400
            Re: Here's One - NFS - Mounting Over Share = Nada "Carlos E.R." <robin_listas@es.invalid> - 2025-04-02 15:30 +0200
      Re: Here's One - NFS - Mounting Over Share = Nada vallor <vallor@cultnix.org> - 2025-04-02 11:40 +0000
        Re: Here's One - NFS - Mounting Over Share = Nada c186282 <c186282@nnada.net> - 2025-04-02 08:08 -0400
          Re: Here's One - NFS - Mounting Over Share = Nada "Carlos E.R." <robin_listas@es.invalid> - 2025-04-02 14:25 +0200
        Re: Here's One - NFS - Mounting Over Share = Nada "Carlos E.R." <robin_listas@es.invalid> - 2025-04-02 14:15 +0200
          Re: Here's One - NFS - Mounting Over Share = Nada Computer Nerd Kev <not@telling.you.invalid> - 2025-04-03 16:40 +1000
            Re: Here's One - NFS - Mounting Over Share = Nada c186282 <c186282@nnada.net> - 2025-04-03 06:19 -0400
              Re: Here's One - NFS - Mounting Over Share = Nada The Natural Philosopher <tnp@invalid.invalid> - 2025-04-03 12:03 +0100
                Re: Here's One - NFS - Mounting Over Share = Nada c186282 <c186282@nnada.net> - 2025-04-03 07:27 -0400
                Re: Here's One - NFS - Mounting Over Share = Nada The Natural Philosopher <tnp@invalid.invalid> - 2025-04-03 12:38 +0100

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