Path: ...!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail
From: vallor <vallor@cultnix.org>
Newsgroups: comp.os.linux.misc
Subject: Re: Here's One - NFS - Mounting Over Share = Nada
Date: 2 Apr 2025 10:49:36 GMT
Lines: 47
Message-ID: <m54j20Fhof8U3@mid.individual.net>
References: <UQ-dndQV6amaDnH6nZ2dnZfqnPednZ2d@giganews.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-Trace: individual.net 7qCpgUHnHeq21xMl4SbeDAY1K7WHciUsQH8Y3VQyNmlyUJFSAo
Cancel-Lock: sha1:ph1K94WjpEt462/zzxSvxovuu1c= sha256:lWl3FDyRdKqkdS0eUuWvtvT5wgvZgwl0TTAviOYreLI=
X-Face: +McU)#<-H?9lTb(Th!zR`EpVrp<0)1p5CmPu.kOscy8LRp_\u`:tW;dxPo./(fCl
 CaKku`)]}.V/"6rISCIDP`
User-Agent: Pan/0.162 (Hmm4; f7d29671; Linux-6.14.0)
Bytes: 2964

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.

-- 
-v System76 Thelio Mega v1.1 x86_64 NVIDIA RTX 3090 Ti
   OS: Linux 6.14.0 Release: Mint 22.1 Mem: 258G
   "Why can't we just spell it orderves?"