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

On 03/04/2025 10:51, c186282 wrote:

On 4/2/25 1:04 PM, The Natural Philosopher wrote:

On 02/04/2025 12:18, Carlos E.R. wrote:

On 2025-04-02 12:48, The Natural Philosopher wrote:

On 02/04/2025 11:35, Carlos E.R. wrote:

On 2025-04-02 03:29, c186282 wrote:

So ... any insights on how to get NFS to
"see" whatever IS mounted to the share point
AT THE MOMENT ???

>
Restart NFS manually after the manual mount of external media.
>
Or, define the usb mounts in fstab, and exports. But then, you can not boot without the usb media.
>

I missed the earlier part, but mount | grep nfs...shows what is mounted
>
or mount | grep mount-point...
>

>
The point he syas is that when exporting "/media/<user>/usbsomething", the clients can not see the files, only the mount point.
>

So he is trying to export a mounted partition?
>
I always start with ...
>
*(ro,sync,no_root_squash,no_subtree_check)
>
In /etc/exports for the least restricted export

    Ok, tried your param list ... but still nada on
   the later-login mounts. Exportfs adds a bunch of
   other defaults to etab.
    It's VERY annoying.
    As best I can tell, NFS cuts in VERY early and there
   is no sane way to stop/delay it. As such it ONLY sees
   the original, empty, folder we are later gonna
   remount the USBs to.
 

There is an insane way, using systemd to delay it.
Or you could try automounting
Or write an explicit script and run it a minute after booting
Occasionally my Laptop doesn't mount my server because the Wifi tokk too long to connect.

   Have a 4-drive external USB fixture. The drives USUALLY
   come up in order, but experience sez they won't ALWAYS
   do that. Depends on how quick the drives initialize,
   and there's one magnetic in the mix. sda/sdb/etc may
   not ALWAYS, reliably, be the same physical drives.
   A Python script can more easily probe/parse info that
   can individually identify, that's the next stage.
    Anyway, the drives (sometimes) come up in /media/<user>
   and I have a mount statement that mounts them in my
   NFS share dir, under the appropriate sub-folder.
 

Why not put them in your fstab and explicitly mount them at boot time?

   BUT, NFS just doesn't SEE that - only what was there
   (nothing) a microsec after the system boots. Have NOT
   been able to use exportfs to change that no matter
   the params.
 

NFS comes up after the system scans fstab

   It's vexing - I want to use the USB cluster as NAS
   yet this behavior is in the way. BTW there can also
   be other, more interesting, uses to being able to
   mount/umount/remount different USB drives and such
   in a dynamic manner ... maybe soon.
    Have a crontab now that tries to remount the USBs
   to the NAS folders every 5 minutes. Doesn't help.
    Anyway, not sure NFS can *do* what I need it to do.
   It's great at sharing pre-existing pre-stuffed
   subdirs - have security cam backups going there -
   but so far just WON'T handle later mount statements.
 

Sure did with me. I used to export a CD ROM drive

   As said somewhere, have had horrible probs with SAMBA
   in the latest distros - all the online advice and past
   experience do NOT get around permissions issues. You
   can see the SAMBA share is *there*, just not log on.
   They CHANGED something recently and it's ill-documented.
   SAMBA *can* cope with the to-the-second mounts, have
   used it that way before, even INTERNALLY on a NAS
   box so backup pgms would work easily.
 

Samba is for people who run M£ or Appleshit.
Look just put them in fstab if they are permanently mounted and necessary for the computer to operate.
/media/bollocksface/myUSB is a temporary mount point for *removable* devices.
Dont fight the system. Use it the way K & R and Sun intended.
--
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