NAS drive

NAS drive

[Roy Lemmon]

Hi,

I have a NAS drive which I would like to connect to in my house. I have
done this many times from other Linux systems. However today I struggled
with guix.

I have installed nfs-utils. That allows me to use the mount command:

sudo mount -t nfs 192.168.1.17:/Multimedia /mnt/nas

However, when I do this I get a bad command with the response that I would
need a file for nfs with some extra detail.

I am wondering whether I am running into a permissions issue. Obviously
when I install nfs-utils I am running this as myself rather than the
system.

?

Cheers
Roy.

Re: NAS drive

[Pierre Neidhardt]

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Hi Roy!

sorry, I know nothing about NASes.

That said, can you provide more details, e.g. the exact response that
you get.

> I am wondering whether I am running into a permissions issue. Obviously
> when I install nfs-utils I am running this as myself rather than the
> system.

In my understanding, mounting tools are setuid programs and as such
should be installed as part of your Guix System, not as user.  (To be confirmed.)

Hope that helps!

-- 
Pierre Neidhardt
https://ambrevar.xyz/

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Re: NAS drive

[Roy Lemmon]

Hi Pierre,

Sure. The exact response is:

rlemmon@parton ~$ sudo mount -t nfs 192.168.1.17:/Multimedia/Music/Classical
/mnt/nas
Password:
mount: /mnt/nas: bad option; for several filesystems (e.g. nfs, cifs) you
might need a /sbin/mount.<type> helper program.
rlemmon@parton ~$

I wondered, after looking in the manual, whether this is a setuid program
issue and so part of the Guix System. So I tried to set this in the .scm
file as a service. However i didn't set any values as i was not sure what
to put ...

Cheers
Roy.

On Tue, Dec 8, 2020 at 10:07 AM Pierre Neidhardt <mail@ambrevar.xyz> wrote:

> Hi Roy!
>
> sorry, I know nothing about NASes.
>
> That said, can you provide more details, e.g. the exact response that
> you get.
>
> > I am wondering whether I am running into a permissions issue. Obviously
> > when I install nfs-utils I am running this as myself rather than the
> > system.
>
> In my understanding, mounting tools are setuid programs and as such
> should be installed as part of your Guix System, not as user.  (To be
> confirmed.)
>
> Hope that helps!
>
> --
> Pierre Neidhardt
> https://ambrevar.xyz/
>


-- 
********************************
Roy Lemmon
STFC Daresbury Laboratory
United Kingdom
********************************

Re: NAS drive

[Pierre Neidhardt]

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Roy Lemmon <roy@roylemmon.com> writes:

> rlemmon@parton ~$ sudo mount -t nfs 192.168.1.17:/Multimedia/Music/Classical
> /mnt/nas
> Password:
> mount: /mnt/nas: bad option; for several filesystems (e.g. nfs, cifs) you
> might need a /sbin/mount.<type> helper program.

Indeed, `mount' needs mount.nfs, which is only found (I think) in
/run/setuid-programs/mount.nfs.

Try install nfs-utils as part of your system packages.

Cheers!

-- 
Pierre Neidhardt
https://ambrevar.xyz/

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Re: NAS drive

[Tobias Geerinckx-Rice]

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Roy,

Roy Lemmon 写道：
> I wondered, after looking in the manual, whether this is a 
> setuid program
> issue and so part of the Guix System. So I tried to set this in 
> the .scm
> file as a service. However i didn't set any values as i was not 
> sure what
> to put ...

Try:

  (setuid-programs
    (cons*
      (file-append nfs-utils "/sbin/mount.nfs") ; or nfs4
      %setuid-programs))

Kind regards,

T G-R

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Re: NAS drive

[Roy Lemmon]

Hi Tobias,

Thanks for your email. Where
 in the .scm file do those lines go ? In the:

(services
 (append
  (list

section ?

Thanks
Roy.

On Tue, 8 Dec 2020, 15:01 Tobias Geerinckx-Rice, <me@tobias.gr> wrote:

> Roy,
>
> Roy Lemmon 写道：
> > I wondered, after looking in the manual, whether this is a
> > setuid program
> > issue and so part of the Guix System. So I tried to set this in
> > the .scm
> > file as a service. However i didn't set any values as i was not
> > sure what
> > to put ...
>
> Try:
>
>   (setuid-programs
>     (cons*
>       (file-append nfs-utils "/sbin/mount.nfs") ; or nfs4
>       %setuid-programs))
>
> Kind regards,
>
> T G-R
>

Re: NAS drive

[Tobias Geerinckx-Rice]

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Roy Lemmon 写道：
> Thanks for your email. Where
>  in the .scm file do those lines go ? In the:
>
> (services
>  (append
>   (list
>
> section ?

No, on the same (top) level of your operating-system record.

Kind regards,

T G-R

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Re: NAS drive

[Roy Lemmon]

Sorry but it's been a long day ...

I have to specify the nfs package don't I ? So is that done in use-modules
or use-service-models, e.g.

(use-modules (gnu packages nfs))
(use-service-modules desktop networking ssh xorg mail)

or

use-modules (gnu))
(use-service-modules desktop networking ssh xorg mail nfs)





On Tue, Dec 8, 2020 at 3:30 PM Tobias Geerinckx-Rice <me@tobias.gr> wrote:

> Roy Lemmon 写道：
> > Thanks for your email. Where
> >  in the .scm file do those lines go ? In the:
> >
> > (services
> >  (append
> >   (list
> >
> > section ?
>
> No, on the same (top) level of your operating-system record.
>
> Kind regards,
>
> T G-R
>


-- 
********************************
Roy Lemmon
STFC Daresbury Laboratory
United Kingdom
********************************

Re: NAS drive

[Tobias Geerinckx-Rice]

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Roy Lemmon 写道：
> Sorry but it's been a long day ...

Here too :-)

> I have to specify the nfs package don't I ?

The ‘NFS package’ in

  (file-append nfs-utils "/sbin/mount.nfs")

is nfs-utils, which is a variable defined in the (gnu packages 
nfs) Guile module.

As you note, modules need to be imported first, which is what

> (use-modules (gnu packages nfs))
> (use-service-modules desktop networking ssh xorg mail)

does.  This is the correct variant for your use case: you care 
only about the package which provides mount.nfs to clients, not 
about the server which is what (gnu services nfs) provides.

Aside: the above snippet is completely equivalent to both:

  (use-modules (gnu packages nfs))
  (use-modules (gnu services desktop)
               (gnu services networking)
               (gnu services ssh)
               (gnu services xorg)
               (gnu services mail))

and

  (use-package-modules nfs)
  (use-service-modules desktop networking ssh xorg mail)

USE-{PACKAGE,SERVICE}-MODULES is Guix-specific syntactic sugar 
that saves a lot of space and typing when you're importing many 
package & service modules, as most people do.

Kind regards,

T G-R

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Re: NAS drive

[Roy Lemmon]

Hi,

Thanks for the explanation. It makes a lot of sense to me. I will try this
later tonight.

Cheers
Roy.

On Tue, 8 Dec 2020, 18:46 Tobias Geerinckx-Rice, <me@tobias.gr> wrote:

> Roy Lemmon 写道：
> > Sorry but it's been a long day ...
>
> Here too :-)
>
> > I have to specify the nfs package don't I ?
>
> The ‘NFS package’ in
>
>   (file-append nfs-utils "/sbin/mount.nfs")
>
> is nfs-utils, which is a variable defined in the (gnu packages
> nfs) Guile module.
>
> As you note, modules need to be imported first, which is what
>
> > (use-modules (gnu packages nfs))
> > (use-service-modules desktop networking ssh xorg mail)
>
> does.  This is the correct variant for your use case: you care
> only about the package which provides mount.nfs to clients, not
> about the server which is what (gnu services nfs) provides.
>
> Aside: the above snippet is completely equivalent to both:
>
>   (use-modules (gnu packages nfs))
>   (use-modules (gnu services desktop)
>                (gnu services networking)
>                (gnu services ssh)
>                (gnu services xorg)
>                (gnu services mail))
>
> and
>
>   (use-package-modules nfs)
>   (use-service-modules desktop networking ssh xorg mail)
>
> USE-{PACKAGE,SERVICE}-MODULES is Guix-specific syntactic sugar
> that saves a lot of space and typing when you're importing many
> package & service modules, as most people do.
>
> Kind regards,
>
> T G-R
>

Re: NAS drive

[Roy Lemmon]

Hi,

So I'm afraid it still doesn't work. Though with the following there are at
least no errors.

Here is the top section of the .scm file.

Cheers
Roy


config.scm
***********************

(use-modules (gnu))
(use-package-modules nfs emacs-xyz)
(use-service-modules desktop networking ssh xorg mail docker)

(operating-system

  (setuid-programs
   (cons*
    (file-append nfs-utils "/sbin/mount.nfs")
    %setuid-programs))

 (locale "en_GB.utf8")
 (host-name "parton")
 (timezone "Europe/London")

 (keyboard-layout (keyboard-layout "gb" "extd"))

  (bootloader
    (bootloader-configuration
      (bootloader grub-efi-bootloader)
      (target "/boot/efi")
      (keyboard-layout keyboard-layout)))

.... cont.

On Tue, Dec 8, 2020 at 6:46 PM Tobias Geerinckx-Rice <me@tobias.gr> wrote:

> Roy Lemmon 写道：
> > Sorry but it's been a long day ...
>
> Here too :-)
>
> > I have to specify the nfs package don't I ?
>
> The ‘NFS package’ in
>
>   (file-append nfs-utils "/sbin/mount.nfs")
>
> is nfs-utils, which is a variable defined in the (gnu packages
> nfs) Guile module.
>
> As you note, modules need to be imported first, which is what
>
> > (use-modules (gnu packages nfs))
> > (use-service-modules desktop networking ssh xorg mail)
>
> does.  This is the correct variant for your use case: you care
> only about the package which provides mount.nfs to clients, not
> about the server which is what (gnu services nfs) provides.
>
> Aside: the above snippet is completely equivalent to both:
>
>   (use-modules (gnu packages nfs))
>   (use-modules (gnu services desktop)
>                (gnu services networking)
>                (gnu services ssh)
>                (gnu services xorg)
>                (gnu services mail))
>
> and
>
>   (use-package-modules nfs)
>   (use-service-modules desktop networking ssh xorg mail)
>
> USE-{PACKAGE,SERVICE}-MODULES is Guix-specific syntactic sugar
> that saves a lot of space and typing when you're importing many
> package & service modules, as most people do.
>
> Kind regards,
>
> T G-R
>


-- 
********************************
Roy Lemmon
STFC Daresbury Laboratory
United Kingdom
********************************

Re: NAS drive

[Tobias Geerinckx-Rice]

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Roy,

Roy Lemmon 写道：
> So I'm afraid it still doesn't work.

That's unfortunate :-(

> Here is the top section of the .scm file.

I'm recompiling my kernel with NFS support to test you command for 
myself.

I wonder if it's because we configure util-linux with:

  "--enable-fs-paths-default=/run/current-system/profile/sbin"

If so the attached patch might help, but it's merely a total 
guess.

Kind regards,

T G-R


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From 7d481e79076d8feb9e69fe0ca3a9eb1b3bb26573 Mon Sep 17 00:00:00 2001
From: Tobias Geerinckx-Rice <me@tobias.gr>
Date: Wed, 9 Dec 2020 22:03:47 +0100
Subject: [PATCH] gnu: util-linux: Support setuid mount helpers on Guix System.

* gnu/packages/linux.scm (util-linux)[argument]: Add /run/setuid-programs
to --enable-fs-paths-default.
---
 gnu/packages/linux.scm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm
index 3d36468172..03a1bcbf71 100644
--- a/gnu/packages/linux.scm
+++ b/gnu/packages/linux.scm
@@ -1513,7 +1513,9 @@ providing the system administrator with some help in common tasks.")
                "static"))       ;2.9 MiB static .a libraries
     (arguments
      `(#:configure-flags (list "--disable-use-tty-group"
-                               "--enable-fs-paths-default=/run/current-system/profile/sbin"
+                               (string-append "--enable-fs-paths-default="
+                                              "/run/setuid-programs:"
+                                              "/run/current-system/profile/sbin")
                                ;; Don't try to chown root:root mount and umount
                                "--disable-makeinstall-chown"
                                "--localstatedir=/var"
-- 
2.29.2


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Re: NAS drive

[Roy Lemmon]

Hi

Thanks for recompiling your kernel with NFS support and for the patch. I
will try it but with not much hope ... !

I'll wait for your reply.

Cheers
Roy.



On Wed, 9 Dec 2020, 21:12 Tobias Geerinckx-Rice, <me@tobias.gr> wrote:

> Roy,
>
> Roy Lemmon 写道：
> > So I'm afraid it still doesn't work.
>
> That's unfortunate :-(
>
> > Here is the top section of the .scm file.
>
> I'm recompiling my kernel with NFS support to test you command for
> myself.
>
> I wonder if it's because we configure util-linux with:
>
>   "--enable-fs-paths-default=/run/current-system/profile/sbin"
>
> If so the attached patch might help, but it's merely a total
> guess.
>
> Kind regards,
>
> T G-R
>
>

Re: NAS drive

[Tobias Geerinckx-Rice via]

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Hullo!

Had a spare minute to try my new shiny kernel, now sporting the 
cream of 1980s file sharing:

  ~ λ grep ^CONFIG_NFS /run/current-system/kernel/.config 
  CONFIG_NFS_FS=m
  CONFIG_NFS_V3=m
  CONFIG_NFS_FSCACHE=y
  CONFIG_NFS_DISABLE_UDP_SUPPORT=y
  CONFIG_NFS_COMMON=y

Much less than Guix's linux-libre package enables by default, but 
it should suffice -- I think?

For now:

  # With ‘mount’ patched to look in /run/setuid-programs:
  ~ λ sudo mount -t nfs 1.2.3.4:/ /mnt
  mount.nfs: Protocol not supported

OK, I'm obviously missing an NFS server to actually test, but 
maybe it works now?

Be sure to pull before testing as I fixed a different bug in 
nfs-utils on master.

Kind regards,

T G-R

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Re: NAS drive

[Roy Lemmon]

Hi T G-R,

Hmm, 1980s file sharing ... I must ask what you use now sometime ... !

So 'with mount patched' ... How do I take the patch you sent in the
previous email and apply it to the package nfs-utils ? That's stumping me
just now (the manual assumes too much ...). Presumably that would allow
'mount' to look in /run/setuid-programs ...

Certainly I can do guix pull before testing (presumably do before patching
to catch the bug in nfs-utils on master you fixed ?).

Cheers
Roy.

On Thu, 10 Dec 2020, 16:16 Tobias Geerinckx-Rice, <me@tobias.gr> wrote:

> Hullo!
>
> Had a spare minute to try my new shiny kernel, now sporting the
> cream of 1980s file sharing:
>
>   ~ λ grep ^CONFIG_NFS /run/current-system/kernel/.config
>   CONFIG_NFS_FS=m
>   CONFIG_NFS_V3=m
>   CONFIG_NFS_FSCACHE=y
>   CONFIG_NFS_DISABLE_UDP_SUPPORT=y
>   CONFIG_NFS_COMMON=y
>
> Much less than Guix's linux-libre package enables by default, but
> it should suffice -- I think?
>
> For now:
>
>   # With ‘mount’ patched to look in /run/setuid-programs:
>   ~ λ sudo mount -t nfs 1.2.3.4:/ /mnt
>   mount.nfs: Protocol not supported
>
> OK, I'm obviously missing an NFS server to actually test, but
> maybe it works now?
>
> Be sure to pull before testing as I fixed a different bug in
> nfs-utils on master.
>
> Kind regards,
>
> T G-R
>