GNU bug report logs - #63546
nix-channel error: opening pseudoterminal master: No such device

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Nathan Dehnel <ncdehnel <at> gmail.com>
To: bug-guix <bug-guix <at> gnu.org>
Subject: nix-channel error: opening pseudoterminal master: No such device
Date: Tue, 16 May 2023 23:44:25 -0500

I recently started getting this error:

$ nix-channel --update
unpacking channels...
error: opening pseudoterminal master: No such device
error: program '/gnu/store/77sxsc9awh98pg4y1iab195adls6bbm8-nix-2.5.1/bin/nix-env'
failed with exit code 1

should I report this to nix instead?

tried running it in xfce-terminal and in a TTY
using the nix shepherd service
guix version c8e599b

Message #8 received at 63546 <at> debbugs.gnu.org (full text, mbox):

From: Haider <paralle1epiped <at> outlook.com>
To: 63546 <at> debbugs.gnu.org
Subject: Re: nix-channel error: opening pseudoterminal master: No such device
Date: Sun, 04 Jun 2023 16:50:43 +0100

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Just here to state that I am also getting this error whilst using the
nix shepherd service. (I'm on an up-to-date guix system).

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Message #11 received at 63546 <at> debbugs.gnu.org (full text, mbox):

From: Zhu Zihao <all_but_last <at> 163.com>
To: 63546 <at> debbugs.gnu.org
Subject: Re: nix-channel error: opening pseudoterminal master: No such device
Date: Wed, 07 Jun 2023 00:09:00 +0800

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You can have a look at
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=63893

which solves the problem.
-- 
Retrieve my PGP public key:

  gpg --recv-keys B3EBC086AB0EBC0F45E0B4D433DB374BCEE4D9DC

Zihao

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Message #14 received at 63546 <at> debbugs.gnu.org (full text, mbox):

From: Haider <paralle1epiped <at> outlook.com>
To: 63546 <at> debbugs.gnu.org
Subject: Re: Nix-channel error
Date: Wed, 07 Jun 2023 21:03:27 +0100

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Thank you Zihao, I did notice the patch at the time but I didn't assume
that it had fixed the issue. 

I will stay patient for when it will be pushed upstream. Thank you for
your efforts.

Regards,
Haider Mirza

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Message #17 received at 63546 <at> debbugs.gnu.org (full text, mbox):

From: worldofgeese <worldofgeese <at> proton.me>
To: "63546 <at> debbugs.gnu.org" <63546 <at> debbugs.gnu.org>
Subject: (No Subject)
Date: Fri, 23 Jun 2023 07:55:19 +0000

I'm still receiving the same error. I tested a variant of Zhu's patch by defining my own custom Nix package that sticks very closely to Zhu's, just with manpages and docs generation disabled. I can confirm Nix is running latest: nix (Nix) 2.16.0.

This is the first time I've done any kind of Guix hacking so it's a bit rough. Here's my custom Nix package.

(define-public my-nix
  (package
    (inherit nix)
    (name "nix")
    (version "2.16.0")
    (inputs (modify-inputs (package-inputs nix)
              (append rapidcheck nlohmann-json)))
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/NixOS/nix")
              (commit version)))
        (file-name (git-file-name name version))
        (sha256
         (base32 "0jizpci4zspqpqqy3n780m4wh8dzhfywaiz953xv70c7in810dra"))))
    (arguments
     `(#:configure-flags '("--disable-doc-gen")
       #:phases
       (modify-phases %standard-phases
         (replace 'check
            (lambda args
              ;; Some tests expect environment variable NIX_STORE to be
              ;; "/nix/store"
              (let ((original-NIX_STORE (getenv "NIX_STORE")))
                (dynamic-wind
                  (lambda ()
                    (setenv "NIX_STORE" "/nix/store"))
                  (lambda ()
                    (apply (assoc-ref %standard-phases 'check) args))
                  (lambda ()
                    (setenv "NIX_STORE" original-NIX_STORE)))))))))))

Attempting to run devbox shell returns 

Error: Command: /run/current-system/profile/bin/nix print-dev-env /home/worldofgeese/Downloads/projects/little_bits_of_buddha/.devbox/gen/flake/flake.nix --extra-experimental-features ca-derivations --option experimental-features nix-command flakes --json: exit status 1

[DEBUG] 2023/06/23 09:38:50 go.jetpack.io/devbox/internal/boxcli/midcobra/debug.go:72: Command stderr: path '/home/worldofgeese/Downloads/projects/little_bits_of_buddha/.devbox/gen/flake/flake.nix' does not contain a 'flake.nix', searching up
warning: Git tree '/home/worldofgeese/Downloads/projects/little_bits_of_buddha/.devbox/gen/flake' is dirty
error: opening pseudoterminal master: No such device. 

Devbox is a Nix package available from the Nixpkgs repositories intended for local development using Nix flakes.

Message #20 received at 63546 <at> debbugs.gnu.org (full text, mbox):

From: Jonas Schneider-Bensch <taffinaround <at> gmail.com>
To: 63546 <at> debbugs.gnu.org
Subject: nix-channel error: opening pseudoterminal master: No such device
Date: Sat, 24 Jun 2023 08:54:14 +0200

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Perhaps this is a permissions issue with the nix shepherd service? I
haven't tried the patch linked above, but found that I could run

$ sudo nix-channel --update

without running into the issue. Then, I got the same error again when
trying to install any package with nix-env. Once again, I could run

$ sudo nix-env -i <some-package>

which would successfully install it to the root profile. After doing
this, however, I found that I now could run

$ nix-env -i <some-package>

to install the package to my user profile, presumably because the nix
store was populated by the run with sudo.

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Message #25 received at 63546 <at> debbugs.gnu.org (full text, mbox):

From: "Collin J. Doering" <collin <at> rekahsoft.ca>
To: 63546 <at> debbugs.gnu.org
Subject: nix-channel error: opening pseudoterminal master: No such device
Date: Tue, 27 Jun 2023 11:00:30 -0400

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For What Its Worth (fwiw): I found that restarting the nix-daemon shepherd service makes this issue go away for me.

Not sure what is the underlying cause, but thought I'd mention it for others.

Kind regards,

-- 
Collin J. Doering

http://rekahsoft.ca
http://blog.rekahsoft.ca
http://git.rekahsoft.ca

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Message #28 received at 63546 <at> debbugs.gnu.org (full text, mbox):

From: Haider <paralle1epiped <at> outlook.com>
To: 63546 <at> debbugs.gnu.org
Subject: /gnu/store/6wv8x4115jykg58fdgcjfka12vp2vms6-glibc-for-fhs-2.35/lib
Date: Sat, 01 Jul 2023 10:54:00 +0100

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Wow, thank you for the tempoary workaround.

It's quite obscure that it works though.

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