GNU bug report logs - #45139
Dico fails with "Read-only file system" message

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

From: "Jorge P. de Morais Neto" <jorge+list <at> disroot.org>
To: bug-guix <at> gnu.org
Subject: Dico fails with "Read-only file system" message
Date: Wed, 09 Dec 2020 13:34:57 -0300

Hi.  Some time ago I was able to use Guix-installed dico on my Debian
buster system, but since some days ago it fails with

    $ dico -tvvv puppy
    dico: Error: Invalid reply from server
    dico: Error: /home/jorge/.dico:1: Cannot connect to the server
    dico: Error: Invalid reply from server
    dico: Error: .dico:1: Cannot connect to the server
    dico: Debug: Connecting to dict://localhost:2628
    dico: Debug: S:idxgcide: Error: cannot create index file `/home/jorge/.guix-profile/share/gcide/GCIDE.IDX': Read-only file system
    dico: Error: Invalid reply from server

The Emacs interface (dictionary package, installed from MELPA*) also
fails with the error message:
    dictionary-check-initial-reply: Server returned: idxgcide: Error: cannot create index file `/home/jorge/.guix-profile/share/gcide/GCIDE.IDX': Read-only file system

This is probably caused by the gnu-store.mount Systemd service which I
recently enabled.  However, enabling this service is recommended by the
manual (see [[info:guix#Binary Installation]]), so I believe this is a
bug.

Will you find a way to make Dico work on a read-only file system?  In
the meantime, is it safe and secure for me to temporarily disable
gnu-store.mount as a workaround?

Regards

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Message #10 received at 45139-done <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: 45139-done <at> debbugs.gnu.org
Subject: Re: bug#45139: Dico fails with "Read-only file system" message
Date: Mon, 07 Aug 2023 11:45:26 +0200

Hello,

Replying to an old bug…

"Jorge P. de Morais Neto" <jorge+list <at> disroot.org> skribis:

> Hi.  Some time ago I was able to use Guix-installed dico on my Debian
> buster system, but since some days ago it fails with
>
>     $ dico -tvvv puppy
>     dico: Error: Invalid reply from server
>     dico: Error: /home/jorge/.dico:1: Cannot connect to the server
>     dico: Error: Invalid reply from server
>     dico: Error: .dico:1: Cannot connect to the server
>     dico: Debug: Connecting to dict://localhost:2628
>     dico: Debug: S:idxgcide: Error: cannot create index file `/home/jorge/.guix-profile/share/gcide/GCIDE.IDX': Read-only file system
>     dico: Error: Invalid reply from server

On Guix System this does not happen because dicod is currently started
to write the index file to /var/run/dicod, which is writable for itself.

I guess the solution is to start dicod using the Guix System service or
the upcoming Guix Home service: <https://issues.guix.gnu.org/65119>.

Ludo’.

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