unofficial mirror of help-guix@gnu.org 
 help / color / mirror / Atom feed
From: Nathan Dehnel <ncdehnel@gmail.com>
To: Tobias Geerinckx-Rice <me@tobias.gr>
Cc: help-guix@gnu.org
Subject: Re: /dev/bcache/by-uuid directory empty
Date: Tue, 22 Dec 2020 21:51:02 -0600	[thread overview]
Message-ID: <CAEEhgEub6J_xOFOGGNdofc5-Rj0F2nR0e0f64a5f9uOoq5GbtQ@mail.gmail.com> (raw)
In-Reply-To: <CAEEhgEv_QRyv0dUqBsXiOvBXLpnSfbDo1DxbEWLZKTQ=etqJOQ@mail.gmail.com>

(define-module (gooby-channel packages bcache-tools)
  #:use-module (guix licenses)
  #:use-module (guix packages)
  #:use-module (gnu packages)
  #:use-module (guix build-system gnu)
  #:use-module (guix git-download)
  #:use-module (gnu packages linux)
  #:use-module (gnu packages pkg-config))

(define-public bcache-tools
  (package
    (name "bcache-tools")
    (version "1.1")
    (source
     (origin
       (method git-fetch)
       (uri
        (git-reference
         (url (string-append
"https://git.kernel.org/pub/scm/linux/kernel/git/colyli/" name
".git"))
         (commit (string-append name "-" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32
         "1vfqm3asx7h1sjwyq45dki4wk7lkipqrx2pw2hnqm4xir85qf67h"))
       (patches (search-patches "bcache-tools-noprobe.patch"))))
    (build-system gnu-build-system)
    (arguments
     `(;;#:tests? #f                      ; no "check" target
       #:make-flags
         (list (string-append "PREFIX=" (assoc-ref %outputs "out")))
       #:phases
         (modify-phases %standard-phases
          (delete 'configure))))
    (inputs
     `(("util-linux" ,util-linux)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (home-page "https://bcache.evilpiepirate.org/")
    (synopsis "These are the userspace tools required for bcache.")
    (description "Bcache patches for the Linux kernel allow one to use
SSDs to cache other block devices. It's analogous to L2Arc for ZFS,
but Bcache also does writeback caching (besides just write through
caching), and it's filesystem agnostic. ")
    (license gpl2)))

I tried to make a package, but I got stuck.
https://www.mail-archive.com/bug-guix@gnu.org/msg00180.html
According to this,  if you use gnu-build-system, all packages added to
inputs get added to PKG_CONFIG_PATH, but for some reason it's not
happening for util-linux, which causes a build error.

On Fri, Dec 18, 2020 at 10:31 AM Nathan Dehnel <ncdehnel@gmail.com> wrote:
>
> >which is a bit more than that.  Guix doesn't ship bcache-tools
> (yet); are you using your own package?  If so, please consider
> sharing :-)
>
> I could try to make a package.
>
> >Have you tried this?
>
> Yes.
>
> On Fri, Dec 18, 2020 at 8:13 AM Tobias Geerinckx-Rice <me@tobias.gr> wrote:
> >
> > Nathan,
> >
> > You may well be the first to (try to) use bcache on Guix System.
> >
> > Nathan Dehnel 写道:
> > > The manual https://www.kernel.org/doc/Documentation/bcache.txt
> > > states
> > > that udev is necessary, and it is enabled:
> >
> > It says:
> >
> > --8<---------------cut here---------------start------------->8---
> > bcache-tools now ships udev rules, and bcache devices are known to
> > the kernel immediately.
> > --8<---------------cut here---------------end--------------->8---
> >
> > which is a bit more than that.  Guix doesn't ship bcache-tools
> > (yet); are you using your own package?  If so, please consider
> > sharing :-)
> >
> > You'd have to add it to the RULES field of your system's
> > UDEV-CONFIGURATION to make the system's udev ‘see’ the rules.
> > Simply installing it or adding it to your system packages isn't
> > enough.
> >
> > The kernel docs continue:
> >
> > --8<---------------cut here---------------start------------->8---
> > Without udev, you can manually register devices like this::
> >
> >   echo /dev/sdb > /sys/fs/bcache/register
> >   echo /dev/sdc > /sys/fs/bcache/register
> >
> > Registering the backing device makes the bcache device show up in
> > /dev; you can now format it and use it as normal.
> > --8<---------------cut here---------------end--------------->8---
> >
> > Have you tried this?
> >
> > Good luck,
> >
> > T G-R


      reply	other threads:[~2020-12-23  3:51 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-17 23:30 /dev/bcache/by-uuid directory empty Nathan Dehnel
2020-12-18 14:13 ` Tobias Geerinckx-Rice
2020-12-18 16:31   ` Nathan Dehnel
2020-12-23  3:51     ` Nathan Dehnel [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://guix.gnu.org/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CAEEhgEub6J_xOFOGGNdofc5-Rj0F2nR0e0f64a5f9uOoq5GbtQ@mail.gmail.com \
    --to=ncdehnel@gmail.com \
    --cc=help-guix@gnu.org \
    --cc=me@tobias.gr \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).