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* ZFS on Guix
@ 2021-01-02  6:16 raid5atemyhomework
  2021-01-02  6:40 ` raid5atemyhomework
  0 siblings, 1 reply; 25+ messages in thread
From: raid5atemyhomework @ 2021-01-02  6:16 UTC (permalink / raw)
  To: guix-devel@gnu.org

Hi guix-developers,

I'm trying to get ZFS working on a test VM running Guix System.

Attempting to do a simple `guix install zfs` does not work, as I reported in https://issues.guix.gnu.org/45401 , ZFS 0.8.5 is only up to kernel 5.9 but latest guix has kernel 5.10.

I created a procedure to modify the base `zfs` package and compile it for a different Linux kernel:

```scheme
(define (make-zfs-package kernel)
  (package
    (inherit zfs)
    (name (string-append "zfs-for-"
                         (package-name kernel)
                         "-"
                         (package-version kernel)
                         "-version"))
    (arguments
      (cons* #:linux kernel (package-arguments zfs)))))
```

Then in my system configuration `.scm`, I selected a specific Linux and had its module added to the boot and had it loaded in a Shepherd service:

```scheme
(define system-kernel linux-libre-5.4)
(define system-zfs (make-zfs-package system-kernel))

;; ...

(operating-system
  (kernel system-kernel)
  (kernel-loadable-modules (list (list system-zfs "module")))
  ;; ...
  (packages
    (cons* system-zfs
           ; ...
           %base-packages))
  ;; ...

  (services
    (cons* (service kernel-module-loader-service-type
                    '("zfs"))
           ; ...
           %base-services))
  ;; ...
  )
```

As I documented here: https://issues.guix.gnu.org/45592#1

Now ZFS is loaded at boot (`lsmod | grep zfs` shows ZFS loaded), and `zfs version` and `zpool list` don't error out.

However, when I created some extra space in the QEMU image and created a partition `vda3`, I get an error in `zpool create tank vda3`.
The error is `cannot mount 'tank': Input/output error`.

I've also tried adding a new device to the QEMU boot as well, also the same occurs.

Looking at a partition editor, the partition does get formatted as zfs, it just won't mount.



Has anyone ever managed to get ZFS working on Guix?  Any tips?  Is it enough to `modprobe` it in a system service or does it have to somehow be added to the Linux command line?  Maybe it only works on even older Linux-libre versions than 5.4?

Thanks
raid5atemyhomework


^ permalink raw reply	[flat|nested] 25+ messages in thread
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end of thread, other threads:[~2021-02-10  8:31 UTC | newest]

Thread overview: 25+ messages (download: mbox.gz / follow: Atom feed)
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2021-01-02  6:16 ZFS on Guix raid5atemyhomework
2021-01-02  6:40 ` raid5atemyhomework
2021-01-03 15:50   ` Danny Milosavljevic
     [not found]     ` <Kyzl4xnRrDtWbTkAmBf1i8mtSZvu-AYatdazY1NsABFAzqqi7HQl-t0d2LWAInr8n7KxGyJWfIfTWqrefrxdgWelKbr2SWc9ATV5P8zrVtw=3D@protonmail.com>
     [not found]       ` <DmzbKm-kVn1tCfYc4eAXeEEbj3RN28qvXJaLL6dHtBBeNdXE-e-vN-a4Y-De38H8jI5lt19mauUTz9k0JArMyOT2ciYoxKY8mXFw3xeHGqo=3D@protonmail.com>
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2021-01-04  0:50     ` raid5atemyhomework
2021-01-04  1:15       ` raid5atemyhomework
2021-01-05 11:02         ` raid5atemyhomework
2021-01-05 14:56           ` raid5atemyhomework
2021-01-06  0:59             ` Carlo Zancanaro
2021-01-06  3:50               ` raid5atemyhomework
2021-01-06  3:58                 ` Carlo Zancanaro
     [not found]                   ` <t=5Ft9LHglTTJw2Bhtd2xX4JCJeZBi5Drqg0t04vJsfRLfoENqpftZcuHO8LYi2AO05P71lbbCgQC5etCDiPsdcssJmw1pHGyCY3 gUT-9w9?= =?us-ascii?Q?=5Fo=3D@protonmail.com>
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2021-01-06  4:41                   ` raid5atemyhomework
2021-01-06  5:20                     ` raid5atemyhomework
2021-01-06 15:58                       ` raid5atemyhomework
2021-01-09 18:14                         ` raid5atemyhomework
2021-01-10  5:17                           ` raid5atemyhomework
2021-02-08  2:13                             ` raid5atemyhomework
2021-02-08  3:51                               ` Joshua Branson
2021-02-08  6:04                                 ` raid5atemyhomework
2021-02-08  6:13                               ` raid5atemyhomework
2021-02-08  9:17                               ` Maxime Devos
2021-02-08  9:32                                 ` raid5atemyhomework
2021-02-08  9:35                                   ` Maxime Devos
2021-02-10  8:29                                   ` Efraim Flashner
2021-02-08  2:16                 ` Danny Milosavljevic
2021-02-10  7:37                   ` raid5atemyhomework
     [not found] <=5F1CLe9QSGsoMlu5WxBMXm4CbFLM=5FM9iRG1XQF9GDsK0GP208jpngdymfix4tAfoLP94mhMTt-Tx6OP2xN=5Fn78Jhx5KQzkiqPpIci=5F44C9OI=3D@protonmail.com>

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