GNU bug report logs - #46555
LVM swap continuously fails guix system: error: service 'swap-/dev/mapper/guix-swap' requires 'device-mapping-guix-swap', which is not provided by any service

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

From: Shyam Saran <syamsaran12345 <at> gmail.com>
To: bug-guix <at> gnu.org
Subject: LVM swap continuously fails guix system: error: service
 'swap-/dev/mapper/guix-swap' requires 'device-mapping-guix-swap', which is
 not provided by any service
Date: Tue, 16 Feb 2021 15:41:49 +0530

[Message part 1 (text/plain, inline)]

Hi,

LVM/Device Mapper swap continuously fails for os configuration


with

  guix system: error: service 'swap-/dev/mapper/guix-swap' requires
'device-mapping-guix-swap', which is not provided by any service



which originates from code



(define swap-service-type
  (shepherd-service-type
   'swap
   (lambda (device)
     (define requirement
       (if (and (string? device)
                (string-prefix? "/dev/mapper/" device))
           (list (symbol-append 'device-mapping-
                                (string->symbol (basename device))))
           '()))


at
https://git.savannah.gnu.org/cgit/guix.git/tree/gnu/services/base.scm#n2171


Thanks
/shyam

[Message part 2 (text/html, inline)]

Message #8 received at 46555 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: Shyam Saran <syamsaran12345 <at> gmail.com>
Cc: 46555 <at> debbugs.gnu.org
Subject: Re: bug#46555: LVM swap continuously fails guix system: error:
 service 'swap-/dev/mapper/guix-swap' requires 'device-mapping-guix-swap',
 which is not provided by any service
Date: Mon, 22 Feb 2021 10:19:57 +0100

Hi Shyam,

Shyam Saran <syamsaran12345 <at> gmail.com> skribis:

> LVM/Device Mapper swap continuously fails for os configuration
>
>
> with
>
>   guix system: error: service 'swap-/dev/mapper/guix-swap' requires
> 'device-mapping-guix-swap', which is not provided by any service
>
>
>
> which originates from code
>
>
>
> (define swap-service-type
>   (shepherd-service-type
>    'swap
>    (lambda (device)
>      (define requirement
>        (if (and (string? device)
>                 (string-prefix? "/dev/mapper/" device))
>            (list (symbol-append 'device-mapping-
>                                 (string->symbol (basename device))))
>            '()))

You could need to define an LVM “device mapping” that provides
/dev/mapper/guix-swap:

  https://guix.gnu.org/manual/devel/en/html_node/Mapped-Devices.html#index-lvm_002ddevice_002dmapping

If you did already, could you send your complete config so we can have a
look?

Thanks,
Ludo’.

Message #11 received at 46555 <at> debbugs.gnu.org (full text, mbox):

From: Shyam Saran <syamsaran12345 <at> gmail.com>
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: 46555 <at> debbugs.gnu.org
Subject: Re: bug#46555: LVM swap continuously fails guix system: error:
 service 'swap-/dev/mapper/guix-swap' requires 'device-mapping-guix-swap',
 which is not provided by any service
Date: Tue, 23 Feb 2021 20:53:47 +0530

[Message part 1 (text/plain, inline)]

Thanks for response, I am attaching config.scm

If required then will try to make this file cleaner.



On Mon, 22 Feb 2021 at 14:50, Ludovic Courtès <ludo <at> gnu.org> wrote:

> Hi Shyam,
>
> Shyam Saran <syamsaran12345 <at> gmail.com> skribis:
>
> > LVM/Device Mapper swap continuously fails for os configuration
> >
> >
> > with
> >
> >   guix system: error: service 'swap-/dev/mapper/guix-swap' requires
> > 'device-mapping-guix-swap', which is not provided by any service
> >
> >
> >
> > which originates from code
> >
> >
> >
> > (define swap-service-type
> >   (shepherd-service-type
> >    'swap
> >    (lambda (device)
> >      (define requirement
> >        (if (and (string? device)
> >                 (string-prefix? "/dev/mapper/" device))
> >            (list (symbol-append 'device-mapping-
> >                                 (string->symbol (basename device))))
> >            '()))
>
> You could need to define an LVM “device mapping” that provides
> /dev/mapper/guix-swap:
>
>
> https://guix.gnu.org/manual/devel/en/html_node/Mapped-Devices.html#index-lvm_002ddevice_002dmapping
>
> If you did already, could you send your complete config so we can have a
> look?
>
> Thanks,
> Ludo’.
>


/shyam

[Message part 2 (text/html, inline)]

[config.scm (text/x-scheme, attachment)]

Message #14 received at 46555 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: Shyam Saran <syamsaran12345 <at> gmail.com>
Cc: 46555 <at> debbugs.gnu.org
Subject: Re: bug#46555: LVM swap continuously fails guix system: error:
 service 'swap-/dev/mapper/guix-swap' requires 'device-mapping-guix-swap',
 which is not provided by any service
Date: Thu, 25 Feb 2021 14:19:49 +0100

Hi,

Shyam Saran <syamsaran12345 <at> gmail.com> skribis:

> Thanks for response, I am attaching config.scm

I get:

--8<---------------cut here---------------start------------->8---
$ guix system build /tmp/config.scm
guix system: error: fiasko dum ŝargo de '/tmp/config.scm':
/tmp/config.scm:277:58: In procedure append: Wrong type argument in position 1 (expecting empty list): #<<file-system> device: "/dev/mapper/house-home" mount-point: "/home" type: "ext4" flags: () options: #f mount?: #t mount-may-fail?: #f needed-for-boot?: #f check?: #f create-mount-point?: #t dependencies: (#<<mapped-device> source: "/dev/sda31" targets: ("guix-root") type: #<<mapped-device-type> open: #<procedure open-non-udev-lvm-device (source targets)> close: #<procedure close-non-udev-lvm-device (sources targets)> check: #<procedure 7f839682c5e0 at ice-9/boot-9.scm:803:2 _>> location: ((line . 133) (column . 52) (filename . "/tmp/config.scm"))> #<<mapped-device> source: "/dev/sda31" targets: ("guix-boot") type: #<<mapped-device-type> open: #<procedure open-non-udev-lvm-device (source targets)> close: #<procedure close-non-udev-lvm-device (sources targets)> check: #<procedure 7f839682c5e0 at ice-9/boot-9.scm:803:2 _>> location: ((line . 137) (column . 52) (filename . "/tmp/config.scm"))> #<<mapped-device> source: "/dev/sda31" targets: ("guix-gnu") type: #<<mapped-device-type> open: #<procedure open-non-udev-lvm-device (source targets)> close: #<procedure close-non-udev-lvm-device (sources targets)> check: #<procedure 7f839682c5e0 at ice-9/boot-9.scm:803:2 _>> location: ((line . 141) (column . 52) (filename . "/tmp/config.scm"))> #<<mapped-device> source: "/dev/sda31" targets: ("guix-var") type: #<<mapped-device-type> open: #<procedure open-non-udev-lvm-device (source targets)> close: #<procedure close-non-udev-lvm-device (sources targets)> check: #<procedure 7f839682c5e0 at ice-9/boot-9.scm:803:2 _>> location: ((line . 153) (column . 52) (filename . "/tmp/config.scm"))> #<<mapped-device> source: "/dev/sda31" targets: ("guix-swap") type: #<<mapped-device-type> open: #<procedure open-non-udev-lvm-device (source targets)> close: #<procedure close-non-udev-lvm-device (sources targets)> check: #<procedure 7f839682c5e0 at ice-9/boot-9.scm:803:2 _>> location: ((line . 145) (column . 52) (filename . "/tmp/config.scm"))> #<<mapped-device> source: "/dev/sda31" targets: ("guix-tmp") type: #<<mapped-device-type> open: #<procedure open-non-udev-lvm-device (source targets)> close: #<procedure close-non-udev-lvm-device (sources targets)> check: #<procedure 7f839682c5e0 at ice-9/boot-9.scm:803:2 _>> location: ((line . 149) (column . 52) (filename . "/tmp/config.scm"))> #<<mapped-device> source: "/dev/test" targets: ("house-home") type: #<<mapped-device-type> open: #<procedure open-non-udev-lvm-device (source targets)> close: #<procedure close-non-udev-lvm-device (sources targets)> check: #<procedure 7f839682c5e0 at ice-9/boot-9.scm:803:2 _>> location: ((line . 157) (column . 52) (filename . "/tmp/config.scm"))>) location: ((line . 233) (column . 50) (filename . "/tmp/config.scm"))>
--8<---------------cut here---------------end--------------->8---

Could you make sure the file passes ‘guix system build’?

TIA,
Ludo’.

Message #17 received at 46555 <at> debbugs.gnu.org (full text, mbox):

From: Shyam Saran <syamsaran12345 <at> gmail.com>
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: 46555 <at> debbugs.gnu.org
Subject: Re: bug#46555: LVM swap continuously fails guix system: error:
 service 'swap-/dev/mapper/guix-swap' requires 'device-mapping-guix-swap',
 which is not provided by any service
Date: Fri, 26 Feb 2021 13:38:03 +0530

[Message part 1 (text/plain, inline)]

Result of application of system build command

$ guix  system   build ~/tmp/config.scm

               2s
guix system: warning: the following groups appear more than once: users
guix system: error: service 'swap-/dev/mapper/guix-swap' requires
'device-mapping-guix-swap', which is not provided by any service


To be sure everything are correct

I had created lvm volume group guix and house
and their subvolume root, boot, var, gnu, swap, tmp (in guix) and home (in
house)


Result is the same, whether these volume groups were present or not.


Thanks


On Thu, 25 Feb 2021 at 18:49, Ludovic Courtès <ludo <at> gnu.org> wrote:

> Hi,
>
> Shyam Saran <syamsaran12345 <at> gmail.com> skribis:
>
> > Thanks for response, I am attaching config.scm
>
> I get:
>
> --8<---------------cut here---------------start------------->8---
> $ guix system build /tmp/config.scm
> guix system: error: fiasko dum ŝargo de '/tmp/config.scm':
> /tmp/config.scm:277:58: In procedure append: Wrong type argument in
> position 1 (expecting empty list): #<<file-system> device:
> "/dev/mapper/house-home" mount-point: "/home" type: "ext4" flags: ()
> options: #f mount?: #t mount-may-fail?: #f needed-for-boot?: #f check?: #f
> create-mount-point?: #t dependencies: (#<<mapped-device> source:
> "/dev/sda31" targets: ("guix-root") type: #<<mapped-device-type> open:
> #<procedure open-non-udev-lvm-device (source targets)> close: #<procedure
> close-non-udev-lvm-device (sources targets)> check: #<procedure
> 7f839682c5e0 at ice-9/boot-9.scm:803:2 _>> location: ((line . 133) (column
> . 52) (filename . "/tmp/config.scm"))> #<<mapped-device> source:
> "/dev/sda31" targets: ("guix-boot") type: #<<mapped-device-type> open:
> #<procedure open-non-udev-lvm-device (source targets)> close: #<procedure
> close-non-udev-lvm-device (sources targets)> check: #<procedure
> 7f839682c5e0 at ice-9/boot-9.scm:803:2 _>> location: ((line . 137) (column
> . 52) (filename . "/tmp/config.scm"))> #<<mapped-device> source:
> "/dev/sda31" targets: ("guix-gnu") type: #<<mapped-device-type> open:
> #<procedure open-non-udev-lvm-device (source targets)> close: #<procedure
> close-non-udev-lvm-device (sources targets)> check: #<procedure
> 7f839682c5e0 at ice-9/boot-9.scm:803:2 _>> location: ((line . 141) (column
> . 52) (filename . "/tmp/config.scm"))> #<<mapped-device> source:
> "/dev/sda31" targets: ("guix-var") type: #<<mapped-device-type> open:
> #<procedure open-non-udev-lvm-device (source targets)> close: #<procedure
> close-non-udev-lvm-device (sources targets)> check: #<procedure
> 7f839682c5e0 at ice-9/boot-9.scm:803:2 _>> location: ((line . 153) (column
> . 52) (filename . "/tmp/config.scm"))> #<<mapped-device> source:
> "/dev/sda31" targets: ("guix-swap") type: #<<mapped-device-type> open:
> #<procedure open-non-udev-lvm-device (source targets)> close: #<procedure
> close-non-udev-lvm-device (sources targets)> check: #<procedure
> 7f839682c5e0 at ice-9/boot-9.scm:803:2 _>> location: ((line . 145) (column
> . 52) (filename . "/tmp/config.scm"))> #<<mapped-device> source:
> "/dev/sda31" targets: ("guix-tmp") type: #<<mapped-device-type> open:
> #<procedure open-non-udev-lvm-device (source targets)> close: #<procedure
> close-non-udev-lvm-device (sources targets)> check: #<procedure
> 7f839682c5e0 at ice-9/boot-9.scm:803:2 _>> location: ((line . 149) (column
> . 52) (filename . "/tmp/config.scm"))> #<<mapped-device> source:
> "/dev/test" targets: ("house-home") type: #<<mapped-device-type> open:
> #<procedure open-non-udev-lvm-device (source targets)> close: #<procedure
> close-non-udev-lvm-device (sources targets)> check: #<procedure
> 7f839682c5e0 at ice-9/boot-9.scm:803:2 _>> location: ((line . 157) (column
> . 52) (filename . "/tmp/config.scm"))>) location: ((line . 233) (column .
> 50) (filename . "/tmp/config.scm"))>
> --8<---------------cut here---------------end--------------->8---
>
> Could you make sure the file passes ‘guix system build’?
>
> TIA,
> Ludo’.
>

[Message part 2 (text/html, inline)]

[config.scm (text/x-scheme, attachment)]

Message #20 received at 46555 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: Shyam Saran <syamsaran12345 <at> gmail.com>
Cc: 46555 <at> debbugs.gnu.org
Subject: Re: bug#46555: LVM swap continuously fails guix system: error:
 service 'swap-/dev/mapper/guix-swap' requires 'device-mapping-guix-swap',
 which is not provided by any service
Date: Mon, 01 Mar 2021 10:26:01 +0100

Hi Shyam,

Shyam Saran <syamsaran12345 <at> gmail.com> skribis:

> Result of application of system build command
>
> $ guix  system   build ~/tmp/config.scm
>
>                2s
> guix system: warning: the following groups appear more than once: users
> guix system: error: service 'swap-/dev/mapper/guix-swap' requires
> 'device-mapping-guix-swap', which is not provided by any service

The problem here is that you had:

  (file-system
    (mount-point "/")
    ;; …
    (needed-for-boot? #t)
    (dependencies %localmachine-mapped-devices))

All the needed-for-boot file systems had all the mapped devices in
‘dependencies’.  Thus, no ‘device-mapping-guix-swap’ Shepherd service
was created, because that device mapping was needed at boot.

The solution is to remove the ‘dependencies’ field for all your file
systems.  Since they have /dev/mapper/… as their ’device’, you don’t
need ‘dependencies’: it’s automatically inferred.  If, after this
change, you run:

  guix system shepherd-graph /tmp/config.scm| xdot -

you can see that the ‘swap-/dev/mapper/guix-swap’ service depends on
‘device-mapping-guix-swap’.

HTH!

Ludo’.

Message #23 received at 46555 <at> debbugs.gnu.org (full text, mbox):

From: Shyam Saran <syamsaran12345 <at> gmail.com>
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: 46555 <at> debbugs.gnu.org
Subject: Re: bug#46555: LVM swap continuously fails guix system: error:
 service 'swap-/dev/mapper/guix-swap' requires 'device-mapping-guix-swap',
 which is not provided by any service
Date: Tue, 2 Mar 2021 16:04:55 +0530

[Message part 1 (text/plain, inline)]

As mentioned I had removed all dependency for root "/" fs

but result is same

$ guix  system   build ~/tmp/config.scm
guix system: warning: the following groups appear more than once: users
guix system: error: service 'swap-/dev/mapper/guix-swap' requires
'device-mapping-guix-swap', which is not provided by any service

Then again removed all dependencies from all fs /var /gnu /tmp etc
But the result is the same.

$ guix  system   build ~/tmp/config.scm
guix system: warning: the following groups appear more than once: users
guix system: error: service 'swap-/dev/mapper/guix-swap' requires
'device-mapping-guix-swap', which is not provided by any service


Thanks


On Mon, 1 Mar 2021 at 14:56, Ludovic Courtès <ludo <at> gnu.org> wrote:

> Hi Shyam,
>
> Shyam Saran <syamsaran12345 <at> gmail.com> skribis:
>
> > Result of application of system build command
> >
> > $ guix  system   build ~/tmp/config.scm
> >
> >                2s
> > guix system: warning: the following groups appear more than once: users
> > guix system: error: service 'swap-/dev/mapper/guix-swap' requires
> > 'device-mapping-guix-swap', which is not provided by any service
>
> The problem here is that you had:
>
>   (file-system
>     (mount-point "/")
>     ;; …
>     (needed-for-boot? #t)
>     (dependencies %localmachine-mapped-devices))
>
> All the needed-for-boot file systems had all the mapped devices in
> ‘dependencies’.  Thus, no ‘device-mapping-guix-swap’ Shepherd service
> was created, because that device mapping was needed at boot.
>
> The solution is to remove the ‘dependencies’ field for all your file
> systems.  Since they have /dev/mapper/… as their ’device’, you don’t
> need ‘dependencies’: it’s automatically inferred.  If, after this
> change, you run:
>
>   guix system shepherd-graph /tmp/config.scm| xdot -
>
> you can see that the ‘swap-/dev/mapper/guix-swap’ service depends on
> ‘device-mapping-guix-swap’.
>
> HTH!
>
> Ludo’.
>

[Message part 2 (text/html, inline)]

Message #26 received at 46555 <at> debbugs.gnu.org (full text, mbox):

From: Shyam Saran <syamsaran12345 <at> gmail.com>
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: 46555 <at> debbugs.gnu.org
Subject: Re: bug#46555: LVM swap continuously fails guix system: error:
 service 'swap-/dev/mapper/guix-swap' requires 'device-mapping-guix-swap',
 which is not provided by any service
Date: Tue, 2 Mar 2021 16:12:19 +0530

[Message part 1 (text/plain, inline)]

Sorry

I had forgot to remove

dependency from /boot/efi


So it was causing this error

attached the file, reconfiguring the whole system
hoping it must work



Thanks very much for all the help :)




On Tue, 2 Mar 2021 at 16:04, Shyam Saran <syamsaran12345 <at> gmail.com> wrote:

> As mentioned I had removed all dependency for root "/" fs
>
> but result is same
>
> $ guix  system   build ~/tmp/config.scm
> guix system: warning: the following groups appear more than once: users
> guix system: error: service 'swap-/dev/mapper/guix-swap' requires
> 'device-mapping-guix-swap', which is not provided by any service
>
> Then again removed all dependencies from all fs /var /gnu /tmp etc
> But the result is the same.
>
> $ guix  system   build ~/tmp/config.scm
> guix system: warning: the following groups appear more than once: users
> guix system: error: service 'swap-/dev/mapper/guix-swap' requires
> 'device-mapping-guix-swap', which is not provided by any service
>
>
> Thanks
>
>
> On Mon, 1 Mar 2021 at 14:56, Ludovic Courtès <ludo <at> gnu.org> wrote:
>
>> Hi Shyam,
>>
>> Shyam Saran <syamsaran12345 <at> gmail.com> skribis:
>>
>> > Result of application of system build command
>> >
>> > $ guix  system   build ~/tmp/config.scm
>> >
>> >                2s
>> > guix system: warning: the following groups appear more than once: users
>> > guix system: error: service 'swap-/dev/mapper/guix-swap' requires
>> > 'device-mapping-guix-swap', which is not provided by any service
>>
>> The problem here is that you had:
>>
>>   (file-system
>>     (mount-point "/")
>>     ;; …
>>     (needed-for-boot? #t)
>>     (dependencies %localmachine-mapped-devices))
>>
>> All the needed-for-boot file systems had all the mapped devices in
>> ‘dependencies’.  Thus, no ‘device-mapping-guix-swap’ Shepherd service
>> was created, because that device mapping was needed at boot.
>>
>> The solution is to remove the ‘dependencies’ field for all your file
>> systems.  Since they have /dev/mapper/… as their ’device’, you don’t
>> need ‘dependencies’: it’s automatically inferred.  If, after this
>> change, you run:
>>
>>   guix system shepherd-graph /tmp/config.scm| xdot -
>>
>> you can see that the ‘swap-/dev/mapper/guix-swap’ service depends on
>> ‘device-mapping-guix-swap’.
>>
>> HTH!
>>
>> Ludo’.
>>
>

[Message part 2 (text/html, inline)]

[config.scm (text/x-scheme, attachment)]

Message #29 received at 46555 <at> debbugs.gnu.org (full text, mbox):

From: Shyam Saran <syamsaran12345 <at> gmail.com>
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: 46555 <at> debbugs.gnu.org
Subject: Re: bug#46555: LVM swap continuously fails guix system: error:
 service 'swap-/dev/mapper/guix-swap' requires 'device-mapping-guix-swap',
 which is not provided by any service
Date: Tue, 2 Mar 2021 21:42:09 +0530

[Message part 1 (text/plain, inline)]

Hi

after reconfigure

building
/gnu/store/qnskr1r67lp92bgy136hqvm7r96s3qrd-upgrade-shepherd-services.scm.drv...
guix system: warning: exception caught while executing 'start' on service
'swap-/dev/mapper/guix-swap':
In procedure swapon: "/dev/mapper/guix-swap": Invalid argument
guix system: warning: some services could not be upgraded
hint: To allow changes to all the system services to take effect, you will
need to reboot.

after 2 reboots also

$ cat /proc/swaps

   27s
Filename Type Size Used Priority
$ swapon -s
$ sudo swapon -s
$ swapon --all --verbose
$ sudo swapon --all --verbose
$




I do not see swap is getting enabled.


Thanks



On Tue, 2 Mar 2021 at 16:12, Shyam Saran <syamsaran12345 <at> gmail.com> wrote:

> Sorry
>
> I had forgot to remove
>
> dependency from /boot/efi
>
>
> So it was causing this error
>
> attached the file, reconfiguring the whole system
> hoping it must work
>
>
>
> Thanks very much for all the help :)
>
>
>
>
> On Tue, 2 Mar 2021 at 16:04, Shyam Saran <syamsaran12345 <at> gmail.com> wrote:
>
>> As mentioned I had removed all dependency for root "/" fs
>>
>> but result is same
>>
>> $ guix  system   build ~/tmp/config.scm
>> guix system: warning: the following groups appear more than once: users
>> guix system: error: service 'swap-/dev/mapper/guix-swap' requires
>> 'device-mapping-guix-swap', which is not provided by any service
>>
>> Then again removed all dependencies from all fs /var /gnu /tmp etc
>> But the result is the same.
>>
>> $ guix  system   build ~/tmp/config.scm
>> guix system: warning: the following groups appear more than once: users
>> guix system: error: service 'swap-/dev/mapper/guix-swap' requires
>> 'device-mapping-guix-swap', which is not provided by any service
>>
>>
>> Thanks
>>
>>
>> On Mon, 1 Mar 2021 at 14:56, Ludovic Courtès <ludo <at> gnu.org> wrote:
>>
>>> Hi Shyam,
>>>
>>> Shyam Saran <syamsaran12345 <at> gmail.com> skribis:
>>>
>>> > Result of application of system build command
>>> >
>>> > $ guix  system   build ~/tmp/config.scm
>>> >
>>> >                2s
>>> > guix system: warning: the following groups appear more than once: users
>>> > guix system: error: service 'swap-/dev/mapper/guix-swap' requires
>>> > 'device-mapping-guix-swap', which is not provided by any service
>>>
>>> The problem here is that you had:
>>>
>>>   (file-system
>>>     (mount-point "/")
>>>     ;; …
>>>     (needed-for-boot? #t)
>>>     (dependencies %localmachine-mapped-devices))
>>>
>>> All the needed-for-boot file systems had all the mapped devices in
>>> ‘dependencies’.  Thus, no ‘device-mapping-guix-swap’ Shepherd service
>>> was created, because that device mapping was needed at boot.
>>>
>>> The solution is to remove the ‘dependencies’ field for all your file
>>> systems.  Since they have /dev/mapper/… as their ’device’, you don’t
>>> need ‘dependencies’: it’s automatically inferred.  If, after this
>>> change, you run:
>>>
>>>   guix system shepherd-graph /tmp/config.scm| xdot -
>>>
>>> you can see that the ‘swap-/dev/mapper/guix-swap’ service depends on
>>> ‘device-mapping-guix-swap’.
>>>
>>> HTH!
>>>
>>> Ludo’.
>>>
>>

[Message part 2 (text/html, inline)]

Message #32 received at 46555 <at> debbugs.gnu.org (full text, mbox):

From: Shyam Saran <syamsaran12345 <at> gmail.com>
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: 46555 <at> debbugs.gnu.org
Subject: Re: bug#46555: LVM swap continuously fails guix system: error:
 service 'swap-/dev/mapper/guix-swap' requires 'device-mapping-guix-swap',
 which is not provided by any service
Date: Thu, 4 Mar 2021 12:52:33 +0530

[Message part 1 (text/plain, inline)]

Sorry again, it is excellently working

In boot I had noticed

enabling swap DEVICE
swap signature is missing on DEVICE

than understood I had not marked it as swap

$ cat /proc/swaps; sudo swapon --all --verbose ; sudo swapon -s ; free -h
Filename Type Size Used Priority
/dev/mapper/guix-swap            partition 1048572 0 -2
Filename Type Size Used Priority
/dev/mapper/guix-swap           partition 1048572 0 -2
             total        used        free      shared  buff/cache
available
Mem:           31Gi       1.6Gi        28Gi       1.0Mi       1.6Gi
 29Gi
Swap:         1.0Gi          0B       1.0Gi



Thanks very much for great help and GNU, Guix, and all the stuff.

Thanks again


Shyam



On Tue, 2 Mar 2021 at 21:42, Shyam Saran <syamsaran12345 <at> gmail.com> wrote:

> Hi
>
> after reconfigure
>
> building
> /gnu/store/qnskr1r67lp92bgy136hqvm7r96s3qrd-upgrade-shepherd-services.scm.drv...
> guix system: warning: exception caught while executing 'start' on service
> 'swap-/dev/mapper/guix-swap':
> In procedure swapon: "/dev/mapper/guix-swap": Invalid argument
> guix system: warning: some services could not be upgraded
> hint: To allow changes to all the system services to take effect, you will
> need to reboot.
>
> after 2 reboots also
>
> $ cat /proc/swaps
>
>      27s
> Filename Type Size Used Priority
> $ swapon -s
> $ sudo swapon -s
> $ swapon --all --verbose
> $ sudo swapon --all --verbose
> $
>
>
>
>
> I do not see swap is getting enabled.
>
>
> Thanks
>
>
>
> On Tue, 2 Mar 2021 at 16:12, Shyam Saran <syamsaran12345 <at> gmail.com> wrote:
>
>> Sorry
>>
>> I had forgot to remove
>>
>> dependency from /boot/efi
>>
>>
>> So it was causing this error
>>
>> attached the file, reconfiguring the whole system
>> hoping it must work
>>
>>
>>
>> Thanks very much for all the help :)
>>
>>
>>
>>
>> On Tue, 2 Mar 2021 at 16:04, Shyam Saran <syamsaran12345 <at> gmail.com>
>> wrote:
>>
>>> As mentioned I had removed all dependency for root "/" fs
>>>
>>> but result is same
>>>
>>> $ guix  system   build ~/tmp/config.scm
>>> guix system: warning: the following groups appear more than once: users
>>> guix system: error: service 'swap-/dev/mapper/guix-swap' requires
>>> 'device-mapping-guix-swap', which is not provided by any service
>>>
>>> Then again removed all dependencies from all fs /var /gnu /tmp etc
>>> But the result is the same.
>>>
>>> $ guix  system   build ~/tmp/config.scm
>>> guix system: warning: the following groups appear more than once: users
>>> guix system: error: service 'swap-/dev/mapper/guix-swap' requires
>>> 'device-mapping-guix-swap', which is not provided by any service
>>>
>>>
>>> Thanks
>>>
>>>
>>> On Mon, 1 Mar 2021 at 14:56, Ludovic Courtès <ludo <at> gnu.org> wrote:
>>>
>>>> Hi Shyam,
>>>>
>>>> Shyam Saran <syamsaran12345 <at> gmail.com> skribis:
>>>>
>>>> > Result of application of system build command
>>>> >
>>>> > $ guix  system   build ~/tmp/config.scm
>>>> >
>>>> >                2s
>>>> > guix system: warning: the following groups appear more than once:
>>>> users
>>>> > guix system: error: service 'swap-/dev/mapper/guix-swap' requires
>>>> > 'device-mapping-guix-swap', which is not provided by any service
>>>>
>>>> The problem here is that you had:
>>>>
>>>>   (file-system
>>>>     (mount-point "/")
>>>>     ;; …
>>>>     (needed-for-boot? #t)
>>>>     (dependencies %localmachine-mapped-devices))
>>>>
>>>> All the needed-for-boot file systems had all the mapped devices in
>>>> ‘dependencies’.  Thus, no ‘device-mapping-guix-swap’ Shepherd service
>>>> was created, because that device mapping was needed at boot.
>>>>
>>>> The solution is to remove the ‘dependencies’ field for all your file
>>>> systems.  Since they have /dev/mapper/… as their ’device’, you don’t
>>>> need ‘dependencies’: it’s automatically inferred.  If, after this
>>>> change, you run:
>>>>
>>>>   guix system shepherd-graph /tmp/config.scm| xdot -
>>>>
>>>> you can see that the ‘swap-/dev/mapper/guix-swap’ service depends on
>>>> ‘device-mapping-guix-swap’.
>>>>
>>>> HTH!
>>>>
>>>> Ludo’.
>>>>
>>>

[Message part 2 (text/html, inline)]

Message #37 received at 46555-done <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: Shyam Saran <syamsaran12345 <at> gmail.com>
Cc: 46555-done <at> debbugs.gnu.org
Subject: Re: bug#46555: LVM swap continuously fails guix system: error:
 service 'swap-/dev/mapper/guix-swap' requires 'device-mapping-guix-swap',
 which is not provided by any service
Date: Mon, 08 Mar 2021 14:28:12 +0100

Hi,

Shyam Saran <syamsaran12345 <at> gmail.com> skribis:

> Sorry again, it is excellently working

Great, thanks for checking!

Ludo’.

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