guix system image fails with: service 'swap-/swapfile' requires 'file-system-/'

guix system image fails with: service 'swap-/swapfile' requires 'file-system-/'

[Martin Castillo]

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Hi,

I'm testing guix system image with the attachend config, and I get
this error:

/mnt/root/man.config.scm:35:14: warning: the 'target' field is 
deprecated, please use 'targets' instead
guix system: warning: Consider running 'guix pull' followed by
'guix system reconfigure' to get up-to-date packages and security updates.

guix system: error: service 'swap-/swapfile' requires 'file-system-/', 
which is not provided by any service

I can't find anything regarding a file-system-/ service. I do have a 
rootpartition in 'file-systems'. Why is that not sufficient?

If I remove the dependency in swap-devices, it builds, though the system 
gets stuck on boot shortly after generating ssh keys. Picture is 
attached. Any hints for that problem?


Martin



(use-modules (gnu))
(use-service-modules desktop networking ssh xorg)

(operating-system
   (locale "de_DE.utf8")
   (timezone "Europe/Berlin")
   (keyboard-layout (keyboard-layout "de" "neo"))
   (host-name "minswap")
   (issue "minimal system with swap, swap dependencies")
   (users (cons* (user-account
                   (name "mcd")
                   (comment "Martin")
                   (group "users")
                   (home-directory "/home/mcd")
                   (supplementary-groups
                     '("wheel" "netdev" "audio" "video")))
                 %base-user-accounts))
   (packages
     (append
       (list (specification->package "nss-certs"))
       %base-packages))
   (services
     (append
       (list (service dhcp-client-service-type)
             (service openssh-service-type)
             )
       %base-services))
   (bootloader
     (bootloader-configuration
       (bootloader grub-efi-bootloader)
       (target "/efi") ; deprecated
       (keyboard-layout keyboard-layout)))
   (mapped-devices
     (list (mapped-device
	    (source (uuid "e35658c9-6e31-431a-9397-2e988e32fe63"))
	    (target "lukspart")
	    (type luks-device-mapping))
	  (mapped-device
	    (source "lvmSystem")
	    (target "lvmSystem-volRoot")
	    (type lvm-device-mapping))))
   (file-systems
     (cons* (file-system
              (mount-point "/efi")
              (device (uuid "845E-533F" 'fat32))
              (type "vfat"))
            (file-system
              (mount-point "/")
              (device ; mapped device name: lvmSystem-volRoot, FS-label 
is guixsd-root
                (uuid "0584a348-341b-475d-b19f-93b5567ee02b"
                      'ext4))
              (type "ext4")
	     (needed-for-boot? #t)
	     (dependencies mapped-devices))
            %base-file-systems))
   (swap-devices
     (list
       (swap-space
	(target "/swapfile")
	(dependencies (filter
			(file-system-mount-point-predicate "/")
			file-systems)))))
   (kernel-arguments
     (cons* "resume=/swapfile"
	   %default-kernel-arguments

[-- Attachment #2: encrypted_root-swap-nodep_boot-stuck.png --]
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Re: guix system image fails with: service 'swap-/swapfile' requires 'file-system-/'

[Ludovic Courtès]

Hi Martin,

Sorry for the late reply.

Martin Castillo <castilma@uni-bremen.de> skribis:


[...]

> /mnt/root/man.config.scm:35:14: warning: the 'target' field is
> deprecated, please use 'targets' instead
> guix system: warning: Consider running 'guix pull' followed by
> 'guix system reconfigure' to get up-to-date packages and security updates.
>
> guix system: error: service 'swap-/swapfile' requires 'file-system-/',
> which is not provided by any service
>
> I can't find anything regarding a file-system-/ service. I do have a
> rootpartition in 'file-systems'. Why is that not sufficient?

You can definitely omit the ‘dependencies’ field of ‘swap-space’: it’s
implicit that the root file system is already mounted by the time swap
is activated.

> If I remove the dependency in swap-devices, it builds, though the
> system gets stuck on boot shortly after generating ssh keys. Picture
> is attached. Any hints for that problem?

How did you test?  With ‘guix system vm’?

The OS config you provided is truncated, so we can’t test it :-), but if
you provide the full thing we can give it a try.

Thanks,
Ludo’.

Re: guix system image fails with: service 'swap-/swapfile' requires 'file-system-/'

[Martin Castillo]

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Hi,

Am 07.03.23 um 16:50 schrieb Ludovic Courtès:
> Hi Martin,
> 
> Sorry for the late reply.
> 
> Martin Castillo <castilma@uni-bremen.de> skribis:
> 
> 
> [...]
> 
>> /mnt/root/man.config.scm:35:14: warning: the 'target' field is
>> deprecated, please use 'targets' instead
>> guix system: warning: Consider running 'guix pull' followed by
>> 'guix system reconfigure' to get up-to-date packages and security updates.
>>
>> guix system: error: service 'swap-/swapfile' requires 'file-system-/',
>> which is not provided by any service
>>
>> I can't find anything regarding a file-system-/ service. I do have a
>> rootpartition in 'file-systems'. Why is that not sufficient?
> 
> You can definitely omit the ‘dependencies’ field of ‘swap-space’: it’s
> implicit that the root file system is already mounted by the time swap
> is activated.
> 

What is the error message then about?

>> If I remove the dependency in swap-devices, it builds, though the
>> system gets stuck on boot shortly after generating ssh keys. Picture
>> is attached. Any hints for that problem?
> 
> How did you test?  With ‘guix system vm’?


I started the image with
  qemu-system-x86_64  -drive 
media=disk,file=dk1cc2q05zcw6rbc8l8vm7d6zb9rw771-image.qcow2 -m 1.5G 
-bios /usr/share/ovmf/x64/OVMF.fd -smp 3 -nic 
user,model=virtio-net-pci,hostfwd=tcp::2224-:22 -enable-kvm

After changing the resolution of the console, it does not continue the 
boot process.

> 
> The OS config you provided is truncated, so we can’t test it :-), but if
> you provide the full thing we can give it a try.


Somehow I missed the last closing braces.

I used
    guix 73b5c95
      Repository-URL: https://git.savannah.gnu.org/git/guix.git
      Branch: master
      Commit: 73b5c955ae46af2548625fe31afe60193fb83e2a

to run
$ guix system image -t qcow2 min.swap.scm
/gnu/store/dk1cc2q05zcw6rbc8l8vm7d6zb9rw771-image.qcow2


Martin


[-- Attachment #2: min.swap.scm --]
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;; This is an operating system configuration generated
;; by the graphical installer.

(use-modules (gnu))
(use-service-modules desktop networking ssh xorg)

(operating-system
  (locale "de_DE.utf8")
  (timezone "Europe/Berlin")
  (keyboard-layout (keyboard-layout "de" "neo"))
  (host-name "minswap")
  (issue "minimal system with swap, without swap dependencies")
  (users (cons* (user-account
                  (name "mcd")
                  (comment "Martin")
                  (group "users")
                  (home-directory "/home/mcd")
                  (supplementary-groups
                    '("wheel" "netdev" "audio" "video")))
                %base-user-accounts))
  (packages
    (append
      (list (specification->package "nss-certs"))
      %base-packages))
  (services
    (append
      (list (service dhcp-client-service-type)
            (service openssh-service-type)
            )
      %base-services))
  (bootloader
    (bootloader-configuration
      (bootloader grub-efi-bootloader)
      (target "/efi") ; deprecated
      (keyboard-layout keyboard-layout)))
  (mapped-devices
    (list (mapped-device
	    (source (uuid "e35658c9-6e31-431a-9397-2e988e32fe63"))
	    (target "lukspart")
	    (type luks-device-mapping))
	  (mapped-device
	    (source "lvmSystem")
	    (target "lvmSystem-volRoot")
	    (type lvm-device-mapping))))
  (file-systems
    (cons* (file-system
             (mount-point "/efi")
             (device (uuid "845E-533F" 'fat32))
             (type "vfat"))
           (file-system
             (mount-point "/")
             (device ; mapped device name: lvmSystem-volRoot, FS-label is guixsd-root
               (uuid "0584a348-341b-475d-b19f-93b5567ee02b"
                     'ext4))
             (type "ext4")
	     (needed-for-boot? #t)
	     (dependencies mapped-devices))
           %base-file-systems))
  (swap-devices
    (list
      (swap-space
	(target "/swapfile"))))
  (kernel-arguments
    (cons* "resume=/swapfile"
	   %default-kernel-arguments)))