* bug#34255: wishlist: Add guix-y way to create swapfile
@ 2019-01-30 7:48 swedebugia
2019-02-03 15:59 ` david.larsson
0 siblings, 1 reply; 2+ messages in thread
From: swedebugia @ 2019-01-30 7:48 UTC (permalink / raw)
To: 34255
Hi
I specified a swapfile in my config without creating it on disk manually.
(swap-devices '("/swapfile"))
Then I predictably got this error:
guix system: error: exception caught while executing 'start' on service
'swap-/swapfile':
In procedure swapon: "/swapfile": No such file or directory
I think we should let guix do all the dirty work of generating the
swapfile so we can do something like:
(swap-file
(file "/swapfile"))
(size "1G"))
And then guix will invoke the relevant file tools to create and enable
the swap file.
We could add a check to see if the file exist and if yes try to use it
as is.
--
Cheers
Swedebugia
^ permalink raw reply [flat|nested] 2+ messages in thread* bug#34255: wishlist: Add guix-y way to create swapfile
2019-01-30 7:48 bug#34255: wishlist: Add guix-y way to create swapfile swedebugia
@ 2019-02-03 15:59 ` david.larsson
0 siblings, 0 replies; 2+ messages in thread
From: david.larsson @ 2019-02-03 15:59 UTC (permalink / raw)
To: swedebugia; +Cc: 34255
> Hi
>
> I specified a swapfile in my config without creating it on disk manually.
>
> (swap-devices '("/swapfile"))
>
> Then I predictably got this error:
>
> guix system: error: exception caught while executing 'start' on service
> 'swap-/swapfile':
> In procedure swapon: "/swapfile": No such file or directory
>
> I think we should let guix do all the dirty work of generating the swapfile
> so we can do something like:
>
> (swap-file
> (file "/swapfile"))
> (size "1G"))
>
> And then guix will invoke the relevant file tools to create and enable the
> swap file.
>
> We could add a check to see if the file exist and if yes try to use it as is.
Hi,
I just want to give a little warning or tip regarding swapfiles on
btrfs. Generally you can't use swapfiles on btrfs - swapon will throw an
error and btrfs-balance will corrupt the filesystem but with a few
tricks swapfiles actually can be used on btrfs:
https://github.com/sebastian-philipp/btrfs-swapon
Best regards,
David L
^ permalink raw reply [flat|nested] 2+ messages in thread
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2019-01-30 7:48 bug#34255: wishlist: Add guix-y way to create swapfile swedebugia
2019-02-03 15:59 ` david.larsson
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