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Re: guixsd install questions
From: |
Divan Santana |
Subject: |
Re: guixsd install questions |
Date: |
Sun, 02 Jul 2017 06:53:01 +0200 |
Ludovic Courtès <address@hidden> writes:
> Divan Santana <address@hidden> skribis:
>
>> Ludovic Courtès <address@hidden> writes:
>
> [...]
>
>>> My guess is that you’d need to explicitly mark one of the mapped device
>>> as depending on the other; this cannot be guessed.
>>>
>>> If you run “guix system shepherd-graph” on your config you’ll probably
>>> see that there’s no such dependency.
>>>
>>> Currently dependencies among mapped devices cannot be expressed, but
>>> that’s easy to fix (by providing a ‘dependencies’ field as in
>>> ‘file-system’.)
>>
>> So I've tried altering the code and asked on IRC a while back too. I
>> tried some of the suggestions that were given but none of them worked.
>>
>> Would you be able to "spell out" for someone clueless what the code
>> should look like to express the dependencies.
>>
>> Currently the code looks like this
>>
>> (bootloader (grub-configuration (device "/dev/vdb")))
>> (mapped-devices (list
>> (mapped-device
>> (source (list "/dev/vdb1" "/dev/vdc1"))
>> (target "/dev/md0")
>> (type raid-device-mapping))
>> (mapped-device
>> (source (uuid "1c0f1601-97f4-4a3d-9528-cd76130ff919"))
>> (target "crypt")
>> (type luks-device-mapping))))
>> (file-systems (cons (file-system
>> (device "/dev/mapper/crypt")
>> (title 'device)
>> (mount-point "/")
>> (type "ext4"))
>> %base-file-systems))
>
> You can have your file system depend on the two mapped devices like
> this:
>
> (file-systems (cons (file-system
> (device "/dev/mapper/crypt")
> (title 'device)
> (mount-point "/")
> (type "ext4")
> (dependencies mapped-devices))
> %base-file-systems))
>
> What *cannot* be expressed yet is dependencies among mapped devices.
> For that we need to extend the <mapped-device> record with a
> ‘dependencies’ field like <file-system> does.
Ah, I thought there was a workaround to get the combination of
mdadm+luks working.
Currently with your above suggestion it fails to boot post install at
grub with:
error: file `/gnu/store...-raw-initrd' not found.
> You’re welcome to start working on it if you feel like it (and I’d be
> happy to help!) and/or submit it to address@hidden
I wish. Maybe one day. My coding skills are MIA and time is very
limited. But I do hope to start contributing in some way in time
(besides my FSF financial support).
> I hope this is a bit clearer now!
Thanks. :-)