From: Marius Bakke <mbakke@fastmail.com>
To: maze@strahlungsfrei.de, Fredrik Salomonsson <plattfot@gmail.com>
Cc: Help-Guix <help-guix-bounces+maze+guix=strahlungsfrei.de@gnu.org>,
help-guix@gnu.org
Subject: Re: btrfs and subvolumes for root
Date: Sat, 02 Sep 2017 13:34:25 +0200 [thread overview]
Message-ID: <871snpl4fy.fsf@fastmail.com> (raw)
In-Reply-To: <964cfe58f1b7e866fc2d4451d123e333@strahlungsfrei.de>
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maze@strahlungsfrei.de writes:
> Am 2017-08-06 05:46, schrieb Fredrik Salomonsson:
>> Hello Guix,
>>
>> I'm testing out setting up a dual boot between GuixSD and Arch. I've
>> no idea how much each one will take on disk. I decided to try out
>> btrfs and subvolumes for the layout.
>>
>> But I'm having some issues booting the thing.
>>
>> My disk layout right now is:
>> sda
>> sda1 1MB BIOS boot
>> sda2 4G swap
>> sda3 228.9GB btrfs
>>
>> then subvolumes:
>> sda3/
>> __current/guixsd-root
>> __current/arch-root
>> __current/boot
>> __current/home
>>
>> section from my config.scm, which is based on my old config (old one
>> is attached).
>>
>> (file-systems (cons* (file-system
>> (device "root")
>> (title 'label)
>> (mount-point "/boot")
>> (options
>> "defaults,discard,compress=lzo,space_cache,autodefrag,subvol=__current/boot")
>> (dependecies mapped-devices))
>> ;; repeat for guixsd-root and home but with correct value for subvol
>> )
>>
>> guix system init worked fine but when booting it fails to locate the
>> bzImage. Which I assume is because it doesn't know that the root is in
>> a subvolume.
>>
>> Long story short. How do I add rootflags to GuixSD's grub menu entry?
>> Need to add "rootflags=subvol=__current/guixsd-root" to the
>> linux-arguments. Might be an issue of having boot as a subvolume as
>> well.
>>
>> Thanks
>>
>> --
>>
>> s/Fred[re]+i[ck]+/Fredrik/g
>
> Hello Fredrik,
>
> I am having the same problem. Adjusting the kernel parameters for the
> GuixSD kernel seems currently not supported. Looking at the source code
> though it looks like this could be achieved via manipulating the
> "bootloader-configuration-menu-entries" list. (Still a scheme noob!)
Hello!
Adjusting kernel parameters can be done with 'kernel-arguments'.
Example:
(operating-system
[...]
(kernel-arguments '("modprobe.blacklist=pcspkr,snd_pcsp")))
HTH!
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next prev parent reply other threads:[~2017-09-02 11:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-06 3:46 btrfs and subvolumes for root Fredrik Salomonsson
2017-09-02 11:26 ` maze
2017-09-02 11:34 ` Marius Bakke [this message]
2017-09-06 4:13 ` Fredrik Salomonsson
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