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Re: [alpine-user] How to setup BTRFS and LUKS

From: Marco Dickert <>
Date: Mon, 13 Aug 2018 13:58:15 +0200

On 2018-08-13 13:19:23, Tristan Kohl wrote:
> Most things work flawelessly (samba, docker, etc.) but I do not get how one
> would get a BTRFS pool on LUKS drives working.
> I think I have to dig into OpenRC and drop some service in "sysinit" to
> decrypt my drives before fstab kicks in (which as far as I can tell
> happens in devfs). I have my crypttab setup to work with a keyfile which
> resides in /root.
> What I need:
> 1. Mapping all LUKS drives to /dev/mapper/poolX (setup in /etc/crypttab)
> 2. Run btrfs device scan to detect my pool
> 3. Mount pool according to fstab

I don't quite understand your problem. Did you read this [1]? Do you use
software raid (mdadm) or lvm? Anyway, make sure all the necessary features are
enabled in /etc/mkinitfs/mkinitfs.conf and rebuild it like described on the
linked wiki page.

If that does not work, please describe your exact problem with the setup.


Marco Dickert

Received on Mon Aug 13 2018 - 13:58:15 UTC