btrfs with multiple subvolumes in one partition

Christoph Pleger Christoph.Pleger at cs.tu-dortmund.de
Tue Dec 6 15:48:29 CET 2022


Hello,

> > > > > 
>     > when setting up btrfs with setup-storage, is it possible to
> configure
>     > multiple subvolumes in one partition, like I tried to configure
> with
> 
>     > disk_config btrfs fstabkey:uuid
>     > btrfs single / disk1.3 subvol=@root
>     > btrfs single /var disk1.3 subvol=@root/var
>     > btrfs single /usr disk1.3 subvol=@root/usr
> I think this is related to https://bugs.debian.org/964761
> The output of format.log would help for the bug report.

I guess that you mean the debug output of setup-storage. I attached
that.

The log in short: It is a really a race condition; setup-storage tries
to create @root/usr before @root exists. And like described in the
link, sometimes the order is correct.

Regards
  Christoph
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