----- Forwarded message from Curtis Shimamoto <sugar.and.scruffy@gmail.com> -----

Date: Wed, 18 Sep 2013 18:50:16 -0700 From: Curtis Shimamoto <sugar.and.scruffy@gmail.com> To: "Discussion about the Arch User Repository (AUR)" <aur-general@archlinux.org> Subject: Re: [aur-general] systemd 207 and btrfs

On 09/18/13 at 08:31pm, Jameson wrote:

...

I upgraded to systemd 207 today, and upon reboot received several messages that say, "failed to open /dev/btrfs-control skipping device registration: No such file or directory." The btrfs problem faq suggests that running "mknod /dev/btrfs-control c 10 234" should fix me up. However, when I run this it says that it already exists. The only significant changes that I made were to upgrade systemd, and add the systemd hook to mkinicpio.conf. I tried booting from external media, and removing the systemd hook, but after re-running mkinitcpio I still get the same result. Does anyone have any suggestions for getting past this?

I will happily provide more information if you can tell me what would be helpful.

Thanks, =-Jameson

I think you probably meant to send this to [arch-general], not [aur-general]. So I am going to send this to both… we'll see where it goes.

Your btrfs filesystem must span more than one device, yes? I too was having this problem with a multidevice btrfs filesystem, but ran into it a while back since I use [testing].

I thought it must have been something I screwed up, so since data was in 'single' anyway (different size devices), I decided to just convert it to use just one disk. I had meant to debug it later, but forgot about it shortly thereafter, and didn't even remember to do that until I saw this email.

It was definitely the lack of /dev/btrfs-control that was causing the failure though, as I was getting that error message. I recall checking immediately after getting the message and seeing that /dev/btrfs-control was indeed there. So maybe this is some kind of a race condition?

This is just a shot in the dark, but what if you were to put the necessary modules for btrfs in mkinitcpio.conf's MODULES list to have it loaded explicitly and early?

-- Curtis Shimamoto sugar.and.scruffy [at] gmail.com

Whoops, forgot to CC arch-general like I said I would… ----- End forwarded message ----- -- Curtis Shimamoto sugar.and.scruffy [at] gmail.com