failed to open /dev/btrfs-control, skipping device registration: No such file or directory
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
btrfs-progs (Ubuntu) |
New
|
Undecided
|
Unassigned |
Bug Description
Description: Ubuntu 20.04.3 LTS
Release: 20.04
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btrfs-progs:
Installed: 5.4.1-2
Candidate: 5.4.1-2
Version table:
*** 5.4.1-2 500
500 http://
100 /var/lib/
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created partition on all disks with fdisk.
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sudo mkfs.btrfs -d single --csum blake2b -L bt01_01 /dev/sde1 /dev/sdf1 /dev/sdg1 /dev/sdh1 /dev/sdi1 /dev/sdj1 /dev/sdk1 /dev/sdl1
btrfs created volume
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/etc/mkinitcpio
--------------
reboot
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brtfs module not loaded/used by anything
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modprobe -r brtfs
brtfs device scan
Scanning for Btrfs filesystems
WARNING: failed to open /dev/btrfs-control, skipping device registration: No such file or directory
WARNING: failed to open /dev/btrfs-control, skipping device registration: No such file or directory
WARNING: failed to open /dev/btrfs-control, skipping device registration: No such file or directory
WARNING: failed to open /dev/btrfs-control, skipping device registration: No such file or directory
WARNING: failed to open /dev/btrfs-control, skipping device registration: No such file or directory
WARNING: failed to open /dev/btrfs-control, skipping device registration: No such file or directory
WARNING: failed to open /dev/btrfs-control, skipping device registration: No such file or directory
WARNING: failed to open /dev/btrfs-control, skipping device registration: No such file or directory
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lsblk -f
sde
└─sde1 btrfs bt01_01 c6b60114-
sdf
└─sdf1 btrfs bt01_01 c6b60114-
sdg
└─sdg1 btrfs bt01_01 c6b60114-
sdh
└─sdh1 btrfs bt01_01 c6b60114-
sdi
└─sdi1 btrfs bt01_01 c6b60114-
sdj
└─sdj1 btrfs bt01_01 c6b60114-
sdk
└─sdk1 btrfs bt01_01 c6b60114-
sdl
└─sdl1 btrfs bt01_01 c6b60114-
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kernel wiki
I get the message "failed to open /dev/btrfs-control skipping device registration" from "btrfs dev scan"
You are missing the /dev/btrfs-control device node. This is usually set up by udev. However, if you are not using udev, you will need to create it yourself:
# mknod /dev/btrfs-control c 10 234
/dev/btrfs-control already exists.
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no idea what is going on, it supposes to work from scratch. single device doesn't work either.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: btrfs-progs 5.4.1-2
ProcVersionSign
Uname: Linux 5.4.0-89-generic x86_64
ApportVersion: 2.20.11-
Architecture: amd64
CasperMD5CheckR
Date: Fri Nov 5 12:52:40 2021
InstallationDate: Installed on 2021-10-21 (14 days ago)
InstallationMedia: Ubuntu-Server 20.04.3 LTS "Focal Fossa" - Release amd64 (20210824)
ProcEnviron:
SHELL=/bin/bash
LANG=en_US.UTF-8
TERM=xterm-
XDG_RUNTIME_
PATH=(custom, no user)
SourcePackage: btrfs-progs
UpgradeStatus: No upgrade log present (probably fresh install)
> /etc/mkinitcpio .conf >> brtfs
Did you really add brtfs instead of btrfs?