Bug#747629: systemd: boot fails w/ multi-whole-disk btrfs /home: "timed out waiting for dev-sda.device"

Zack Weinberg zackw at panix.com
Sat May 10 15:18:16 BST 2014


Package: systemd
Version: 204-10
Severity: important

I have /home spread over two entire disks using btrfs (applied directly to
the physical disks; there is no intervening dm/LVM/whatever).  These disks
have no disklabels.  They are referred to in /etc/fstab by device name.

# grep ^/dev /etc/fstab | column -t
/dev/sdb1  /              ext4         noatime,errors=remount-ro  0  1
/dev/sdb2  none           swap         sw                         0  0
/dev/sda   /home          btrfs        subvol=/home               0  2
/dev/sr0   /media/cdrom0  udf,iso9660  user,noauto                0  0

systemd hangs the boot waiting for "dev-sda.device", eventually times out
and provides an emergency shell, from which I can observe that /dev/sda
exists and manually mounting /home succeeds.  I have been unable to figure
out what it was waiting for.

Here is some stuff that seems like it might be relevant.  All of these
commands were run under a system booted with sysvinit, because one can't
file a bug report from the emergency shell ;-/ but the only difference I
can recall from the output in the emergency shell is that "udevadm info"
had SYSTEMD_READY=0 in there when running under systemd.

# ls -l /dev/sd*
brw-rw---- 1 root disk 8,  0 May 10 09:56 /dev/sda
brw-rw---- 1 root disk 8, 16 May 10 09:56 /dev/sdb
brw-rw---- 1 root disk 8, 17 May 10 09:56 /dev/sdb1
brw-rw---- 1 root disk 8, 18 May 10 09:56 /dev/sdb2
brw-rw---- 1 root disk 8, 20 May 10 09:56 /dev/sdb4
brw-rw---- 1 root disk 8, 32 May 10 09:56 /dev/sdc
brw-rw---- 1 root disk 8, 48 May 10 09:56 /dev/sdd

# blkid
/dev/sdb2: UUID="1e04942e-c69b-4430-84f3-1622ef1afe75" TYPE="swap" 
/dev/sdb4: UUID="10C8D0B8C8D09D72" TYPE="ntfs" 
/dev/sdb1: UUID="eaf36848-eadc-4138-b2a9-db3d8ce82f34" TYPE="ext4" 
/dev/sdc: LABEL="store" UUID="ec93d2c2-7937-40f8-aaa6-c20c9775d93a" UUID_SUB="71e4e0ba-c475-4097-9219-4faf87b9b1d9" TYPE="btrfs" 
/dev/sda: LABEL="store" UUID="ec93d2c2-7937-40f8-aaa6-c20c9775d93a" UUID_SUB="5bda918b-2e06-45ae-9b96-03b2f2b0b338" TYPE="btrfs" 

# lsblk -f
NAME   FSTYPE LABEL MOUNTPOINT
sda    btrfs  store 
sdb                 
├─sdb1 ext4         /
├─sdb2 swap         [SWAP]
└─sdb4 ntfs         
sdc    btrfs  store 

# udevadm info -qall -p /sys/class/block/sda
P: /devices/pci0000:00/0000:00:1f.2/ata1/host0/target0:0:1/0:0:1:0/block/sda
N: sda
S: disk/by-id/ata-WDC_WD5000AAKX-00U6AA0_WD-WCC2ET237617
S: disk/by-id/wwn-0x50014ee2b28542c6
S: disk/by-label/store
S: disk/by-uuid/ec93d2c2-7937-40f8-aaa6-c20c9775d93a
E: DEVLINKS=/dev/disk/by-id/ata-WDC_WD5000AAKX-00U6AA0_WD-WCC2ET237617 /dev/disk/by-id/wwn-0x50014ee2b28542c6 /dev/disk/by-label/store /dev/disk/by-uuid/ec93d2c2-7937-40f8-aaa6-c20c9775d93a
E: DEVNAME=/dev/sda
E: DEVPATH=/devices/pci0000:00/0000:00:1f.2/ata1/host0/target0:0:1/0:0:1:0/block/sda
E: DEVTYPE=disk
E: ID_ATA=1
E: ID_ATA_DOWNLOAD_MICROCODE=1
E: ID_ATA_FEATURE_SET_HPA=1
E: ID_ATA_FEATURE_SET_HPA_ENABLED=1
E: ID_ATA_FEATURE_SET_PM=1
E: ID_ATA_FEATURE_SET_PM_ENABLED=1
E: ID_ATA_FEATURE_SET_PUIS=1
E: ID_ATA_FEATURE_SET_PUIS_ENABLED=0
E: ID_ATA_FEATURE_SET_SECURITY=1
E: ID_ATA_FEATURE_SET_SECURITY_ENABLED=0
E: ID_ATA_FEATURE_SET_SECURITY_ENHANCED_ERASE_UNIT_MIN=86
E: ID_ATA_FEATURE_SET_SECURITY_ERASE_UNIT_MIN=86
E: ID_ATA_FEATURE_SET_SECURITY_FROZEN=1
E: ID_ATA_FEATURE_SET_SMART=1
E: ID_ATA_FEATURE_SET_SMART_ENABLED=1
E: ID_ATA_SATA=1
E: ID_ATA_SATA_SIGNAL_RATE_GEN1=1
E: ID_ATA_SATA_SIGNAL_RATE_GEN2=1
E: ID_ATA_WRITE_CACHE=1
E: ID_ATA_WRITE_CACHE_ENABLED=1
E: ID_BTRFS_READY=1
E: ID_BUS=ata
E: ID_FS_LABEL=store
E: ID_FS_LABEL_ENC=store
E: ID_FS_TYPE=btrfs
E: ID_FS_USAGE=filesystem
E: ID_FS_UUID=ec93d2c2-7937-40f8-aaa6-c20c9775d93a
E: ID_FS_UUID_ENC=ec93d2c2-7937-40f8-aaa6-c20c9775d93a
E: ID_FS_UUID_SUB=5bda918b-2e06-45ae-9b96-03b2f2b0b338
E: ID_FS_UUID_SUB_ENC=5bda918b-2e06-45ae-9b96-03b2f2b0b338
E: ID_MODEL=WDC_WD5000AAKX-00U6AA0
E: ID_MODEL_ENC=WDC\x20WD5000AAKX-00U6AA0\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20
E: ID_REVISION=15.01H15
E: ID_SERIAL=WDC_WD5000AAKX-00U6AA0_WD-WCC2ET237617
E: ID_SERIAL_SHORT=WD-WCC2ET237617
E: ID_TYPE=disk
E: ID_WWN=0x50014ee2b28542c6
E: ID_WWN_WITH_EXTENSION=0x50014ee2b28542c6
E: MAJOR=8
E: MINOR=0
E: SUBSYSTEM=block
E: USEC_INITIALIZED=66534

-- Package-specific info:

-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (501, 'unstable'), (500, 'testing'), (101, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.14-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages systemd depends on:
ii  acl                  2.2.52-1
ii  adduser              3.113+nmu3
ii  initscripts          2.88dsf-53
ii  libacl1              2.2.52-1
ii  libaudit1            1:2.3.6-1
ii  libc6                2.18-5
ii  libcap2              1:2.22-1.2
ii  libcap2-bin          1:2.22-1.2
ii  libcryptsetup4       2:1.6.4-4
ii  libdbus-1-3          1.8.2-1
ii  libgcrypt11          1.5.3-4
ii  libkmod2             17-2
ii  liblzma5             5.1.1alpha+20120614-2
ii  libpam0g             1.1.8-3
ii  libselinux1          2.2.2-2
ii  libsystemd-daemon0   204-10
ii  libsystemd-journal0  204-10
ii  libsystemd-login0    204-10
ii  libudev1             204-10
ii  libwrap0             7.6.q-25
ii  sysv-rc              2.88dsf-53
ii  udev                 204-10
ii  util-linux           2.20.1-5.7

Versions of packages systemd recommends:
ii  libpam-systemd  204-10

Versions of packages systemd suggests:
pn  systemd-ui  <none>

-- no debconf information
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0 overridden configuration files found.
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==> /var/lib/systemd/deb-systemd-helper-enabled/lvm2-lvmetad.socket.dsh-also <==
/etc/systemd/system/sockets.target.wants/lvm2-lvmetad.socket

==> /var/lib/systemd/deb-systemd-helper-enabled/cups.socket.dsh-also <==
/etc/systemd/system/sockets.target.wants/cups.socket

==> /var/lib/systemd/deb-systemd-helper-enabled/multi-user.target.wants/cups-browsed.service <==

==> /var/lib/systemd/deb-systemd-helper-enabled/multi-user.target.wants/binfmt-support.service <==

==> /var/lib/systemd/deb-systemd-helper-enabled/multi-user.target.wants/cups.path <==

==> /var/lib/systemd/deb-systemd-helper-enabled/multi-user.target.wants/libvirt-guests.service <==

==> /var/lib/systemd/deb-systemd-helper-enabled/multi-user.target.wants/libvirt-bin.service <==

==> /var/lib/systemd/deb-systemd-helper-enabled/multi-user.target.wants/avahi-daemon.service <==

==> /var/lib/systemd/deb-systemd-helper-enabled/multi-user.target.wants/virtlockd.socket <==

==> /var/lib/systemd/deb-systemd-helper-enabled/multi-user.target.wants/NetworkManager.service <==

==> /var/lib/systemd/deb-systemd-helper-enabled/multi-user.target.wants/rsyslog.service <==

==> /var/lib/systemd/deb-systemd-helper-enabled/multi-user.target.wants/ssh.service <==

==> /var/lib/systemd/deb-systemd-helper-enabled/multi-user.target.wants/atd.service <==

==> /var/lib/systemd/deb-systemd-helper-enabled/bluetooth.target.wants/bluetooth.service <==

==> /var/lib/systemd/deb-systemd-helper-enabled/rsyslog.service.dsh-also <==
/etc/systemd/system/multi-user.target.wants/rsyslog.service
/etc/systemd/system/syslog.service
/etc/systemd/system/multi-user.target.wants/rsyslog.service
/etc/systemd/system/syslog.service
/etc/systemd/system/multi-user.target.wants/rsyslog.service
/etc/systemd/system/syslog.service

==> /var/lib/systemd/deb-systemd-helper-enabled/binfmt-support.service.dsh-also <==
/etc/systemd/system/multi-user.target.wants/binfmt-support.service

==> /var/lib/systemd/deb-systemd-helper-enabled/NetworkManager-wait-online.service.dsh-also <==
/etc/systemd/system/multi-user.target.wants/NetworkManager-wait-online.service

==> /var/lib/systemd/deb-systemd-helper-enabled/cups.path.dsh-also <==
/etc/systemd/system/multi-user.target.wants/cups.path

==> /var/lib/systemd/deb-systemd-helper-enabled/graphical.target.wants/accounts-daemon.service <==

==> /var/lib/systemd/deb-systemd-helper-enabled/printer.target.wants/cups.service <==

==> /var/lib/systemd/deb-systemd-helper-enabled/NetworkManager-dispatcher.service.dsh-also <==
/etc/systemd/system/dbus-org.freedesktop.nm-dispatcher.service

==> /var/lib/systemd/deb-systemd-helper-enabled/atd.service.dsh-also <==
/etc/systemd/system/multi-user.target.wants/atd.service

==> /var/lib/systemd/deb-systemd-helper-enabled/NetworkManager.service.dsh-also <==
/etc/systemd/system/multi-user.target.wants/NetworkManager.service
/etc/systemd/system/dbus-org.freedesktop.NetworkManager.service
/etc/systemd/system/dbus-org.freedesktop.nm-dispatcher.service

==> /var/lib/systemd/deb-systemd-helper-enabled/libvirt-bin.service.dsh-also <==
/etc/systemd/system/multi-user.target.wants/libvirt-bin.service
/etc/systemd/system/multi-user.target.wants/libvirt-bin.service
/etc/systemd/system/multi-user.target.wants/libvirt-bin.service

==> /var/lib/systemd/deb-systemd-helper-enabled/sockets.target.wants/virtlockd.socket <==

==> /var/lib/systemd/deb-systemd-helper-enabled/sockets.target.wants/lvm2-lvmetad.socket <==

==> /var/lib/systemd/deb-systemd-helper-enabled/sockets.target.wants/cups.socket <==

==> /var/lib/systemd/deb-systemd-helper-enabled/sockets.target.wants/avahi-daemon.socket <==

==> /var/lib/systemd/deb-systemd-helper-enabled/local-fs.target.wants/lvm2-activation-early.service <==

==> /var/lib/systemd/deb-systemd-helper-enabled/local-fs.target.wants/lvm2-activation.service <==

==> /var/lib/systemd/deb-systemd-helper-enabled/syslog.service <==

==> /var/lib/systemd/deb-systemd-helper-enabled/dbus-org.freedesktop.NetworkManager.service <==

==> /var/lib/systemd/deb-systemd-helper-enabled/dbus-org.freedesktop.Avahi.service <==

==> /var/lib/systemd/deb-systemd-helper-enabled/lvm2-activation-early.service.dsh-also <==
/etc/systemd/system/local-fs.target.wants/lvm2-activation-early.service

==> /var/lib/systemd/deb-systemd-helper-enabled/cups.service.dsh-also <==
/etc/systemd/system/sockets.target.wants/cups.socket
/etc/systemd/system/multi-user.target.wants/cups.path
/etc/systemd/system/printer.target.wants/cups.service

==> /var/lib/systemd/deb-systemd-helper-enabled/dbus-org.freedesktop.nm-dispatcher.service <==

==> /var/lib/systemd/deb-systemd-helper-enabled/bluetooth.service.dsh-also <==
/etc/systemd/system/bluetooth.target.wants/bluetooth.service
/etc/systemd/system/dbus-org.bluez.service

==> /var/lib/systemd/deb-systemd-helper-enabled/accounts-daemon.service.dsh-also <==
/etc/systemd/system/graphical.target.wants/accounts-daemon.service

==> /var/lib/systemd/deb-systemd-helper-enabled/lvm2-activation.service.dsh-also <==
/etc/systemd/system/local-fs.target.wants/lvm2-activation.service

==> /var/lib/systemd/deb-systemd-helper-enabled/cups-browsed.service.dsh-also <==
/etc/systemd/system/multi-user.target.wants/cups-browsed.service

==> /var/lib/systemd/deb-systemd-helper-enabled/virtlockd.socket.dsh-also <==
/etc/systemd/system/multi-user.target.wants/virtlockd.socket
/etc/systemd/system/multi-user.target.wants/virtlockd.socket
/etc/systemd/system/multi-user.target.wants/virtlockd.socket
/etc/systemd/system/sockets.target.wants/virtlockd.socket

==> /var/lib/systemd/deb-systemd-helper-enabled/sshd.service <==

==> /var/lib/systemd/deb-systemd-helper-enabled/ssh.socket.dsh-also <==
/etc/systemd/system/sockets.target.wants/ssh.socket

==> /var/lib/systemd/deb-systemd-helper-enabled/dbus-org.bluez.service <==

==> /var/lib/systemd/deb-systemd-helper-enabled/libvirt-guests.service.dsh-also <==
/etc/systemd/system/multi-user.target.wants/libvirt-guests.service
/etc/systemd/system/multi-user.target.wants/libvirt-guests.service
/etc/systemd/system/multi-user.target.wants/libvirt-guests.service

==> /var/lib/systemd/deb-systemd-helper-enabled/avahi-daemon.service.dsh-also <==
/etc/systemd/system/multi-user.target.wants/avahi-daemon.service
/etc/systemd/system/sockets.target.wants/avahi-daemon.socket
/etc/systemd/system/dbus-org.freedesktop.Avahi.service

==> /var/lib/systemd/deb-systemd-helper-enabled/avahi-daemon.socket.dsh-also <==
/etc/systemd/system/sockets.target.wants/avahi-daemon.socket

==> /var/lib/systemd/deb-systemd-helper-enabled/ssh.service.dsh-also <==
/etc/systemd/system/multi-user.target.wants/ssh.service
/etc/systemd/system/sshd.service

==> /var/lib/systemd/deb-systemd-helper-enabled/virtlockd.service.dsh-also <==
/etc/systemd/system/sockets.target.wants/virtlockd.socket
-------------- next part --------------
# /etc/fstab: static file system information.
#
# Use 'vol_id --uuid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system>    <mount point>       <type>      <options>          <dump>  <pass>
/dev/sdb1          /                   ext4        noatime,errors=remount-ro  0       1
/dev/sdb2          none                swap        sw                 0       0
/dev/sda           /home               btrfs       subvol=/home       0       2
proc               /proc               proc        defaults           0       0
/dev/sr0          /media/cdrom0       udf,iso9660 user,noauto        0       0
//heathwill/media  /media/heathwill-m  cifs        user,noauto,username=media,guest,sec=ntlm,ip=10.0.0.2  0  0
//heathwill/backup  /media/heathwill-b  cifs        user,noauto,username=backup,guest,sec=ntlm,ip=10.0.0.2  0  0


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