[Kernel-packages] [Bug 1651435] Re: BTRFS error: could not find root 8
Hi According to this it is nothing to worry about. systemd is probing and if quota disabled as it is by default, this will show. https://www.mail-archive.com/search?l=linux- bt...@vger.kernel.org&q=subject:%22Re%5C%3A+BTRFS%5C%3A+could+not+find+root+8%22&o=newest&f=1 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1651435 Title: BTRFS error: could not find root 8 Status in linux package in Ubuntu: Confirmed Bug description: I have a KVM guest system which was running for some time now (142 days uptime). Today, I logged in for the first time since months, and got an error message in syslog (and console): kernel: BTRFS error (device vda2): could not find root 8 The error happened together with my login (in respect to the date of the log entry). The system was running with kernel 4.4.0-31-generic when the problem occured. When googling around, I found some similar results, but nowhere is mentioned that this got fixed somehow. So far, I could not find anything harmful (I did not reboot yet, however). I updated the kernel now, eventually that helps. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-31-generic 4.4.0-31.50 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic x86_64 AlsaDevices: total 0 crw-rw+ 1 root audio 116, 1 Dec 20 13:00 seq crw-rw+ 1 root audio 116, 33 Dec 20 13:00 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Dec 20 13:40:44 2016 HibernationDevice: RESUME=UUID=419693f3-cd92-4870-a16a-7bede16d9b8a InstallationDate: Installed on 2016-06-20 (182 days ago) InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.3) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: QEMU Standard PC (i440FX + PIIX, 1996) PciMultimedia: ProcEnviron: TERM=linux PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 cirrusdrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.4.0-31-generic root=UUID=ebfbbec2-f4df-4e40-92a5-3db6b57eb8f5 ro rootflags=subvol=@ RelatedPackageVersions: linux-restricted-modules-4.4.0-31-generic N/A linux-backports-modules-4.4.0-31-generic N/A linux-firmware1.157.6 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/01/2014 dmi.bios.vendor: SeaBIOS dmi.bios.version: 1.7.5-20140531_083030-gandalf dmi.chassis.type: 1 dmi.chassis.vendor: QEMU dmi.chassis.version: pc-i440fx-2.1 dmi.modalias: dmi:bvnSeaBIOS:bvr1.7.5-20140531_083030-gandalf:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.1:cvnQEMU:ct1:cvrpc-i440fx-2.1: dmi.product.name: Standard PC (i440FX + PIIX, 1996) dmi.product.version: pc-i440fx-2.1 dmi.sys.vendor: QEMU --- AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.4.0-57-generic. AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', '/dev/snd/by-path', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory Card0.Amixer.values: Error: [Errno 2] No such file or directory DistroRelease: Ubuntu 16.04 InstallationDate: Installed on 2013-08-21 (1229 days ago) InstallationMedia: Ubuntu-Server 13.04 "Raring Ringtail" - Release amd64 (20130423.1) IwConfig: em1 no wireless extensions. lono wireless extensions. Lsusb: Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Package: linux (not installed) ProcEnviron: TERM=screen.xterm-256color PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-57-generic root=UUID=16120d81-8cde-4e81-87cd-f55f65a4923b ro rootflags=subvol=@ pcie_aspm=force "acpi_osi=!Windows 2012" acp
[Kernel-packages] [Bug 1651435] Re: BTRFS error: could not find root 8
OS: Ubuntu 16.04.2 LTS / Disks: btrfs mirror on 2 ssd partitions - /dev/sda4 /dev/sdb4 dmesg shows error every 15 mins May 7 15:02:22 blade3 kernel: [ 9174.648066] BTRFS error (device sdb4): could not find root 8 ... May 7 21:18:43 blade3 kernel: [31756.490619] BTRFS error (device sdb4): could not find root 8 This error disappeared after enabling quota (just like Sly_tom_cat mentioned). -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1651435 Title: BTRFS error: could not find root 8 Status in linux package in Ubuntu: Confirmed Bug description: I have a KVM guest system which was running for some time now (142 days uptime). Today, I logged in for the first time since months, and got an error message in syslog (and console): kernel: BTRFS error (device vda2): could not find root 8 The error happened together with my login (in respect to the date of the log entry). The system was running with kernel 4.4.0-31-generic when the problem occured. When googling around, I found some similar results, but nowhere is mentioned that this got fixed somehow. So far, I could not find anything harmful (I did not reboot yet, however). I updated the kernel now, eventually that helps. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-31-generic 4.4.0-31.50 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic x86_64 AlsaDevices: total 0 crw-rw+ 1 root audio 116, 1 Dec 20 13:00 seq crw-rw+ 1 root audio 116, 33 Dec 20 13:00 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Dec 20 13:40:44 2016 HibernationDevice: RESUME=UUID=419693f3-cd92-4870-a16a-7bede16d9b8a InstallationDate: Installed on 2016-06-20 (182 days ago) InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.3) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: QEMU Standard PC (i440FX + PIIX, 1996) PciMultimedia: ProcEnviron: TERM=linux PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 cirrusdrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.4.0-31-generic root=UUID=ebfbbec2-f4df-4e40-92a5-3db6b57eb8f5 ro rootflags=subvol=@ RelatedPackageVersions: linux-restricted-modules-4.4.0-31-generic N/A linux-backports-modules-4.4.0-31-generic N/A linux-firmware1.157.6 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/01/2014 dmi.bios.vendor: SeaBIOS dmi.bios.version: 1.7.5-20140531_083030-gandalf dmi.chassis.type: 1 dmi.chassis.vendor: QEMU dmi.chassis.version: pc-i440fx-2.1 dmi.modalias: dmi:bvnSeaBIOS:bvr1.7.5-20140531_083030-gandalf:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.1:cvnQEMU:ct1:cvrpc-i440fx-2.1: dmi.product.name: Standard PC (i440FX + PIIX, 1996) dmi.product.version: pc-i440fx-2.1 dmi.sys.vendor: QEMU --- AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.4.0-57-generic. AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', '/dev/snd/by-path', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory Card0.Amixer.values: Error: [Errno 2] No such file or directory DistroRelease: Ubuntu 16.04 InstallationDate: Installed on 2013-08-21 (1229 days ago) InstallationMedia: Ubuntu-Server 13.04 "Raring Ringtail" - Release amd64 (20130423.1) IwConfig: em1 no wireless extensions. lono wireless extensions. Lsusb: Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Package: linux (not installed) ProcEnviron: TERM=screen.xterm-256color PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.
[Kernel-packages] [Bug 1651435] Re: BTRFS error: could not find root 8
... it disappears when quota enabled on btrfs -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1651435 Title: BTRFS error: could not find root 8 Status in linux package in Ubuntu: Confirmed Bug description: I have a KVM guest system which was running for some time now (142 days uptime). Today, I logged in for the first time since months, and got an error message in syslog (and console): kernel: BTRFS error (device vda2): could not find root 8 The error happened together with my login (in respect to the date of the log entry). The system was running with kernel 4.4.0-31-generic when the problem occured. When googling around, I found some similar results, but nowhere is mentioned that this got fixed somehow. So far, I could not find anything harmful (I did not reboot yet, however). I updated the kernel now, eventually that helps. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-31-generic 4.4.0-31.50 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic x86_64 AlsaDevices: total 0 crw-rw+ 1 root audio 116, 1 Dec 20 13:00 seq crw-rw+ 1 root audio 116, 33 Dec 20 13:00 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Dec 20 13:40:44 2016 HibernationDevice: RESUME=UUID=419693f3-cd92-4870-a16a-7bede16d9b8a InstallationDate: Installed on 2016-06-20 (182 days ago) InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.3) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: QEMU Standard PC (i440FX + PIIX, 1996) PciMultimedia: ProcEnviron: TERM=linux PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 cirrusdrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.4.0-31-generic root=UUID=ebfbbec2-f4df-4e40-92a5-3db6b57eb8f5 ro rootflags=subvol=@ RelatedPackageVersions: linux-restricted-modules-4.4.0-31-generic N/A linux-backports-modules-4.4.0-31-generic N/A linux-firmware1.157.6 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/01/2014 dmi.bios.vendor: SeaBIOS dmi.bios.version: 1.7.5-20140531_083030-gandalf dmi.chassis.type: 1 dmi.chassis.vendor: QEMU dmi.chassis.version: pc-i440fx-2.1 dmi.modalias: dmi:bvnSeaBIOS:bvr1.7.5-20140531_083030-gandalf:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.1:cvnQEMU:ct1:cvrpc-i440fx-2.1: dmi.product.name: Standard PC (i440FX + PIIX, 1996) dmi.product.version: pc-i440fx-2.1 dmi.sys.vendor: QEMU --- AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.4.0-57-generic. AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', '/dev/snd/by-path', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory Card0.Amixer.values: Error: [Errno 2] No such file or directory DistroRelease: Ubuntu 16.04 InstallationDate: Installed on 2013-08-21 (1229 days ago) InstallationMedia: Ubuntu-Server 13.04 "Raring Ringtail" - Release amd64 (20130423.1) IwConfig: em1 no wireless extensions. lono wireless extensions. Lsusb: Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Package: linux (not installed) ProcEnviron: TERM=screen.xterm-256color PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-57-generic root=UUID=16120d81-8cde-4e81-87cd-f55f65a4923b ro rootflags=subvol=@ pcie_aspm=force "acpi_osi=!Windows 2012" acpi=force acpi_enforce_resources=lax i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 i915.lvds_downclock=1 i915.semaphores=1 ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35 RelatedPackageVersions: linux-restrict
[Kernel-packages] [Bug 1651435] Re: BTRFS error: could not find root 8
The same issue on Ubuntu 16.04.2 with BTRFS on single SHDD disk. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1651435 Title: BTRFS error: could not find root 8 Status in linux package in Ubuntu: Confirmed Bug description: I have a KVM guest system which was running for some time now (142 days uptime). Today, I logged in for the first time since months, and got an error message in syslog (and console): kernel: BTRFS error (device vda2): could not find root 8 The error happened together with my login (in respect to the date of the log entry). The system was running with kernel 4.4.0-31-generic when the problem occured. When googling around, I found some similar results, but nowhere is mentioned that this got fixed somehow. So far, I could not find anything harmful (I did not reboot yet, however). I updated the kernel now, eventually that helps. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-31-generic 4.4.0-31.50 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic x86_64 AlsaDevices: total 0 crw-rw+ 1 root audio 116, 1 Dec 20 13:00 seq crw-rw+ 1 root audio 116, 33 Dec 20 13:00 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Dec 20 13:40:44 2016 HibernationDevice: RESUME=UUID=419693f3-cd92-4870-a16a-7bede16d9b8a InstallationDate: Installed on 2016-06-20 (182 days ago) InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.3) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: QEMU Standard PC (i440FX + PIIX, 1996) PciMultimedia: ProcEnviron: TERM=linux PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 cirrusdrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.4.0-31-generic root=UUID=ebfbbec2-f4df-4e40-92a5-3db6b57eb8f5 ro rootflags=subvol=@ RelatedPackageVersions: linux-restricted-modules-4.4.0-31-generic N/A linux-backports-modules-4.4.0-31-generic N/A linux-firmware1.157.6 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/01/2014 dmi.bios.vendor: SeaBIOS dmi.bios.version: 1.7.5-20140531_083030-gandalf dmi.chassis.type: 1 dmi.chassis.vendor: QEMU dmi.chassis.version: pc-i440fx-2.1 dmi.modalias: dmi:bvnSeaBIOS:bvr1.7.5-20140531_083030-gandalf:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.1:cvnQEMU:ct1:cvrpc-i440fx-2.1: dmi.product.name: Standard PC (i440FX + PIIX, 1996) dmi.product.version: pc-i440fx-2.1 dmi.sys.vendor: QEMU --- AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.4.0-57-generic. AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', '/dev/snd/by-path', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory Card0.Amixer.values: Error: [Errno 2] No such file or directory DistroRelease: Ubuntu 16.04 InstallationDate: Installed on 2013-08-21 (1229 days ago) InstallationMedia: Ubuntu-Server 13.04 "Raring Ringtail" - Release amd64 (20130423.1) IwConfig: em1 no wireless extensions. lono wireless extensions. Lsusb: Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Package: linux (not installed) ProcEnviron: TERM=screen.xterm-256color PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-57-generic root=UUID=16120d81-8cde-4e81-87cd-f55f65a4923b ro rootflags=subvol=@ pcie_aspm=force "acpi_osi=!Windows 2012" acpi=force acpi_enforce_resources=lax i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 i915.lvds_downclock=1 i915.semaphores=1 ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35 RelatedPackageVersions
[Kernel-packages] [Bug 1651435] Re: BTRFS error: could not find root 8
Same problem here on Ubuntu 16.04 with BTRFS RAID-1 on LUKS partitions -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1651435 Title: BTRFS error: could not find root 8 Status in linux package in Ubuntu: Confirmed Bug description: I have a KVM guest system which was running for some time now (142 days uptime). Today, I logged in for the first time since months, and got an error message in syslog (and console): kernel: BTRFS error (device vda2): could not find root 8 The error happened together with my login (in respect to the date of the log entry). The system was running with kernel 4.4.0-31-generic when the problem occured. When googling around, I found some similar results, but nowhere is mentioned that this got fixed somehow. So far, I could not find anything harmful (I did not reboot yet, however). I updated the kernel now, eventually that helps. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-31-generic 4.4.0-31.50 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic x86_64 AlsaDevices: total 0 crw-rw+ 1 root audio 116, 1 Dec 20 13:00 seq crw-rw+ 1 root audio 116, 33 Dec 20 13:00 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Dec 20 13:40:44 2016 HibernationDevice: RESUME=UUID=419693f3-cd92-4870-a16a-7bede16d9b8a InstallationDate: Installed on 2016-06-20 (182 days ago) InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.3) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: QEMU Standard PC (i440FX + PIIX, 1996) PciMultimedia: ProcEnviron: TERM=linux PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 cirrusdrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.4.0-31-generic root=UUID=ebfbbec2-f4df-4e40-92a5-3db6b57eb8f5 ro rootflags=subvol=@ RelatedPackageVersions: linux-restricted-modules-4.4.0-31-generic N/A linux-backports-modules-4.4.0-31-generic N/A linux-firmware1.157.6 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/01/2014 dmi.bios.vendor: SeaBIOS dmi.bios.version: 1.7.5-20140531_083030-gandalf dmi.chassis.type: 1 dmi.chassis.vendor: QEMU dmi.chassis.version: pc-i440fx-2.1 dmi.modalias: dmi:bvnSeaBIOS:bvr1.7.5-20140531_083030-gandalf:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.1:cvnQEMU:ct1:cvrpc-i440fx-2.1: dmi.product.name: Standard PC (i440FX + PIIX, 1996) dmi.product.version: pc-i440fx-2.1 dmi.sys.vendor: QEMU --- AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.4.0-57-generic. AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', '/dev/snd/by-path', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory Card0.Amixer.values: Error: [Errno 2] No such file or directory DistroRelease: Ubuntu 16.04 InstallationDate: Installed on 2013-08-21 (1229 days ago) InstallationMedia: Ubuntu-Server 13.04 "Raring Ringtail" - Release amd64 (20130423.1) IwConfig: em1 no wireless extensions. lono wireless extensions. Lsusb: Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Package: linux (not installed) ProcEnviron: TERM=screen.xterm-256color PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-57-generic root=UUID=16120d81-8cde-4e81-87cd-f55f65a4923b ro rootflags=subvol=@ pcie_aspm=force "acpi_osi=!Windows 2012" acpi=force acpi_enforce_resources=lax i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 i915.lvds_downclock=1 i915.semaphores=1 ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35 RelatedPackageVe
[Kernel-packages] [Bug 1651435] Re: BTRFS error: could not find root 8
Same problem here, with Ubuntu 16.04 + BTRFS on a software Raid1 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1651435 Title: BTRFS error: could not find root 8 Status in linux package in Ubuntu: Confirmed Bug description: I have a KVM guest system which was running for some time now (142 days uptime). Today, I logged in for the first time since months, and got an error message in syslog (and console): kernel: BTRFS error (device vda2): could not find root 8 The error happened together with my login (in respect to the date of the log entry). The system was running with kernel 4.4.0-31-generic when the problem occured. When googling around, I found some similar results, but nowhere is mentioned that this got fixed somehow. So far, I could not find anything harmful (I did not reboot yet, however). I updated the kernel now, eventually that helps. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-31-generic 4.4.0-31.50 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic x86_64 AlsaDevices: total 0 crw-rw+ 1 root audio 116, 1 Dec 20 13:00 seq crw-rw+ 1 root audio 116, 33 Dec 20 13:00 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Dec 20 13:40:44 2016 HibernationDevice: RESUME=UUID=419693f3-cd92-4870-a16a-7bede16d9b8a InstallationDate: Installed on 2016-06-20 (182 days ago) InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.3) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: QEMU Standard PC (i440FX + PIIX, 1996) PciMultimedia: ProcEnviron: TERM=linux PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 cirrusdrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.4.0-31-generic root=UUID=ebfbbec2-f4df-4e40-92a5-3db6b57eb8f5 ro rootflags=subvol=@ RelatedPackageVersions: linux-restricted-modules-4.4.0-31-generic N/A linux-backports-modules-4.4.0-31-generic N/A linux-firmware1.157.6 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/01/2014 dmi.bios.vendor: SeaBIOS dmi.bios.version: 1.7.5-20140531_083030-gandalf dmi.chassis.type: 1 dmi.chassis.vendor: QEMU dmi.chassis.version: pc-i440fx-2.1 dmi.modalias: dmi:bvnSeaBIOS:bvr1.7.5-20140531_083030-gandalf:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.1:cvnQEMU:ct1:cvrpc-i440fx-2.1: dmi.product.name: Standard PC (i440FX + PIIX, 1996) dmi.product.version: pc-i440fx-2.1 dmi.sys.vendor: QEMU --- AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.4.0-57-generic. AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', '/dev/snd/by-path', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory Card0.Amixer.values: Error: [Errno 2] No such file or directory DistroRelease: Ubuntu 16.04 InstallationDate: Installed on 2013-08-21 (1229 days ago) InstallationMedia: Ubuntu-Server 13.04 "Raring Ringtail" - Release amd64 (20130423.1) IwConfig: em1 no wireless extensions. lono wireless extensions. Lsusb: Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Package: linux (not installed) ProcEnviron: TERM=screen.xterm-256color PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-57-generic root=UUID=16120d81-8cde-4e81-87cd-f55f65a4923b ro rootflags=subvol=@ pcie_aspm=force "acpi_osi=!Windows 2012" acpi=force acpi_enforce_resources=lax i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 i915.lvds_downclock=1 i915.semaphores=1 ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35 RelatedPackageVersions
[Kernel-packages] [Bug 1651435] Re: BTRFS error: could not find root 8
The same problem in Ubuntu 16.04, with BTRFS Raid-1 on LUKS. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1651435 Title: BTRFS error: could not find root 8 Status in linux package in Ubuntu: Confirmed Bug description: I have a KVM guest system which was running for some time now (142 days uptime). Today, I logged in for the first time since months, and got an error message in syslog (and console): kernel: BTRFS error (device vda2): could not find root 8 The error happened together with my login (in respect to the date of the log entry). The system was running with kernel 4.4.0-31-generic when the problem occured. When googling around, I found some similar results, but nowhere is mentioned that this got fixed somehow. So far, I could not find anything harmful (I did not reboot yet, however). I updated the kernel now, eventually that helps. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-31-generic 4.4.0-31.50 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic x86_64 AlsaDevices: total 0 crw-rw+ 1 root audio 116, 1 Dec 20 13:00 seq crw-rw+ 1 root audio 116, 33 Dec 20 13:00 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Dec 20 13:40:44 2016 HibernationDevice: RESUME=UUID=419693f3-cd92-4870-a16a-7bede16d9b8a InstallationDate: Installed on 2016-06-20 (182 days ago) InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.3) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: QEMU Standard PC (i440FX + PIIX, 1996) PciMultimedia: ProcEnviron: TERM=linux PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 cirrusdrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.4.0-31-generic root=UUID=ebfbbec2-f4df-4e40-92a5-3db6b57eb8f5 ro rootflags=subvol=@ RelatedPackageVersions: linux-restricted-modules-4.4.0-31-generic N/A linux-backports-modules-4.4.0-31-generic N/A linux-firmware1.157.6 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/01/2014 dmi.bios.vendor: SeaBIOS dmi.bios.version: 1.7.5-20140531_083030-gandalf dmi.chassis.type: 1 dmi.chassis.vendor: QEMU dmi.chassis.version: pc-i440fx-2.1 dmi.modalias: dmi:bvnSeaBIOS:bvr1.7.5-20140531_083030-gandalf:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.1:cvnQEMU:ct1:cvrpc-i440fx-2.1: dmi.product.name: Standard PC (i440FX + PIIX, 1996) dmi.product.version: pc-i440fx-2.1 dmi.sys.vendor: QEMU --- AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.4.0-57-generic. AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', '/dev/snd/by-path', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory Card0.Amixer.values: Error: [Errno 2] No such file or directory DistroRelease: Ubuntu 16.04 InstallationDate: Installed on 2013-08-21 (1229 days ago) InstallationMedia: Ubuntu-Server 13.04 "Raring Ringtail" - Release amd64 (20130423.1) IwConfig: em1 no wireless extensions. lono wireless extensions. Lsusb: Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Package: linux (not installed) ProcEnviron: TERM=screen.xterm-256color PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-57-generic root=UUID=16120d81-8cde-4e81-87cd-f55f65a4923b ro rootflags=subvol=@ pcie_aspm=force "acpi_osi=!Windows 2012" acpi=force acpi_enforce_resources=lax i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 i915.lvds_downclock=1 i915.semaphores=1 ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35 RelatedPackageVersions:
[Kernel-packages] [Bug 1651435] Re: BTRFS error: could not find root 8
The bare metal system is a backup server (2x3 Terabytes of disk space), holding a lot of subvolumes from incremental backups). The report files I just sent are from the bare metal system. Note that btrfs is on top of a Luks encrypted partition which is on top of a md raid. That setup is a lot different from the cloud server which had a btrfs partition, directly used in the kvm image (whereas I don't know how the hoster stores that image). Tu sum up: Both systems are really different in terms of age, hardware, storage, etc. The only thing both systems have in common is that they use btrfs and ubuntu 16.04. So far, I did not notice any problems with both systems (no data loss, etc.). -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1651435 Title: BTRFS error: could not find root 8 Status in linux package in Ubuntu: Confirmed Bug description: I have a KVM guest system which was running for some time now (142 days uptime). Today, I logged in for the first time since months, and got an error message in syslog (and console): kernel: BTRFS error (device vda2): could not find root 8 The error happened together with my login (in respect to the date of the log entry). The system was running with kernel 4.4.0-31-generic when the problem occured. When googling around, I found some similar results, but nowhere is mentioned that this got fixed somehow. So far, I could not find anything harmful (I did not reboot yet, however). I updated the kernel now, eventually that helps. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-31-generic 4.4.0-31.50 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic x86_64 AlsaDevices: total 0 crw-rw+ 1 root audio 116, 1 Dec 20 13:00 seq crw-rw+ 1 root audio 116, 33 Dec 20 13:00 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Dec 20 13:40:44 2016 HibernationDevice: RESUME=UUID=419693f3-cd92-4870-a16a-7bede16d9b8a InstallationDate: Installed on 2016-06-20 (182 days ago) InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.3) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: QEMU Standard PC (i440FX + PIIX, 1996) PciMultimedia: ProcEnviron: TERM=linux PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 cirrusdrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.4.0-31-generic root=UUID=ebfbbec2-f4df-4e40-92a5-3db6b57eb8f5 ro rootflags=subvol=@ RelatedPackageVersions: linux-restricted-modules-4.4.0-31-generic N/A linux-backports-modules-4.4.0-31-generic N/A linux-firmware1.157.6 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/01/2014 dmi.bios.vendor: SeaBIOS dmi.bios.version: 1.7.5-20140531_083030-gandalf dmi.chassis.type: 1 dmi.chassis.vendor: QEMU dmi.chassis.version: pc-i440fx-2.1 dmi.modalias: dmi:bvnSeaBIOS:bvr1.7.5-20140531_083030-gandalf:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.1:cvnQEMU:ct1:cvrpc-i440fx-2.1: dmi.product.name: Standard PC (i440FX + PIIX, 1996) dmi.product.version: pc-i440fx-2.1 dmi.sys.vendor: QEMU --- AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.4.0-57-generic. AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', '/dev/snd/by-path', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory Card0.Amixer.values: Error: [Errno 2] No such file or directory DistroRelease: Ubuntu 16.04 InstallationDate: Installed on 2013-08-21 (1229 days ago) InstallationMedia: Ubuntu-Server 13.04 "Raring Ringtail" - Release amd64 (20130423.1) IwConfig: em1 no wireless extensions. lono wireless extensions. Lsusb: Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrate
[Kernel-packages] [Bug 1651435] Re: BTRFS error: could not find root 8
apport information ** Tags added: apport-collected ** Description changed: I have a KVM guest system which was running for some time now (142 days uptime). Today, I logged in for the first time since months, and got an error message in syslog (and console): kernel: BTRFS error (device vda2): could not find root 8 The error happened together with my login (in respect to the date of the log entry). The system was running with kernel 4.4.0-31-generic when the problem occured. When googling around, I found some similar results, but nowhere is mentioned that this got fixed somehow. So far, I could not find anything harmful (I did not reboot yet, however). I updated the kernel now, eventually that helps. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-31-generic 4.4.0-31.50 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic x86_64 AlsaDevices: total 0 crw-rw+ 1 root audio 116, 1 Dec 20 13:00 seq crw-rw+ 1 root audio 116, 33 Dec 20 13:00 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Dec 20 13:40:44 2016 HibernationDevice: RESUME=UUID=419693f3-cd92-4870-a16a-7bede16d9b8a InstallationDate: Installed on 2016-06-20 (182 days ago) InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.3) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: QEMU Standard PC (i440FX + PIIX, 1996) PciMultimedia: ProcEnviron: TERM=linux PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 cirrusdrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.4.0-31-generic root=UUID=ebfbbec2-f4df-4e40-92a5-3db6b57eb8f5 ro rootflags=subvol=@ RelatedPackageVersions: linux-restricted-modules-4.4.0-31-generic N/A linux-backports-modules-4.4.0-31-generic N/A linux-firmware1.157.6 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/01/2014 dmi.bios.vendor: SeaBIOS dmi.bios.version: 1.7.5-20140531_083030-gandalf dmi.chassis.type: 1 dmi.chassis.vendor: QEMU dmi.chassis.version: pc-i440fx-2.1 dmi.modalias: dmi:bvnSeaBIOS:bvr1.7.5-20140531_083030-gandalf:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.1:cvnQEMU:ct1:cvrpc-i440fx-2.1: dmi.product.name: Standard PC (i440FX + PIIX, 1996) dmi.product.version: pc-i440fx-2.1 dmi.sys.vendor: QEMU + --- + AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.4.0-57-generic. + AplayDevices: Error: [Errno 2] No such file or directory + ApportVersion: 2.20.1-0ubuntu2.4 + Architecture: amd64 + ArecordDevices: Error: [Errno 2] No such file or directory + AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', '/dev/snd/by-path', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: + Card0.Amixer.info: Error: [Errno 2] No such file or directory + Card0.Amixer.values: Error: [Errno 2] No such file or directory + DistroRelease: Ubuntu 16.04 + InstallationDate: Installed on 2013-08-21 (1229 days ago) + InstallationMedia: Ubuntu-Server 13.04 "Raring Ringtail" - Release amd64 (20130423.1) + IwConfig: + em1 no wireless extensions. + + lono wireless extensions. + Lsusb: + Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub + Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub + Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub + Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub + Package: linux (not installed) + ProcEnviron: + TERM=screen.xterm-256color + PATH=(custom, no user) + LANG=de_DE.UTF-8 + SHELL=/bin/bash + ProcFB: 0 inteldrmfb + ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-57-generic root=UUID=16120d81-8cde-4e81-87cd-f55f65a4923b ro rootflags=subvol=@ pcie_aspm=force "acpi_osi=!Windows 2012" acpi=force acpi_enforce_resources=lax i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 i915.lvds_downclock=1 i915.semaphores=1 + ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35 + RelatedPackageVersions: + linux-restricted-modules-4.4.0-57-generic N/A + linux-backports-modules-4.4.0-57-generic N/A + linux-firmware1.157.6 + RfKill: Error: [Errno 2] No such file or directory + Tags: xenial + Uname: Linux 4.4.0-57-g
[Kernel-packages] [Bug 1651435] Re: BTRFS error: could not find root 8
I got the same error using a bare metal system on 16.04.. That system got updated from 14.04 (and is much older). That system got installed completely separate/independent, so there is not much to consider that both systems somehow seem to be similar in terms of configuration. The kernel of this system is 4.4.0-57-generic, whereas the error happened after a kernel update followed by a reboot. ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1651435 Title: BTRFS error: could not find root 8 Status in linux package in Ubuntu: Confirmed Bug description: I have a KVM guest system which was running for some time now (142 days uptime). Today, I logged in for the first time since months, and got an error message in syslog (and console): kernel: BTRFS error (device vda2): could not find root 8 The error happened together with my login (in respect to the date of the log entry). The system was running with kernel 4.4.0-31-generic when the problem occured. When googling around, I found some similar results, but nowhere is mentioned that this got fixed somehow. So far, I could not find anything harmful (I did not reboot yet, however). I updated the kernel now, eventually that helps. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-31-generic 4.4.0-31.50 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic x86_64 AlsaDevices: total 0 crw-rw+ 1 root audio 116, 1 Dec 20 13:00 seq crw-rw+ 1 root audio 116, 33 Dec 20 13:00 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Dec 20 13:40:44 2016 HibernationDevice: RESUME=UUID=419693f3-cd92-4870-a16a-7bede16d9b8a InstallationDate: Installed on 2016-06-20 (182 days ago) InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.3) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: QEMU Standard PC (i440FX + PIIX, 1996) PciMultimedia: ProcEnviron: TERM=linux PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 cirrusdrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.4.0-31-generic root=UUID=ebfbbec2-f4df-4e40-92a5-3db6b57eb8f5 ro rootflags=subvol=@ RelatedPackageVersions: linux-restricted-modules-4.4.0-31-generic N/A linux-backports-modules-4.4.0-31-generic N/A linux-firmware1.157.6 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/01/2014 dmi.bios.vendor: SeaBIOS dmi.bios.version: 1.7.5-20140531_083030-gandalf dmi.chassis.type: 1 dmi.chassis.vendor: QEMU dmi.chassis.version: pc-i440fx-2.1 dmi.modalias: dmi:bvnSeaBIOS:bvr1.7.5-20140531_083030-gandalf:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.1:cvnQEMU:ct1:cvrpc-i440fx-2.1: dmi.product.name: Standard PC (i440FX + PIIX, 1996) dmi.product.version: pc-i440fx-2.1 dmi.sys.vendor: QEMU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1651435/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1651435] Re: BTRFS error: could not find root 8
Please change the status back to "Confirmed" if the bug happens again. ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Tags added: kernel-da-key -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1651435 Title: BTRFS error: could not find root 8 Status in linux package in Ubuntu: Incomplete Bug description: I have a KVM guest system which was running for some time now (142 days uptime). Today, I logged in for the first time since months, and got an error message in syslog (and console): kernel: BTRFS error (device vda2): could not find root 8 The error happened together with my login (in respect to the date of the log entry). The system was running with kernel 4.4.0-31-generic when the problem occured. When googling around, I found some similar results, but nowhere is mentioned that this got fixed somehow. So far, I could not find anything harmful (I did not reboot yet, however). I updated the kernel now, eventually that helps. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-31-generic 4.4.0-31.50 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic x86_64 AlsaDevices: total 0 crw-rw+ 1 root audio 116, 1 Dec 20 13:00 seq crw-rw+ 1 root audio 116, 33 Dec 20 13:00 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Dec 20 13:40:44 2016 HibernationDevice: RESUME=UUID=419693f3-cd92-4870-a16a-7bede16d9b8a InstallationDate: Installed on 2016-06-20 (182 days ago) InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.3) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: QEMU Standard PC (i440FX + PIIX, 1996) PciMultimedia: ProcEnviron: TERM=linux PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 cirrusdrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.4.0-31-generic root=UUID=ebfbbec2-f4df-4e40-92a5-3db6b57eb8f5 ro rootflags=subvol=@ RelatedPackageVersions: linux-restricted-modules-4.4.0-31-generic N/A linux-backports-modules-4.4.0-31-generic N/A linux-firmware1.157.6 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/01/2014 dmi.bios.vendor: SeaBIOS dmi.bios.version: 1.7.5-20140531_083030-gandalf dmi.chassis.type: 1 dmi.chassis.vendor: QEMU dmi.chassis.version: pc-i440fx-2.1 dmi.modalias: dmi:bvnSeaBIOS:bvr1.7.5-20140531_083030-gandalf:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.1:cvnQEMU:ct1:cvrpc-i440fx-2.1: dmi.product.name: Standard PC (i440FX + PIIX, 1996) dmi.product.version: pc-i440fx-2.1 dmi.sys.vendor: QEMU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1651435/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1651435] Re: BTRFS error: could not find root 8
Reboot worked without issues, now using kernel 4.4.0-53-generic x86_64. I'll see how that works out. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1651435 Title: BTRFS error: could not find root 8 Status in linux package in Ubuntu: Confirmed Bug description: I have a KVM guest system which was running for some time now (142 days uptime). Today, I logged in for the first time since months, and got an error message in syslog (and console): kernel: BTRFS error (device vda2): could not find root 8 The error happened together with my login (in respect to the date of the log entry). The system was running with kernel 4.4.0-31-generic when the problem occured. When googling around, I found some similar results, but nowhere is mentioned that this got fixed somehow. So far, I could not find anything harmful (I did not reboot yet, however). I updated the kernel now, eventually that helps. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-31-generic 4.4.0-31.50 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic x86_64 AlsaDevices: total 0 crw-rw+ 1 root audio 116, 1 Dec 20 13:00 seq crw-rw+ 1 root audio 116, 33 Dec 20 13:00 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Dec 20 13:40:44 2016 HibernationDevice: RESUME=UUID=419693f3-cd92-4870-a16a-7bede16d9b8a InstallationDate: Installed on 2016-06-20 (182 days ago) InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.3) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lsusb: Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: QEMU Standard PC (i440FX + PIIX, 1996) PciMultimedia: ProcEnviron: TERM=linux PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 cirrusdrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.4.0-31-generic root=UUID=ebfbbec2-f4df-4e40-92a5-3db6b57eb8f5 ro rootflags=subvol=@ RelatedPackageVersions: linux-restricted-modules-4.4.0-31-generic N/A linux-backports-modules-4.4.0-31-generic N/A linux-firmware1.157.6 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/01/2014 dmi.bios.vendor: SeaBIOS dmi.bios.version: 1.7.5-20140531_083030-gandalf dmi.chassis.type: 1 dmi.chassis.vendor: QEMU dmi.chassis.version: pc-i440fx-2.1 dmi.modalias: dmi:bvnSeaBIOS:bvr1.7.5-20140531_083030-gandalf:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.1:cvnQEMU:ct1:cvrpc-i440fx-2.1: dmi.product.name: Standard PC (i440FX + PIIX, 1996) dmi.product.version: pc-i440fx-2.1 dmi.sys.vendor: QEMU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1651435/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
