** Description changed: - According to this it should be fixed - https://bugs.launchpad.net/ubuntu/+source/os- - prober/+bug/1374759/comments/32 + [Impact] + + This bug generate some warnings in system log and in some cases it also might cause FS corruption + as seen with a user using MySQL for his Openstack env. + + + [Test Case] + + As of today, there is 3 reported way to reproduce the problem so far : + + #1 + + Reboot system + $ sudo update-grub + then check the log again: + $ journalctl -p err -b -k --no-pager + + #2 + Placing a VM under IO load (basically just ran dd if=/dev/vda of=/dev/null) and then ran update-grub on the hypervisor host. + + #3 + Simply run: os-prober, on an hypervisor some VM with LVM storage backend. + + [Regression Potential] + + none expected + A test package has been tested by several users experiencing the issue, and positives feedbacks has been provided in all cases. + + [Other Info] + + Debian bugs: + Merged 648208 788062 806273 810121 + + Debian Patch: + https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=806273;filename=v2-0001-use-grub-mount-as-the-sole-source-of-partition-pr.patch;msg=30 + + [Original Description] + According to this it should be fixed https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1374759/comments/32 But on my system I intended to install on /dev/sdb1 and noticed these warning message in my system log. Steps to reproduce: 1. reboot system 2. $ sudo update-grub then check the log again: $ journalctl -p err -b -k --no-pager -- Logs begin at Sun 2016-05-08 10:47:49 CST, end at Mon 2016-05-09 11:42:04 CST. -- May 08 10:47:50 X230 kernel: [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A May 08 10:47:50 X230 kernel: [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun May 08 10:55:34 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:34 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:34 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:34 X230 kernel: FAT-fs (sdb1): invalid media value (0x7d) May 08 10:55:34 X230 kernel: squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on sdb1 May 08 10:55:34 X230 kernel: FAT-fs (sdb1): invalid media value (0x7d) May 08 10:55:34 X230 kernel: qnx4: no qnx4 filesystem (no root dir). May 08 10:55:34 X230 kernel: ufs: You didn't specify the type of your ufs filesystem mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ... >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old May 08 10:55:34 X230 kernel: ufs: ufs_fill_super(): bad magic number May 08 10:55:34 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:34 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:34 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:34 X230 kernel: FAT-fs (sdb4): bogus number of reserved sectors May 08 10:55:34 X230 kernel: squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on sdb4 May 08 10:55:34 X230 kernel: FAT-fs (sdb4): bogus number of reserved sectors May 08 10:55:34 X230 kernel: qnx4: no qnx4 filesystem (no root dir). May 08 10:55:34 X230 kernel: ufs: You didn't specify the type of your ufs filesystem mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ... >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old May 08 10:55:34 X230 kernel: ufs: ufs_fill_super(): bad magic number May 08 10:55:52 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:52 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:52 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:52 X230 kernel: FAT-fs (sdb1): invalid media value (0x7d) May 08 10:55:52 X230 kernel: squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on sdb1 May 08 10:55:52 X230 kernel: FAT-fs (sdb1): invalid media value (0x7d) May 08 10:55:52 X230 kernel: qnx4: no qnx4 filesystem (no root dir). May 08 10:55:52 X230 kernel: ufs: You didn't specify the type of your ufs filesystem mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ... >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old May 08 10:55:52 X230 kernel: ufs: ufs_fill_super(): bad magic number May 08 10:55:52 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:52 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:52 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:52 X230 kernel: FAT-fs (sdb4): bogus number of reserved sectors May 08 10:55:52 X230 kernel: squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on sdb4 May 08 10:55:52 X230 kernel: FAT-fs (sdb4): bogus number of reserved sectors May 08 10:55:52 X230 kernel: qnx4: no qnx4 filesystem (no root dir). May 08 10:55:52 X230 kernel: ufs: You didn't specify the type of your ufs filesystem mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ... >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old May 08 10:55:52 X230 kernel: ufs: ufs_fill_super(): bad magic number May 08 10:55:59 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:59 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:59 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:59 X230 kernel: FAT-fs (sdb1): invalid media value (0x7d) May 08 10:55:59 X230 kernel: squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on sdb1 May 08 10:55:59 X230 kernel: FAT-fs (sdb1): invalid media value (0x7d) May 08 10:55:59 X230 kernel: qnx4: no qnx4 filesystem (no root dir). May 08 10:55:59 X230 kernel: ufs: You didn't specify the type of your ufs filesystem mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ... >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old May 08 10:55:59 X230 kernel: ufs: ufs_fill_super(): bad magic number May 08 10:55:59 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:59 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:59 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:59 X230 kernel: FAT-fs (sdb4): bogus number of reserved sectors May 08 10:55:59 X230 kernel: squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on sdb4 May 08 10:55:59 X230 kernel: FAT-fs (sdb4): bogus number of reserved sectors May 08 10:55:59 X230 kernel: qnx4: no qnx4 filesystem (no root dir). May 08 10:55:59 X230 kernel: ufs: You didn't specify the type of your ufs filesystem mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ... >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old May 08 10:55:59 X230 kernel: ufs: ufs_fill_super(): bad magic number May 08 21:16:00 X230 kernel: ACPI: \_SB_.PCI0.LPC_.EC__.BAT1: Unable to dock! ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: os-prober 1.70ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6 Uname: Linux 4.4.0-21-generic x86_64 ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 CurrentDesktop: Unity Date: Mon May 9 11:42:57 2016 Dependencies: gcc-6-base 6.0.1-0ubuntu1 libc6 2.23-0ubuntu3 libgcc1 1:6.0.1-0ubuntu1 InstallationDate: Installed on 2016-05-03 (5 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) SourcePackage: os-prober UpgradeStatus: No upgrade log present (probably fresh install)
** Description changed: [Impact] This bug generate some warnings in system log and in some cases it also might cause FS corruption as seen with a user using MySQL for his Openstack env. - [Test Case] As of today, there is 3 reported way to reproduce the problem so far : #1 Reboot system $ sudo update-grub then check the log again: $ journalctl -p err -b -k --no-pager - #2 + #2 Placing a VM under IO load (basically just ran dd if=/dev/vda of=/dev/null) and then ran update-grub on the hypervisor host. - #3 + #3 Simply run: os-prober, on an hypervisor some VM with LVM storage backend. [Regression Potential] none expected A test package has been tested by several users experiencing the issue, and positives feedbacks has been provided in all cases. [Other Info] - Debian bugs: - Merged 648208 788062 806273 810121 + Debian bug: + https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=788062 + (Merged 648208 788062 806273 810121) Debian Patch: https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=806273;filename=v2-0001-use-grub-mount-as-the-sole-source-of-partition-pr.patch;msg=30 [Original Description] - According to this it should be fixed https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1374759/comments/32 + + According to this it should be fixed + https://bugs.launchpad.net/ubuntu/+source/os- + prober/+bug/1374759/comments/32 But on my system I intended to install on /dev/sdb1 and noticed these warning message in my system log. Steps to reproduce: 1. reboot system 2. $ sudo update-grub then check the log again: $ journalctl -p err -b -k --no-pager -- Logs begin at Sun 2016-05-08 10:47:49 CST, end at Mon 2016-05-09 11:42:04 CST. -- May 08 10:47:50 X230 kernel: [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A May 08 10:47:50 X230 kernel: [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun May 08 10:55:34 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:34 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:34 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:34 X230 kernel: FAT-fs (sdb1): invalid media value (0x7d) May 08 10:55:34 X230 kernel: squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on sdb1 May 08 10:55:34 X230 kernel: FAT-fs (sdb1): invalid media value (0x7d) May 08 10:55:34 X230 kernel: qnx4: no qnx4 filesystem (no root dir). May 08 10:55:34 X230 kernel: ufs: You didn't specify the type of your ufs filesystem mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ... >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old May 08 10:55:34 X230 kernel: ufs: ufs_fill_super(): bad magic number May 08 10:55:34 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:34 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:34 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:34 X230 kernel: FAT-fs (sdb4): bogus number of reserved sectors May 08 10:55:34 X230 kernel: squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on sdb4 May 08 10:55:34 X230 kernel: FAT-fs (sdb4): bogus number of reserved sectors May 08 10:55:34 X230 kernel: qnx4: no qnx4 filesystem (no root dir). May 08 10:55:34 X230 kernel: ufs: You didn't specify the type of your ufs filesystem mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ... >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old May 08 10:55:34 X230 kernel: ufs: ufs_fill_super(): bad magic number May 08 10:55:52 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:52 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:52 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:52 X230 kernel: FAT-fs (sdb1): invalid media value (0x7d) May 08 10:55:52 X230 kernel: squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on sdb1 May 08 10:55:52 X230 kernel: FAT-fs (sdb1): invalid media value (0x7d) May 08 10:55:52 X230 kernel: qnx4: no qnx4 filesystem (no root dir). May 08 10:55:52 X230 kernel: ufs: You didn't specify the type of your ufs filesystem mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ... >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old May 08 10:55:52 X230 kernel: ufs: ufs_fill_super(): bad magic number May 08 10:55:52 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:52 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:52 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:52 X230 kernel: FAT-fs (sdb4): bogus number of reserved sectors May 08 10:55:52 X230 kernel: squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on sdb4 May 08 10:55:52 X230 kernel: FAT-fs (sdb4): bogus number of reserved sectors May 08 10:55:52 X230 kernel: qnx4: no qnx4 filesystem (no root dir). May 08 10:55:52 X230 kernel: ufs: You didn't specify the type of your ufs filesystem mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ... >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old May 08 10:55:52 X230 kernel: ufs: ufs_fill_super(): bad magic number May 08 10:55:59 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:59 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:59 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:59 X230 kernel: FAT-fs (sdb1): invalid media value (0x7d) May 08 10:55:59 X230 kernel: squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on sdb1 May 08 10:55:59 X230 kernel: FAT-fs (sdb1): invalid media value (0x7d) May 08 10:55:59 X230 kernel: qnx4: no qnx4 filesystem (no root dir). May 08 10:55:59 X230 kernel: ufs: You didn't specify the type of your ufs filesystem mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ... >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old May 08 10:55:59 X230 kernel: ufs: ufs_fill_super(): bad magic number May 08 10:55:59 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:59 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:59 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:59 X230 kernel: FAT-fs (sdb4): bogus number of reserved sectors May 08 10:55:59 X230 kernel: squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on sdb4 May 08 10:55:59 X230 kernel: FAT-fs (sdb4): bogus number of reserved sectors May 08 10:55:59 X230 kernel: qnx4: no qnx4 filesystem (no root dir). May 08 10:55:59 X230 kernel: ufs: You didn't specify the type of your ufs filesystem mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ... >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old May 08 10:55:59 X230 kernel: ufs: ufs_fill_super(): bad magic number May 08 21:16:00 X230 kernel: ACPI: \_SB_.PCI0.LPC_.EC__.BAT1: Unable to dock! ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: os-prober 1.70ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6 Uname: Linux 4.4.0-21-generic x86_64 ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 CurrentDesktop: Unity Date: Mon May 9 11:42:57 2016 Dependencies: gcc-6-base 6.0.1-0ubuntu1 libc6 2.23-0ubuntu3 libgcc1 1:6.0.1-0ubuntu1 InstallationDate: Installed on 2016-05-03 (5 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) SourcePackage: os-prober UpgradeStatus: No upgrade log present (probably fresh install) ** Description changed: [Impact] - This bug generate some warnings in system log and in some cases it also might cause FS corruption - as seen with a user using MySQL for his Openstack env. + This bug generate some warnings in system log and in some cases it also + might cause FS corruption as seen with a user using MySQL for his + Openstack env. [Test Case] As of today, there is 3 reported way to reproduce the problem so far : #1 Reboot system $ sudo update-grub then check the log again: $ journalctl -p err -b -k --no-pager #2 Placing a VM under IO load (basically just ran dd if=/dev/vda of=/dev/null) and then ran update-grub on the hypervisor host. #3 Simply run: os-prober, on an hypervisor some VM with LVM storage backend. [Regression Potential] none expected A test package has been tested by several users experiencing the issue, and positives feedbacks has been provided in all cases. [Other Info] + + Workaround: + - Disable os-prober + - Uninstall os-prober Debian bug: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=788062 (Merged 648208 788062 806273 810121) Debian Patch: https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=806273;filename=v2-0001-use-grub-mount-as-the-sole-source-of-partition-pr.patch;msg=30 [Original Description] According to this it should be fixed https://bugs.launchpad.net/ubuntu/+source/os- prober/+bug/1374759/comments/32 But on my system I intended to install on /dev/sdb1 and noticed these warning message in my system log. Steps to reproduce: 1. reboot system 2. $ sudo update-grub then check the log again: $ journalctl -p err -b -k --no-pager -- Logs begin at Sun 2016-05-08 10:47:49 CST, end at Mon 2016-05-09 11:42:04 CST. -- May 08 10:47:50 X230 kernel: [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A May 08 10:47:50 X230 kernel: [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun May 08 10:55:34 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:34 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:34 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:34 X230 kernel: FAT-fs (sdb1): invalid media value (0x7d) May 08 10:55:34 X230 kernel: squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on sdb1 May 08 10:55:34 X230 kernel: FAT-fs (sdb1): invalid media value (0x7d) May 08 10:55:34 X230 kernel: qnx4: no qnx4 filesystem (no root dir). May 08 10:55:34 X230 kernel: ufs: You didn't specify the type of your ufs filesystem mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ... >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old May 08 10:55:34 X230 kernel: ufs: ufs_fill_super(): bad magic number May 08 10:55:34 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:34 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:34 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:34 X230 kernel: FAT-fs (sdb4): bogus number of reserved sectors May 08 10:55:34 X230 kernel: squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on sdb4 May 08 10:55:34 X230 kernel: FAT-fs (sdb4): bogus number of reserved sectors May 08 10:55:34 X230 kernel: qnx4: no qnx4 filesystem (no root dir). May 08 10:55:34 X230 kernel: ufs: You didn't specify the type of your ufs filesystem mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ... >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old May 08 10:55:34 X230 kernel: ufs: ufs_fill_super(): bad magic number May 08 10:55:52 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:52 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:52 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:52 X230 kernel: FAT-fs (sdb1): invalid media value (0x7d) May 08 10:55:52 X230 kernel: squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on sdb1 May 08 10:55:52 X230 kernel: FAT-fs (sdb1): invalid media value (0x7d) May 08 10:55:52 X230 kernel: qnx4: no qnx4 filesystem (no root dir). May 08 10:55:52 X230 kernel: ufs: You didn't specify the type of your ufs filesystem mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ... >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old May 08 10:55:52 X230 kernel: ufs: ufs_fill_super(): bad magic number May 08 10:55:52 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:52 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:52 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:52 X230 kernel: FAT-fs (sdb4): bogus number of reserved sectors May 08 10:55:52 X230 kernel: squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on sdb4 May 08 10:55:52 X230 kernel: FAT-fs (sdb4): bogus number of reserved sectors May 08 10:55:52 X230 kernel: qnx4: no qnx4 filesystem (no root dir). May 08 10:55:52 X230 kernel: ufs: You didn't specify the type of your ufs filesystem mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ... >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old May 08 10:55:52 X230 kernel: ufs: ufs_fill_super(): bad magic number May 08 10:55:59 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:59 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:59 X230 kernel: EXT4-fs (sdb1): VFS: Can't find ext4 filesystem May 08 10:55:59 X230 kernel: FAT-fs (sdb1): invalid media value (0x7d) May 08 10:55:59 X230 kernel: squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on sdb1 May 08 10:55:59 X230 kernel: FAT-fs (sdb1): invalid media value (0x7d) May 08 10:55:59 X230 kernel: qnx4: no qnx4 filesystem (no root dir). May 08 10:55:59 X230 kernel: ufs: You didn't specify the type of your ufs filesystem mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ... >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old May 08 10:55:59 X230 kernel: ufs: ufs_fill_super(): bad magic number May 08 10:55:59 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:59 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:59 X230 kernel: EXT4-fs (sdb4): VFS: Can't find ext4 filesystem May 08 10:55:59 X230 kernel: FAT-fs (sdb4): bogus number of reserved sectors May 08 10:55:59 X230 kernel: squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on sdb4 May 08 10:55:59 X230 kernel: FAT-fs (sdb4): bogus number of reserved sectors May 08 10:55:59 X230 kernel: qnx4: no qnx4 filesystem (no root dir). May 08 10:55:59 X230 kernel: ufs: You didn't specify the type of your ufs filesystem mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ... >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old May 08 10:55:59 X230 kernel: ufs: ufs_fill_super(): bad magic number May 08 21:16:00 X230 kernel: ACPI: \_SB_.PCI0.LPC_.EC__.BAT1: Unable to dock! ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: os-prober 1.70ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6 Uname: Linux 4.4.0-21-generic x86_64 ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 CurrentDesktop: Unity Date: Mon May 9 11:42:57 2016 Dependencies: gcc-6-base 6.0.1-0ubuntu1 libc6 2.23-0ubuntu3 libgcc1 1:6.0.1-0ubuntu1 InstallationDate: Installed on 2016-05-03 (5 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) SourcePackage: os-prober UpgradeStatus: No upgrade log present (probably fresh install) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1579609 Title: os-prober bug resulting in possible FS corruption To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1579609/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
