[Bug 1374759] Re: >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old

Mon Jul 18 07:14:57 UTC 2016

Ross, I would suggest to open a new bug report (run "ubuntu-bug os-
prober"). Although the resulting symptoms (error messages) are the same,
it is caused by a different case. Which needs more info to avoid. The
snippet above does not work in the general case. Which means to avoid it
automatically this needs more info about what to avoid.

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Title:
  >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is
  ufstype=old

Status in os-prober package in Ubuntu:
  Fix Released
Status in os-prober package in Debian:
  Fix Released

Bug description:
  [  556.734157] SGI XFS with ACLs, security attributes, realtime, large block/inode numbers, no debug enabled
  [  556.746268] JFS: nTxBlock = 8192, nTxLock = 65536
  [  556.763789] ntfs: driver 2.1.30 [Flags: R/O MODULE].
  [  556.792231] QNX4 filesystem 0.2.3 registered.
  [  557.922469] EXT4-fs (sda4): unable to read superblock
  [  557.925868] EXT4-fs (sda4): unable to read superblock
  [  557.928967] EXT4-fs (sda4): unable to read superblock
  [  557.931784] FAT-fs (sda4): bogus number of reserved sectors
  [  557.931791] FAT-fs (sda4): Can't find a valid FAT filesystem
  [  557.946740] XFS (sda4): Invalid superblock magic number
  [  557.951904] FAT-fs (sda4): bogus number of reserved sectors
  [  557.951911] FAT-fs (sda4): Can't find a valid FAT filesystem
  [  557.959099] MINIX-fs: unable to read superblock
  [  557.965712] attempt to access beyond end of device
  [  557.965721] sda4: rw=16, want=3, limit=2
  [  557.965725] hfsplus: unable to find HFS+ superblock
  [  557.968487] qnx4: no qnx4 filesystem (no root dir).
  [  557.971203] 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
  [  557.974459] hfs: can't find a HFS filesystem on dev sda4
  [  564.034208] EXT4-fs (sda4): unable to read superblock
  [  564.040322] EXT4-fs (sda4): unable to read superblock
  [  564.043485] EXT4-fs (sda4): unable to read superblock
  [  564.047076] FAT-fs (sda4): bogus number of reserved sectors
  [  564.047083] FAT-fs (sda4): Can't find a valid FAT filesystem
  [  564.059578] XFS (sda4): Invalid superblock magic number
  [  564.064473] FAT-fs (sda4): bogus number of reserved sectors
  [  564.064489] FAT-fs (sda4): Can't find a valid FAT filesystem
  [  564.072080] MINIX-fs: unable to read superblock
  [  564.074564] attempt to access beyond end of device
  [  564.074571] sda4: rw=16, want=3, limit=2
  [  564.074576] hfsplus: unable to find HFS+ superblock
  [  564.076688] qnx4: no qnx4 filesystem (no root dir).
  [  564.078847] 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
  [  564.080902] hfs: can't find a HFS filesystem on dev sda4
  [  570.554296] EXT4-fs (sda4): unable to read superblock
  [  570.557647] EXT4-fs (sda4): unable to read superblock
  [  570.560516] EXT4-fs (sda4): unable to read superblock
  [  570.563451] FAT-fs (sda4): bogus number of reserved sectors
  [  570.563460] FAT-fs (sda4): Can't find a valid FAT filesystem
  [  570.574953] XFS (sda4): Invalid superblock magic number
  [  570.580796] FAT-fs (sda4): bogus number of reserved sectors
  [  570.580806] FAT-fs (sda4): Can't find a valid FAT filesystem
  [  570.588340] MINIX-fs: unable to read superblock
  [  570.590983] attempt to access beyond end of device
  [  570.590993] sda4: rw=16, want=3, limit=2
  [  570.590999] hfsplus: unable to find HFS+ superblock
  [  570.593321] qnx4: no qnx4 filesystem (no root dir).
  [  570.595556] 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
  [  570.597775] hfs: can't find a HFS filesystem on dev sda4
  [  576.795014] EXT4-fs (sda4): unable to read superblock
  [  576.797554] EXT4-fs (sda4): unable to read superblock
  [  576.800063] EXT4-fs (sda4): unable to read superblock
  [  576.802647] FAT-fs (sda4): bogus number of reserved sectors
  [  576.802655] FAT-fs (sda4): Can't find a valid FAT filesystem
  [  576.813305] XFS (sda4): Invalid superblock magic number
  [  576.820257] FAT-fs (sda4): bogus number of reserved sectors
  [  576.820276] FAT-fs (sda4): Can't find a valid FAT filesystem
  [  576.830945] MINIX-fs: unable to read superblock
  [  576.834108] attempt to access beyond end of device
  [  576.834119] sda4: rw=16, want=3, limit=2
  [  576.834125] hfsplus: unable to find HFS+ superblock
  [  576.837264] qnx4: no qnx4 filesystem (no root dir).
  [  576.840408] 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
  [  576.843535] hfs: can't find a HFS filesystem on dev sda4

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-18-generic 3.16.0-18.25
  ProcVersionSignature: Ubuntu 3.16.0-18.25-generic 3.16.3
  Uname: Linux 3.16.0-18-generic x86_64
  ApportVersion: 2.14.7-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  caravena   2117 F.... pulseaudio
  CurrentDesktop: GNOME
  Date: Sat Sep 27 10:39:43 2014
  HibernationDevice: RESUME=UUID=360bd2d2-4f44-4311-86d6-4781ac81ee87
  InstallationDate: Installed on 2014-09-25 (2 days ago)
  InstallationMedia: Ubuntu-GNOME 14.10 "Utopic Unicorn" - Alpha amd64 (20140923)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 530U3C/530U4C
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.16.0-18-generic root=UUID=0fb75fae-baa3-428b-ace4-498e69ff7fb6 ro rootflags=subvol=@ quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-18-generic N/A
   linux-backports-modules-3.16.0-18-generic  N/A
   linux-firmware                             1.134
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/15/2013
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: P14AAJ
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: SAMSUNG_NP1234567890
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: FAB1
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP14AAJ:bd04/15/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn530U3C/530U4C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
  dmi.product.name: 530U3C/530U4C
  dmi.product.version: 0.1
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

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