[Bug 733116] Re: /usr/sbin/grub-probe: error: unknown filesystem.

[H.-Dirk Schmitt]

See also
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/681535/comments/2

1st I checked that '/usr/sbin/grub-probe --device /dev/md1
--target=drive' doesn't rise an error message.


I have installed manually the following packages:
 
dpkg -i grub-common_1.99~rc1-13ubuntu3_amd64.deb grub-gfxpayload-lists_0.2_amd64.deb grub-pc_1.99~rc1-13ubuntu3_amd64.deb

The problem doesn't  appears any more.

So please update also in lucid
grub2  1.98 -->  1.99~20101126-1ubuntu1 (or newer)

** Changed in: grub2 (Ubuntu)
       Status: New => Confirmed

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Title:
  /usr/sbin/grub-probe: error: unknown filesystem.

Status in “grub2” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: grub2

  update-grub is failing

  Reason is in 00_header:
  /usr/sbin/grub-probe  --device /dev/md1 --target=fs
  /usr/sbin/grub-probe: error: unknown filesystem.

  mdadm -Q /dev/md1
  /dev/md1: 1463.81MiB raid5 4 devices, 0 spares.

  /dev/md1 on /boot type ext4 (rw,relatime)

  
  /usr/sbin/grub-probe --verbose --verbose --device /dev/md1 --target=fs
  ....
  /build/buildd/grub2-1.98/kern/disk.c:245: Opening `md1'...
  /build/buildd/grub2-1.98/disk/raid.c:134: md1: total_devs=4, disk_size=140017536
  /build/buildd/grub2-1.98/disk/raid.c:163: md1: level=5, total_sectors=420052608
  /build/buildd/grub2-1.98/kern/fs.c:84: Detecting afs...
  /build/buildd/grub2-1.98/kern/fs.c:90: afs detection failed.
  /build/buildd/grub2-1.98/kern/fs.c:84: Detecting afs_be...
  /build/buildd/grub2-1.98/kern/fs.c:90: afs_be detection failed.
  /build/buildd/grub2-1.98/kern/fs.c:84: Detecting befs...
  /build/buildd/grub2-1.98/kern/fs.c:90: befs detection failed.
  /build/buildd/grub2-1.98/kern/fs.c:84: Detecting befs_be...
  /build/buildd/grub2-1.98/kern/fs.c:90: befs_be detection failed.
  /build/buildd/grub2-1.98/kern/fs.c:84: Detecting xfs...
  /build/buildd/grub2-1.98/kern/fs.c:90: xfs detection failed.
  /build/buildd/grub2-1.98/kern/fs.c:84: Detecting ufs1...
  /build/buildd/grub2-1.98/kern/fs.c:90: ufs1 detection failed.
  /build/buildd/grub2-1.98/kern/fs.c:84: Detecting ufs2...
  /build/buildd/grub2-1.98/kern/fs.c:90: ufs2 detection failed.
  /build/buildd/grub2-1.98/kern/fs.c:84: Detecting sfs...
  /build/buildd/grub2-1.98/kern/fs.c:90: sfs detection failed.
  /build/buildd/grub2-1.98/kern/fs.c:84: Detecting reiserfs...
  /build/buildd/grub2-1.98/kern/fs.c:90: reiserfs detection failed.
  /build/buildd/grub2-1.98/kern/fs.c:84: Detecting ntfs...
  /build/buildd/grub2-1.98/kern/fs.c:90: ntfs detection failed.
  /build/buildd/grub2-1.98/kern/fs.c:84: Detecting minix...
  /build/buildd/grub2-1.98/kern/fs.c:90: minix detection failed.
  /build/buildd/grub2-1.98/kern/fs.c:84: Detecting jfs...
  /build/buildd/grub2-1.98/kern/fs.c:90: jfs detection failed.
  /build/buildd/grub2-1.98/kern/fs.c:84: Detecting udf...
  /build/buildd/grub2-1.98/kern/fs.c:90: udf detection failed.
  /build/buildd/grub2-1.98/kern/fs.c:84: Detecting iso9660...
  /build/buildd/grub2-1.98/kern/fs.c:90: iso9660 detection failed.
  /build/buildd/grub2-1.98/kern/fs.c:84: Detecting hfsplus...
  /build/buildd/grub2-1.98/kern/fs.c:90: hfsplus detection failed.
  /build/buildd/grub2-1.98/kern/fs.c:84: Detecting hfs...
  /build/buildd/grub2-1.98/kern/fs.c:90: hfs detection failed.
  /build/buildd/grub2-1.98/kern/fs.c:84: Detecting ext2...
  /build/buildd/grub2-1.98/kern/fs.c:90: ext2 detection failed.                   <-- look here
  /build/buildd/grub2-1.98/kern/fs.c:84: Detecting fat...
  /build/buildd/grub2-1.98/kern/fs.c:90: fat detection failed.
  /build/buildd/grub2-1.98/kern/fs.c:84: Detecting cpiofs...
  /build/buildd/grub2-1.98/kern/fs.c:90: cpiofs detection failed.
  /build/buildd/grub2-1.98/kern/fs.c:84: Detecting tarfs...
  /build/buildd/grub2-1.98/kern/fs.c:90: tarfs detection failed.
  /build/buildd/grub2-1.98/kern/fs.c:84: Detecting affs...
  /build/buildd/grub2-1.98/kern/fs.c:90: affs detection failed.
  /usr/sbin/grub-probe: error: unknown filesystem.

  For testing purposes switched /dev/md1 to ext2 file system - same
  error :-/

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: grub2 (not installed)
  ProcVersionSignature: Ubuntu 2.6.32-28.55-server 2.6.32.27+drm33.12
  Uname: Linux 2.6.32-28-server x86_64
  Architecture: amd64
  Date: Fri Mar 11 09:16:49 2011
  ProcEnviron:
   LANGUAGE=en_US:en
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
   LC_PAPER=de_DE.UTF-8
  SourcePackage: grub2

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