[erledigt] update-grub in Ubuntu 16.04 spuckt Fehlermeldungen

[cuco]

Anderer Rechner, anderes Problem mit Grub unter Ubuntu 16.04

Wenn ich dort update-grub ausführe (wie es z.B. bei einem Update des Kernels auch automatisch ausgeführt wird) kommt folgendes:

Apr 26 22:23:08 einstein kernel: [  240.590651] SGI XFS with ACLs, security attributes, realtime, no debug enabled
Apr 26 22:23:08 einstein kernel: [  240.626910] JFS: nTxBlock = 8192, nTxLock = 65536
Apr 26 22:23:08 einstein kernel: [  240.664505] ntfs: driver 2.1.32 [Flags: R/O MODULE].
Apr 26 22:23:08 einstein kernel: [  240.712055] QNX4 filesystem 0.2.3 registered.
Apr 26 22:23:08 einstein kernel: [  240.754565] Btrfs loaded
Apr 26 22:23:08 einstein os-prober: debug: /dev/sda1: part of software raid array
Apr 26 22:23:08 einstein os-prober: debug: /dev/sdb1: part of software raid array
Apr 26 22:23:08 einstein os-prober: debug: /dev/mapper/einstein-swap: is active swap
Apr 26 22:23:09 einstein os-prober: debug: running /usr/lib/os-probes/50mounted-tests on /dev/mapper/einstein-vm_fmec
Apr 26 22:23:09 einstein kernel: [  241.486342] EXT4-fs (dm-3): VFS: Can't find ext4 filesystem
Apr 26 22:23:09 einstein kernel: [  241.490093] EXT4-fs (dm-3): VFS: Can't find ext4 filesystem
Apr 26 22:23:09 einstein kernel: [  241.493868] EXT4-fs (dm-3): VFS: Can't find ext4 filesystem
Apr 26 22:23:09 einstein kernel: [  241.497822] FAT-fs (dm-3): invalid media value (0x00)
Apr 26 22:23:09 einstein kernel: [  241.499473] FAT-fs (dm-3): Can't find a valid FAT filesystem
Apr 26 22:23:09 einstein kernel: [  241.501990] XFS (dm-3): Invalid superblock magic number
Apr 26 22:23:09 einstein kernel: [  241.529137] FAT-fs (dm-3): invalid media value (0x00)
Apr 26 22:23:09 einstein kernel: [  241.530761] FAT-fs (dm-3): Can't find a valid FAT filesystem
Apr 26 22:23:09 einstein kernel: [  241.573545] ntfs: (device dm-3): read_ntfs_boot_sector(): Primary boot sector is invalid.
Apr 26 22:23:09 einstein kernel: [  241.576224] ntfs: (device dm-3): read_ntfs_boot_sector(): Mount option errors=recover not used. Aborting without trying to recover.
Apr 26 22:23:09 einstein kernel: [  241.580231] ntfs: (device dm-3): ntfs_fill_super(): Not an NTFS volume.
Apr 26 22:23:09 einstein kernel: [  241.584683] VFS: Can't find a Minix filesystem V1 | V2 | V3 on device dm-3.
Apr 26 22:23:09 einstein kernel: [  241.586723] hfsplus: unable to find HFS+ superblock
Apr 26 22:23:09 einstein kernel: [  241.588544] qnx4: no qnx4 filesystem (no root dir).
Apr 26 22:23:09 einstein kernel: [  241.591674] ufs: You didn't specify the type of your ufs filesystem
Apr 26 22:23:09 einstein kernel: [  241.591674]
Apr 26 22:23:09 einstein kernel: [  241.591674] mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...
Apr 26 22:23:09 einstein kernel: [  241.591674]
Apr 26 22:23:09 einstein kernel: [  241.591674] >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old
Apr 26 22:23:09 einstein kernel: [  241.600856] ufs: ufs_fill_super(): bad magic number
Apr 26 22:23:09 einstein kernel: [  241.606171] hfs: can't find a HFS filesystem on dev dm-3
Apr 26 22:23:09 einstein os-prober: debug: running /usr/lib/os-probes/50mounted-tests on /dev/mapper/einstein-vm_newton
Apr 26 22:23:09 einstein kernel: [  241.846353] EXT4-fs (dm-2): VFS: Can't find ext4 filesystem
Apr 26 22:23:09 einstein kernel: [  241.850142] EXT4-fs (dm-2): VFS: Can't find ext4 filesystem
Apr 26 22:23:09 einstein kernel: [  241.853832] EXT4-fs (dm-2): VFS: Can't find ext4 filesystem
Apr 26 22:23:09 einstein kernel: [  241.857134] FAT-fs (dm-2): invalid media value (0x00)
Apr 26 22:23:09 einstein kernel: [  241.858765] FAT-fs (dm-2): Can't find a valid FAT filesystem
Apr 26 22:23:09 einstein kernel: [  241.861070] XFS (dm-2): Invalid superblock magic number
Apr 26 22:23:09 einstein kernel: [  241.886194] FAT-fs (dm-2): invalid media value (0x00)
Apr 26 22:23:09 einstein kernel: [  241.887769] FAT-fs (dm-2): Can't find a valid FAT filesystem
Apr 26 22:23:09 einstein kernel: [  241.889624] ntfs: (device dm-2): read_ntfs_boot_sector(): Primary boot sector is invalid.
Apr 26 22:23:09 einstein kernel: [  241.892358] ntfs: (device dm-2): read_ntfs_boot_sector(): Mount option errors=recover not used. Aborting without trying to recover.
Apr 26 22:23:09 einstein kernel: [  241.896362] ntfs: (device dm-2): ntfs_fill_super(): Not an NTFS volume.
Apr 26 22:23:09 einstein kernel: [  241.900402] VFS: Can't find a Minix filesystem V1 | V2 | V3 on device dm-2.
Apr 26 22:23:09 einstein kernel: [  241.902457] hfsplus: unable to find HFS+ superblock
Apr 26 22:23:09 einstein kernel: [  241.904229] qnx4: no qnx4 filesystem (no root dir).
Apr 26 22:23:09 einstein kernel: [  241.907104] ufs: You didn't specify the type of your ufs filesystem
Apr 26 22:23:09 einstein kernel: [  241.907104]
Apr 26 22:23:09 einstein kernel: [  241.907104] mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...
Apr 26 22:23:09 einstein kernel: [  241.907104]
Apr 26 22:23:09 einstein kernel: [  241.907104] >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old
Apr 26 22:23:09 einstein kernel: [  241.916196] ufs: ufs_fill_super(): bad magic number
Apr 26 22:23:09 einstein kernel: [  241.921421] hfs: can't find a HFS filesystem on dev dm-2

Was sagt mir das? Hinterher funktioniert alles, aber was sagen mir diese Warnungen bzw. Fehler?

//EDIT: Ach hat sich doch schon mehr oder weniger erledigt :facepalm: Habe rausgefunden, dass "dm-2" ein LVM-Volume ist, welches an eine VM durchgereicht wird. Warum das unter Ubuntu 14.04 nie solche Fehler ausgespuckt hat, hier aber schon - kA. Die VM muss eh platt gemacht werden, vielleicht erledigt sich dann auch schon das Problem.