[5594060.639024] EXT4-fs (dm-4): VFS: Can't find ext4 filesystem
[5594060.643941] EXT4-fs (dm-4): VFS: Can't find ext4 filesystem
[5594060.648965] EXT4-fs (dm-4): VFS: Can't find ext4 filesystem
[5594060.653992] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on dm-4
[5594060.659005] FAT-fs (dm-4): invalid media value (0x00)
[5594060.660978] FAT-fs (dm-4): Can't find a valid FAT filesystem
[5594060.674766] XFS (dm-4): Invalid superblock magic number
[5594060.682094] FAT-fs (dm-4): invalid media value (0x00)
[5594060.683992] FAT-fs (dm-4): Can't find a valid FAT filesystem
[5594060.693024] VFS: Can't find a Minix filesystem V1 | V2 | V3 on device dm-4.
[5594060.696230] hfsplus: unable to find HFS+ superblock
[5594060.699362] qnx4: no qnx4 filesystem (no root dir).
[5594060.704078] 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
[5594060.730921] ufs: ufs_fill_super(): bad magic number
[5594060.733746] hfs: can't find a HFS filesystem on dev dm-4