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Thread: Can't mount raid after reboot

  1. #1
    Join Date
    May 2010
    Location
    Sweden
    Beans
    36
    Distro
    Ubuntu

    Can't mount raid after reboot

    So during the night my new Ubuntu server has been busy building the RAID 6 array with 8 2TB disks.
    It went well no errors, so I saved it to mdadm.config and fstab. Mounted it, I did see it with df -h.
    I had to restart to get the backup disk visible, so I did, now all I see is this:
    mount /dev/md0 /mnt/storage/
    mount: /mnt/storage: can't read superblock on /dev/md0

    What to do?

  2. #2
    Join Date
    Nov 2009
    Location
    Mataro, Spain
    Beans
    14,208
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Can't mount raid after reboot

    Try to get the details if the raid is assembled first. What is the output of:
    Code:
    cat /proc/mdstat
    sudo mdadm -D /dev/md0
    Darko.
    -----------------------------------------------------------------------
    Ubuntu 14.04 LTS 64bit & Windows 10 Pro 64bit

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