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Thread: Can't mount M2 partition. Known bug?

  1. #1
    Join Date
    Nov 2007
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    158

    Question Can't mount M2 partition. Known bug?

    I have a 500GB M2 drive in my PC that I've split into a 120GB boot partition and a 350GB data partition. The first partition auto-mounts and is fine. The extended/data partition is not only ignored, but "GParted" won't even let me mount it (grayed out.)

    Is this a known bug? If not, is there a (non-destructive) way to fix this?

    TIA

  2. #2
    Join Date
    Jun 2007
    Location
    Arizona U.S.A.
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    5,103

    Re: Can't mount M2 partition. Known bug?

    Do you want the data partition to mount on startup? It has to be formatted, and you would need a correct entry in /etc/fstab to do the mounting. If you did these things, post your /etc/fstab and the output of:
    Code:
     lsblk -o name,fstype,uuid
    to check it.

  3. #3
    Join Date
    Nov 2007
    Location
    London, England
    Beans
    7,325
    Distro
    Xubuntu 20.04 Focal Fossa

    Re: Can't mount M2 partition. Known bug?

    Maybe there is a small misunderstanding here: An extended partition is not a data partition - it is a partition that acts as a container for logical partitions. So your 350G data partition needs to be a logical partition: all logical partitions you create will automatically be placed inside the extended partition (until the extended partition is full, of course).
    Hope this helps.

  4. #4
    Join Date
    Jun 2009
    Location
    SW Forida
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    Hidden!
    Distro
    Ubuntu

    Re: Can't mount M2 partition. Known bug?

    Generally it is better to use gpt partitioning. Then no primary, extended, logical partitions. Just one type, essentially all primary.

    But if BIOS booting you need a 1 or 2MB unformatted partition with bios_grub flag.
    Or if UEFI booting need the ESP - efi system partition 300 to 500MB FAT32 with esp,boot flags.

    GPT Advantages (older 2010 but still valid) see post#2 by srs5694:
    http://ubuntuforums.org/showthread.php?t=1457901 &
    https://wiki.archlinux.org/index.php...antages_of_GPT
    UEFI boot install & repair info - Regularly Updated :
    https://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

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