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Thread: mkfs.btrfs not working on an unformatted device

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  1. #1
    Join Date
    Nov 2014
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    Pleasant Valley, New York 12569
    Posts
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    mkfs.btrfs not working on an unformatted device

    I read that mkfs.btrfs will work on a device that is not formatted.
    I am on z/linus and I tried to execute mkfs.btrfs on a 3390 mod-9 device.
    This did not work. It will default with the --mixed option.
    It will work if I format and partition the device.
    Code:
    linux140:~ # mkfs.btrfs /dev/dasdb
    SMALL VOLUME: forcing mixed metadata/data groups
    '/dev/dasdb' is too small to make a usable filesystem
    Minimum size for each btrfs device is 16777216.
    Should this work? Are there other required options?

    The Suse 12 system is installed on a 3390 mod-9 device.
    Last edited by mikenash; 25-Jan-2017 at 17:33.

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