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How to partition drives larger than 2TB in size

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  • How to partition drives larger than 2TB in size

    You will need to use parted to get this done.


    Linux Create 3TB partition size

    To create a partition start GNU parted as follows:
    # parted /dev/sdb

    GNU Parted 2.3
    Using /dev/sdb
    Welcome to GNU Parted! Type 'help' to view a list of commands.

    Creates a new GPT disklabel i.e. partition table:

    (parted) mklabel gpt

    Sample outputs:

    Warning: The existing disk label on /dev/sdb will be destroyed and all data on this disk will be lost. Do you want to continue?
    Yes/No? yes

    Next, set the default unit to TB, enter:

    (parted) unit TB

    To create a 3TB partition size, enter:

    (parted) mkpart primary 0 0


    (parted) mkpart primary 0.00TB 3.00TB

    To print the current partitions, enter:

    (parted) print

    Sample outputs:

    Model: ATA ST33000651AS (scsi)
    Disk /dev/sdb: 3.00TB
    Sector size (logical/physical): 512B/512B
    Partition Table: gpt
    Number Start End Size File system Name Flags
    1 0.00TB 3.00TB 3.00TB ext4 primary

    Quit and save the changes, enter:

    (parted) quit

    Sample outputs:

    Information: You may need to update /etc/fstab.

    Use the mkfs.ext3 or mkfs.ext4 command to format the file system, enter:
    # mkfs.ext3 /dev/sdb1
    # mkfs.ext4 /dev/sdb1
    Sample outputs:

    mkfs.ext4 /dev/sdb1
    mke2fs 1.41.12 (17-May-2010)
    Filesystem label=
    OS type: Linux
    Block size=4096 (log=2)
    Fragment size=4096 (log=2)
    Stride=0 blocks, Stripe width=0 blocks
    183148544 inodes, 732566272 blocks
    36628313 blocks (5.00%) reserved for the super user
    First data block=0
    Maximum filesystem blocks=4294967296
    22357 block groups
    32768 blocks per group, 32768 fragments per group
    8192 inodes per group
    Superblock backups stored on blocks:
    32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
    4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
    102400000, 214990848, 512000000, 550731776, 644972544
    Writing inode tables: done
    Creating journal (32768 blocks): done
    Writing superblocks and filesystem accounting information: done
    This filesystem will be automatically checked every 31 mounts or
    180 days, whichever comes first. Use tune2fs -c or -i to override.
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