How to mount a 4TB hard drive in CentOS 6.X

One task at hand is to make a local backup of some of the company's important data. Use Seagate's 4TB hard drive.

For a 4TB hard disk, the following warning appears if you use the partition directly with Fdisk:

Warning:gpt (GUID Partition Table) detected on '/DEV/SDE '! The util Fdisk doesn ' t support GPT. Use GNU Parted.

and the result of partitioning is that only 2TB is left.

So there is a problem: How to mount a 4TB hard disk on the system, only 1 zones.

The parted command can divide a single partition that is larger than 2T in GPT format, or partition a normal MBR partition, and the FDISK command cannot be partitioned for partitions larger than 2T, so you cannot see the parted partition in GPT format with FDISK.

The need here is to use a tool: parted.

To install the parted tool:

Yum Install-y parted

Command parameters for the parted tool:

Usage: parted [OPTION] ... [DEVICE [COMMAND [PARAMETERS] ...] ...]
Apply COMMANDs with PARAMETERS to DEVICE. If no COMMAND (s) are given, run in
interactive mode.

Options:
  -h, --help display this help message
  -l, --list lists partition layout on all block devices
  -m, --machine displays machine parseable output
  -s, --script never prompt the user
  -v, --version display version
  -a, --align = [none | cyl | min | opt] alignment for new partitions

command:
  align-check TYPE N check partition N for TYPE (min | opt)
        alignment
  check NUMBER do a simple check on the file system
  cp [FROM-DEVICE] FROM-NUMBER TO-NUMBER copy file system to another partition
  help [COMMAND] print general help, or help on
        COMMAND
  mklabel, mktable LABEL-TYPE create a new disklabel (partition
        table)
  mkfs NUMBER FS-TYPE make a FS-TYPE file system on
        partition NUMBER
  mkpart PART-TYPE [FS-TYPE] START END make a partition
  mkpartfs PART-TYPE FS-TYPE START END make a partition with a file system
  move NUMBER START END move partition NUMBER
  name NUMBER NAME name partition NUMBER as NAME
  print [devices | free | list, all | NUMBER] display the partition table,
        available devices, free space, all found partitions, or a particular
        partition
  quit exit program
  rescue START END rescue a lost partition near START
        and END
  resize NUMBER START END resize partition NUMBER and its file
        system
  rm NUMBER delete partition NUMBER
  select DEVICE choose the device to edit
  set NUMBER FLAG STATE change the FLAG on partition NUMBER
  toggle [NUMBER [FLAG]] toggle the state of FLAG on partition
        NUMBER
  unit UNIT set the default unit to UNIT
  version display the version number and
        copyright information of GNU Parted

Chinese analysis:

How to use: parted [options] [device [command [options ...] ...]]

    options

    -h display help information

    -l show partitions on all block devices

    device

    Which block device to operate on, or use the first block device if not specified

    command [options ...]

    check partition

    Do a simple check on the partition

    cp [source-device] source dest

    Copy the source partition on the source-device device to the dest partition of the current device

    mklabel label-type

    Create new partition table type, label-type can be: "bsd", "dvh", "gpt", "loop", "mac", "msdos", "pc98", or "sun" msdos format, if the partition is larger than 2T, you need to choose the partition table in gpt format.

    mkfs partition fs-type

    Create a fs-type file system on the partition. The fs-type can be: "fat16", "fat32", "ext2", "linux-swap", "reiserfs". Note that the ext3 file system is not supported, only Partition first and then format with proprietary commands.

    mkpart part-type [fs-type] start end

    Create a partition of part-type type. Part-type can be: "primary", "logical", or "extended" If you specify fs-type, format the partition while creating it. start and end refer to the starting position of the partition. The default unit is M.

    eg: mkpart primary 0 -1 0 indicates the beginning of the partition -1 indicates the end of the partition Means dividing the entire hard disk space as the primary partition

    mkpartfs part-type fs-type start end

    Create a fs-type part-type partition. It is not recommended. It is best to use mk2fs to format the partition.

    name partition name

    Set a name for the partition. This setting can only be used in partition tables of Mac, PC98, and GPT types. The name is enclosed in quotation marks.

    select device

    When there are multiple hard disks on the machine, choose which hard disk to operate

    resize partition start end

    Resize partition

    rm partition

    Delete a partition

    rescue start end

    Rescue a partition between stat and end

    unit unit

    In the previous partition, the unit of the value in the default partition is M. This parameter Kay changes the default unit, "kB", "MB", "GB", "TB"

    move partition start end

    Move partition

    print display partition table information quit exit parted 

After learning the parted knowledge, to complete our task:

1. Use the command to enter interactive mode and view the current hard disk partition information:

Parted/dev/sdep

2, delete the current partition, and see the results here (in order to write this tutorial, I have just partitioned the hard drive and deleted the ^~^!! ）

RM 1p

3. Format the hard disk as GPT

Mklabel GPT

4. Partition the disk and divide the entire hard drive into a single area.

Mkpart Primary 0-1ignore

Parted execution Mkpart Primary is directly partitioned (and Fdisk needs to be saved)

5. Exit parted

Quit

6. After the partition is finished, the partition work is started:

Mkfs.ext4/dev/sde1

7. Mount the hard drive

Mount/dev/sde1/var/xxx

It's finally done.

Scattered flowers!!!!

Welcome to scan the following QR code follow my public number: Codemanship (code)

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.

How to mount a 4TB hard drive in CentOS 6.X