使用parted 创建一个大于2T的分区

原文链接：http://www.cnblogs.com/liuxing0007/p/11151979.html 1、查看现有分区 parted -l fdisk   -l     2、对/dev/sdb分一个区 [root@test ~]# parted /dev/sdb   (parted) mkpart  【因为没有修改磁盘格式所以报错】                                                         Error: /dev/sdb: unrecognised disk label   (parted) mklabel     //修改磁盘格式                                                        New disk label type? gpt                                                  (parted) p                                                                Model: VMware, VMware Virtual S (scsi) Disk /dev/sdb: 21.5GB Sector size (logical/physical): 512B/512B Partition Table: gpt   Number  Start  End  Size  File system  Name  Flags   (parted) mkpart  Partition name?  []? primary       //定义一个分区名字                                             File system type?  [ext2]? ext4                                                                 Start? 0                                                                  End? 20G                                                                  Warning: The resulting partition is not properly aligned for best performance. Ignore/Cancel? I                                                          (parted) P                                                                Model: VMware, VMware Virtual S (scsi) Disk /dev/sdb: 21.5GB Sector size (logical/physical): 512B/512B Partition Table: gpt   Number  Start   End     Size    File system  Name  Flags  1      17.4kB  20.0GB  20.0GB               primary   (parted) quit  #退出分区模式，不需要输入保存的按钮，退出来它会自动保存分区表信息。 在parted分区后，系统不需要重启也生效     3、对/dev/sdb进行分区，分多个区 (parted) p                                                                Model: VMware, VMware Virtual S (scsi) Disk /dev/sdb: 21.5GB Sector size (logical/physical): 512B/512B Partition Table: gpt   Number  Start  End  Size  File system  Name  Flags   (parted) mkpart                                                           Partition name?  []? test1                                                File system type?  [ext2]? ext4                                           Start? 0                                                                  End? 5G                                                                   Warning: The resulting partition is not properly aligned for best performance. Ignore/Cancel? I                                                          (parted) mkpart Partition name?  []? test2                                                File system type?  [ext2]? ext4                                           Start? 5G                                                                 End? 10G                                                                  (parted) mkpart Partition name?  []? test3 File system type?  [ext2]? ext4                                           Start? 10G                                                                End? 15G                                                                  (parted) mkpart                                                           Partition name?  []? test4                                                File system type?  [ext2]? ext4                                           Start? 15G End? 100%                                                                  (parted) P                                                                Model: VMware, VMware Virtual S (scsi) Disk /dev/sdb: 21.5GB Sector size (logical/physical): 512B/512B Partition Table: gpt   Number  Start   End     Size    File system  Name   Flags  1      17.4kB  5000MB  5000MB               test1  2      5001MB  10.0GB  5000MB               test2  3      10.0GB  15.0GB  5000MB               test3  4      15.0GB  20.0GB  5000MB               test4   (parted) quit      4、格式化分区并挂载   [root@test ~]# mkfs -t ext4 /dev/sdb1 [root@test ~]# mkdir /root/testu [root@test ~]# mount -t ext4 /dev/sdb1 /root/testu/ [root@test ~]# df -Th Filesystem                  Type   Size  Used Avail Use% Mounted on /dev/mapper/vg_test-lv_root ext4    75G  3.6G   68G   6% / tmpfs                       tmpfs  2.0G   72K  2.0G   1% /dev/shm /dev/sda1                   ext4   485M   37M  423M   9% /boot /dev/sdb1                   ext4   4.6G  138M  4.3G   4% /root/testu     5、打印并且删除分区 (parted) p                                                                Model: VMware, VMware Virtual S (scsi) Disk /dev/sdb: 21.5GB Sector size (logical/physical): 512B/512B Partition Table: gpt   Number  Start   End     Size    File system  Name  Flags  1      17.4kB  20.0GB  20.0GB               pa   (parted) rm   1    (parted) p                                                                Model: VMware, VMware Virtual S (scsi) Disk /dev/sdb: 21.5GB Sector size (logical/physical): 512B/512B Partition Table: gpt   Number  Start  End  Size  File system  Name  Flags       6、 linux中有两种分区方式：MBR和GPT   MBR: （Master Boot Record）主引导记录，是传统的分区机制，应用于绝大多数使用BIOS的PC设备，使用32位表示扇区数。   特点：      MBR支持32位和64位系统      MBR支持分区数量有限      MBR只支持不超过2T的硬盘，超过2T的硬盘将只能用2T空间（有第三方解决方法）     GPT:GUID（Globals Unique Identifiers）Partition Table 全局唯一标识，是一个较新的分区机制，解决了MBR很多缺点。    使用128位UUID 表示磁盘和分区，GPT分区表自动备份在头和尾两份，并有CRC校验位。 支持超过2T的磁盘（64位寻址空间），使用64位，支持128个分区，支持8Z（512Byte/block ）64Z（4096Byte/block）。fdisk最大只能建立2TB大小的分区，创建一个大于2TB的分区使用parted，gdisk分区工具    特点：         向后兼容MBR        必须在支持UEFI的硬件上才能使用（Intel提出，用于取代BIOS）        必须使用64位系统        Mac、Linux系统都能支持GPT分区格式        Windows 7/8 64bit、Windows Server 2008 64bit支持GPT

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