当前位置 博文首页 > 宝山的博客的博客：如何将硬盘分区成GPT格式
MBR是Master Boot Record的简称，也就是主引导记录，是位于磁盘最前边的一段引 导（Loader）代码，主要用来引导操作系统的加载与启动特点：
- MBR支持最大2TB磁盘，它无法处理大于2TB容量的磁盘
- 只支持最多4个主分区。若想要更多分区，需要创建扩展分区，并在其中创建逻辑分区
GPT磁盘是指使用GUID分区表的磁盘，GUID磁盘分区表（GUID Partition Table，缩写：GPT）其含义为“全局唯一标识磁盘分区表”，是一个实体硬盘的分区表的结构布局的标准
特点：
- GPT对磁盘大小没有限制
- 最多可以创建128个分区
在企业真实环境中，通常一台服务器有多块硬盘，整个硬盘容量为10T，需要基于GTP格式对10T硬盘进行分区，操作步骤如下：
[root@localhost ~]# which parted
/usr/sbin/parted 这里安装的有，我们直接使用
[root@localhost ~]#
[root@localhost ~]# yum -y install parted 如果没有，需要安装parted 命令
parted -s /dev/sdb mklabel gpt 设置分区类型为gpt格式；
mkfs.ext3 /dev/sdb 基于Ext3文件系统类型格式化；
mount /dev/sdb /data/ 挂载/dev/sdb设备至/data/目录。
parted 直接进入
select /dev/sdb 选择/dev/sdb磁盘
mklabel gpt 格式类型为gpt
mkpart primary 0 -1 将整块磁盘分一个分区
print 打印刚分区的磁盘信息
quit 退出
mkfs.ext3 /dev/sdb1 格式化磁盘
moun /dev/sdb1 /data/ 挂在
[root@localhost ~]# parted
GNU Parted 3.1
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) p #打印磁盘信息
Model: VMware, VMware Virtual S (scsi)
Disk /dev/sda: 32.2GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:
Number Start End Size Type File system Flags
1 1049kB 211MB 210MB primary xfs boot
2 211MB 751MB 540MB primary lvm
3 751MB 32.2GB 31.5GB primary xfs
(parted) select /dev/sdb #选择空的磁盘
Using /dev/sdb
(parted) p
Model: VMware, VMware Virtual S (scsi)
Disk /dev/sdb: 21.5GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:
Number Start End Size Type File system Flags
(parted) mklabel gpt #用GPT分区，支持2T以上的硬盘
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 输入yes
(parted) mkpart primary 0 -1 -1 #将整块磁盘分为1个分区 1表示从最开始分区，也可以用百分比表示
Warning: The resulting partition is not properly aligned for best performance.
Ignore/Cancel?
Ignore/Cancel? ignore
(parted) print #打印刚分好的分区
Model: VMware, VMware Virtual S (scsi)
Disk /dev/sdb: 21.5GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 17.4kB 21.5GB 21.5GB primary
(parted) quit
将磁盘分成多个分区
(parted) mkpart primary
File system type? [ext2]? ext4 #选择文件系统类型
Start? 1024 #分区开始位置
End? 2048 #分区结束位置
Error: Partition(s) 1, 2, 3 on /dev/sda have been written, but we have been unable
to inform the kernel of the change, probably because it/they are in use. As a
result, the old partition(s) will remain in use. You should reboot now before
making further changes.
Ignore/Cancel? ignore
(parted) p
Model: VMware, VMware Virtual S (scsi)
Disk /dev/sda: 32.2GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 1024MB 2048MB 1023MB primary
(parted) mkpart primary
File system type? [ext2]? ext3
Start? 0
End? 1023
Warning: The resulting partition is not properly aligned for best performance.
Ignore/Cancel? ignore
Error: Partition(s) 1, 2, 3 on /dev/sda have been written, but we have been unable
to inform the kernel of the change, probably because it/they are in use. As a
result, the old partition(s) will remain in use. You should reboot now before
making further changes.
Ignore/Cancel? ignore
(parted) p
Model: VMware, VMware Virtual S (scsi)
Disk /dev/sda: 32.2GB
Sector
