1、查看现有分区
parted -l
fdisk -l
2、对/dev/sdb分一个区
[[email protected] ~]# 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
[[email protected] ~]# mkfs -t ext4 /dev/sdb1
[[email protected] ~]# mkdir /root/testu
[[email protected] ~]# mount -t ext4 /dev/sdb1 /root/testu/
[[email protected] ~]# 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
原文地址:https://www.cnblogs.com/liuxing0007/p/11151979.html