Parted 分区
Posted y_zilong
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1、查看硬盘信息
[root@5gxx-2-32 ~]# fdisk -l #可以看到/dev/vdb 4T
Disk /dev/vda: 42.9 GB, 42949672960 bytes, 83886080 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x000a4f38
Device Boot Start End Blocks Id System
/dev/vda1 * 2048 83886046 41941999+ 83 Linux
Disk /dev/vdb: 4295.0 GB, 4294967296000 bytes, 8388608000 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes2、建立磁盘标签
#因为parted命令只能针对gpt格式的磁盘进行操作，所以这里必须将新建的磁盘标签格式设为gpt。
[root@5gxx-2-32 ~]# parted /dev/vdb
GNU Parted 3.1
Using /dev/vdb
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) mklabel gpt #新建磁盘标签类型为GPT
(parted) p #使用print对磁盘进行查看，可以查看磁盘没有进行分区
Model: Virtio Block Device (virtblk)
Disk /dev/vdb: 4295GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
(parted) 3、创建分区，并分配合适的大小
分区
命令格式:
mkpart PART-TYPE [FS-TYPE] START END
PART-TYPE(分区类型)
primary
主分区
logical
逻辑分区
extended
扩展分区
FS-TYPE(文件系统类型)
ext4
ext3
ext2
xfs
其他......
START
设定磁盘分区起始点；可以为0，numberMiB/GiB/TiB；
0
设定当前分区的起始点为磁盘的第一个扇区；
1G
设定当前分区的起始点为磁盘的1G处开始；
END
设定磁盘分区结束点；
-1
设定当前分区的结束点为磁盘的最后一个扇区；
10G
设定当前分区的结束点为磁盘的10G处；
#使用mkpart primary 0% n%创建主分区，n为要分的分区占整个磁盘的百分比.（mkpart extended创建扩展分区）.
#例如我这里想要把这个8T的硬盘分成三块，其中前两块分别占2T，最后一块占4T,则可以写为:
#mkpart primary 0% 25%
#mkpart primary 26% 50%
#mkpart primary 51% 100%
(parted) mkpart primary xfs 0 2145
Warning: The resulting partition is not properly aligned for best performance.
Ignore/Cancel? c #取消
(parted) p
Model: Virtio Block Device (virtblk)
Disk /dev/vdb: 4295GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
(parted) mkpart primary 0% 50% #分成两个一样大小的分区
(parted) mkpart primary 51% 100%
(parted) p
Model: Virtio Block Device (virtblk)
Disk /dev/vdb: 4295GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 1049kB 2147GB 2147GB primary
2 2190GB 4295GB 2105GB primary
(parted) quit
Information: You may need to update /etc/fstab.4、查看分区并分区格式化挂载
[root@5gxx-2-32 ~]# fdisk -l
Disk /dev/vda: 42.9 GB, 42949672960 bytes, 83886080 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x000a4f38
Device Boot Start End Blocks Id System
/dev/vda1 * 2048 83886046 41941999+ 83 Linux
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.
Disk /dev/vdb: 4295.0 GB, 4294967296000 bytes, 8388608000 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: gpt
Disk identifier: 3AEA9541-28C4-4740-B96D-32055555E3DD
# Start End Size Type Name
1 2048 4194303999 2T Microsoft basic primary
2 4278190080 8388605951 1.9T Microsoft basic primary[root@5gxx-2-32 ~]# mkfs.ext4 /dev/vdb1
[root@5gxx-2-32 ~]# mkfs.ext4 /dev/vdb2[root@5gxx-2-32 ~]# df -Th
Filesystem Type Size Used Avail Use% Mounted on
/dev/vda1 ext4 40G 2.2G 36G 6% /
devtmpfs devtmpfs 7.6G 0 7.6G 0% /dev
tmpfs tmpfs 7.6G 0 7.6G 0% /dev/shm
tmpfs tmpfs 7.6G 41M 7.6G 1% /run
tmpfs tmpfs 7.6G 0 7.6G 0% /sys/fs/cgroup
tmpfs tmpfs 1.6G 0 1.6G 0% /run/user/1040
[root@5gxx-2-32 ~]# mkdir -p /data/data1
[root@5gxx-2-32 ~]# mkdir -p /data/data2
[root@5gxx-2-32 ~]# mount /dev/vdb1 /data/data1
[root@5gxx-2-32 ~]# mount /dev/vdb2 /data/data2
[root@5gxx-2-32 ~]# df -Th
Filesystem Type Size Used Avail Use% Mounted on
/dev/vda1 ext4 40G 2.2G 36G 6% /
devtmpfs devtmpfs 7.6G 0 7.6G 0% /dev
tmpfs tmpfs 7.6G 0 7.6G 0% /dev/shm
tmpfs tmpfs 7.6G 41M 7.6G 1% /run
tmpfs tmpfs 7.6G 0 7.6G 0% /sys/fs/cgroup
tmpfs tmpfs 1.6G 0 1.6G 0% /run/user/1040
/dev/vdb1 ext4 2.0T 81M 1.9T 1% /data/data1
/dev/vdb2 ext4 1.9T 81M 1.8T 1% /data/data2
[root@5gxx-2-32 ~]#echo '/dev/vdb1 /data/data1 ext4 defaults,_netdev 0 0' >>/etc/fstab
[root@5gxx-2-32 ~]#echo '/dev/vdb2 /data/data2 ext4 defaults,_netdev 0 0' >>/etc/fstab以上是关于Parted 分区的主要内容，如果未能解决你的问题，请参考以下文章