命令简介
parted 命令用于创立，查看，删除和批改磁盘分区。它是一个磁盘分区和分区大小调整工具。这个命令算是对fdisk命令的一个补充，因为如果磁盘大小大于2TB就无奈应用fdisk命令进行分区操作了。
语法格局
parted [options] [device [command [options...]...]]选项阐明
-a #为新创建的分区设置对齐形式-h #显示帮忙信息-i #交互式模式-s #脚本模式-v #显示版本号-l #列出所有块设施上的分区布局-m #显示机器可解析的输入利用举例
虚拟机上没有大于2TB的硬盘，所以用10GB来代替。
[root@centos7 ~]# fdisk -lDisk /dev/sda: 21.5 GB, 21474836480 bytes, 41943040 sectorsUnits = sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk label type: dosDisk identifier: 0x0003116d Device Boot Start End Blocks Id System/dev/sda1 * 2048 2099199 1048576 83 Linux/dev/sda2 2099200 41943039 19921920 8e Linux LVM#新加的10GB磁盘Disk /dev/sdb: 10.7 GB, 10737418240 bytes, 20971520 sectorsUnits = sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytes分区举例
[root@centos7 ~]# parted /dev/sdbGNU Parted 3.1Using /dev/sdbWelcome to GNU Parted! Type 'help' to view a list of commands.(parted) help #帮忙信息 align-check TYPE N check partition N for TYPE(min|opt) alignment help [COMMAND] print general help, or help on COMMAND mklabel,mktable LABEL-TYPE create a new disklabel (partition table) mkpart PART-TYPE [FS-TYPE] START END make a partition 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 resizepart NUMBER END resize partition NUMBER rm NUMBER delete partition NUMBER select DEVICE choose the device to edit disk_set FLAG STATE change the FLAG on selected device disk_toggle [FLAG] toggle the state of FLAG on selected device 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(parted) mklabel gpt #批改磁盘分区构造为gptWarning: 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 (parted) mkpart #执行分区 Partition name? []? primary #主分区 File system type? [ext2]? ext4 #文件系统类型 Start? 1 End? 10000 (parted) p #打印分区表 Model: VMware, VMware Virtual S (scsi)Disk /dev/sdb: 10.7GBSector size (logical/physical): 512B/512BPartition Table: gptDisk Flags: Number Start End Size File system Name Flags 1 1049kB 10.0GB 9999MB primary(parted) q Information: You may need to update /etc/fstab.格式化并挂载
[root@centos7 ~]# mkfs.ext4 /dev/sdbmke2fs 1.42.9 (28-Dec-2013)/dev/sdb is entire device, not just one partition!Proceed anyway? (y,n) yFilesystem label=OS type: LinuxBlock size=4096 (log=2)Fragment size=4096 (log=2)Stride=0 blocks, Stripe width=0 blocks655360 inodes, 2621440 blocks131072 blocks (5.00%) reserved for the super userFirst data block=0Maximum filesystem blocks=215167795280 block groups32768 blocks per group, 32768 fragments per group8192 inodes per groupSuperblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632Allocating group tables: done Writing inode tables: done Creating journal (32768 blocks): done[root@centos7 ~]# df -hFilesystem Size Used Avail Use% Mounted ondevtmpfs 475M 0 475M 0% /devtmpfs 487M 0 487M 0% /dev/shmtmpfs 487M 7.7M 479M 2% /runtmpfs 487M 0 487M 0% /sys/fs/cgroup/dev/mapper/centos-root 17G 2.0G 16G 12% //dev/sda1 1014M 167M 848M 17% /boottmpfs 98M 0 98M 0% /run/user/0[root@centos7 ~]# mount /dev/sdb /opt/[root@centos7 ~]# df -hFilesystem Size Used Avail Use% Mounted ondevtmpfs 475M 0 475M 0% /devtmpfs 487M 0 487M 0% /dev/shmtmpfs 487M 7.7M 479M 2% /runtmpfs 487M 0 487M 0% /sys/fs/cgroup/dev/mapper/centos-root 17G 2.0G 16G 12% //dev/sda1 1014M 167M 848M 17% /boottmpfs 98M 0 98M 0% /run/user/0/dev/sdb 9.8G 37M 9.2G 1% /opt所以，parted 命令个别用于磁盘空间大于2TB大小的磁盘分区。