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parted 命令

2016-08-05 by dongnan

举个栗子

使用 centos 7 新版本 parted 命令更改磁盘分区的类型。

# 输入命令
parted /dev/xvda


# parted版本
(parted) version
GNU Parted 3.1
Copyright (C) 1998 - 2006 Free Software Foundation, Inc.
This program is free software, covered by the GNU General Public License.
#...省略

更改分区类型

子命令 t 用于更改分区类型

(parted) t
Partition number? 5 # 选择第5个分区
Flag to Invert? lvm # 类型为LVM

验证分区类型

Xen Virtual Block Device 表明是xenserver虚拟机磁盘。

(parted) print
Model: Xen Virtual Block Device (xvd)
Disk /dev/xvda: 53.7GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:

Number  Start   End     Size    Type      File system  Flags
 1      1049kB  525MB   524MB   primary   xfs          boot
 2      525MB   10.7GB  10.2GB  primary                lvm
 3      10.7GB  53.7GB  42.9GB  extended               lba
 5      10.7GB  53.7GB  42.9GB  logical                lvm

可以看到，第5个分区的类型为 lvm 标志。

帮助

在 parted 命令界面中输入 help 。

(parted) help
  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
  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

帮助子集

(parted) help t
toggle [NUMBER [FLAG]]  toggle the state of FLAG on partition NUMBER

    NUMBER is the partition number used by Linux.  On MS-DOS disk labels, 
    the primary partitions number from 1 to 4, logical partitions from 5 onwards.
    FLAG is one of: 
    boot, root, swap, hidden, raid, lvm, lba, hp-service, palo, prep, msftres, bios_grub, atvrecv, diag, legacy_boot

参考

使用parted调整磁盘分区大小

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