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2、gdisk命令

使用gdisk劃分磁盤，默認(rèn)劃分為GPT格式的磁盤
[root@linuxidc ~]# gdisk /dev/sdb                                             
GPT fdisk (gdisk) version 0.8.6
Partition table scan:

Command (? for help): n
Partition number (1-128, default 1): 
First sector (34-10485726, default = 2048) or {+-}size{KMGTP}: 
Last sector (2048-10485726, default = 10485726) or {+-}size{KMGTP}: +1G
Current type is 'Linux filesystem'
Hex code or GUID (L to show codes, Enter = 8300): 8e00
Changed type of partition to 'Linux LVM'

Command (? for help): p
Disk /dev/sdb: 10485760 sectors, 5.0 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): DFDD30F8-C2A3-45BE-95B0-37A2CABBCF89
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 10485726
Partitions will be aligned on 2048-sector boundaries
Total free space is 8388541 sectors (4.0 GiB)
Number  Start (sector)    End (sector)  Size      Code  Name
  1            2048        2099199  1024.0 MiB  8E00  Linux LVM

3、parted命令：可以自行選擇劃分格式

parted命令可以將MBR結(jié)構(gòu)修改為GPT結(jié)構(gòu)，但是要慎重，因?yàn)榉謪^(qū)表會(huì)丟失：

[root@linuxidc ~]# parted /dev/sdb
GNU Parted 3.1
Using /dev/sdb
Welcome to GNU Parted! Type 'help' to view a list of commands.
(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

使用mklabel轉(zhuǎn)換分區(qū)類型：

(parted) mklabel                                                         
New disk label type?                                                     
aix    amiga  bsd    dvh    gpt    loop  mac    msdos  pc98  sun   
New disk label type? gpt
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?