通常我們用的比較多的一般都是fdisk工具來進行分區，但是現在由於磁盤越來越廉價，而且磁盤空間越來越大；而fdisk工具他對分區是有大小限制的，它只能劃分小於2T的磁盤。但是現在的磁盤空間很多都已經是遠遠大於2T了，甚至達到2.5T和3T，那要怎麼辦能，有兩個方法，其一是通過卷管理來實現，其二就是通過我們今天談到的Parted工具來實現對GPT磁盤進行分區操作。
GPT格式的磁盤相當於原來MBR磁盤中原來保留4個partition table的4*16個字節,只留第一個16個字節，類似於擴展分區，真正的partitiontable在512字節之後，GPT磁盤沒有四個主分區的限制。
1、 Parted工具詳解：
1.1 進入Parted的方法（在命令行輸入Parted命令即可）
[root@jetsen ~]# partet
Warning: Unable to open/dev/hdc read-write (Read-only file system). /dev/hdc has been
opened read-only.
GNU Parted 1.8.1
Using /dev/hdc
Welcome to GNU Parted! Type'help' to view a list of commands.
(parted)
1.2 獲取parted工具幫助的方法：（只需輸入help即可）
(parted) help
check NUMBER do a simple checkon the file system
cp [FROM-DEVICE] FROM-NUMBER TO-NUMBER copy file system to another partition
help [COMMAND] prints general help,or help on COMMAND
mklabel,mktable LABEL-TYPE create a new disklabel(partition table)
mkfs NUMBER FS-TYPE make a FS-TYPE filesystem on partititon
NUMBER
mkpart PART-TYPE [FS-TYPE] START END make a partition
mkpartfs PART-TYPE FS-TYPE START END make a partition with a file system
move NUMBER START END move partition NUMBER
name NUMBER NAME name partition NUMBERas NAME
print [free|NUMBER|all] display the partition table,a partition, or
all devices
quit exit program
rescue START END rescue a lostpartition near START and END
resize NUMBER START END resize partition NUMBER andits file system
rm NUMBER deletepartition NUMBER
select DEVICE choose the deviceto edit
set NUMBER FLAG STATE change the FLAG onpartition NUMBER
toggle [NUMBER [FLAG]] toggle the state of FLAG onpartition NUMBER
unit UNIT set the defaultunit to UNIT
version displays thecurrent version of GNU Parted
and copyright information
(parted)
或
[root@jetsen ~]# parted--help
Usage: parted [OPTION]...[DEVICE [COMMAND [PARAMETERS]...]...]
Apply COMMANDs withPARAMETERS to DEVICE. If no COMMAND(s)are given, run in
interactive mode.
OPTIONs:
-h, --help displays this help message
-i, --interactive where necessary, prompts for userintervention
-l, --list lists partition tables ofall detected devices
-s, --script never prompts for userintervention
-v, --version displays the version
COMMANDs:
check NUMBER do a simple checkon the file system
cp [FROM-DEVICE] FROM-NUMBER TO-NUMBER copy file system to another partition
help [COMMAND] prints general help,or help on COMMAND
mklabel,mktable LABEL-TYPE create a new disklabel(partition table)
mkfs NUMBER FS-TYPE make a FS-TYPE filesystem on partititon NUMBER
mkpart PART-TYPE [FS-TYPE] START END make a partition
mkpartfs PART-TYPE FS-TYPE START END make a partition with a file system
move NUMBER START END move partition NUMBER
name NUMBER NAME name partition NUMBERas NAME
print [free|NUMBER|all] display the partition table, apartition, or all devices
quit exitprogram
rescue START END rescue a lostpartition near START and END
resize NUMBER START END resize partition NUMBER andits file system
rm NUMBER deletepartition NUMBER
select DEVICE choose the deviceto edit
set NUMBER FLAG STATE change the FLAG onpartition NUMBER
toggle [NUMBER [FLAG]] toggle the state of FLAG onpartition NUMBER
unit UNIT set the defaultunit to UNIT
version displays thecurrent version of GNU Parted and copyright information
[root@jetsen ~]#
1.3 退出parted工具（只需輸入quit即可）
(parted) quit
Information: Don't forget toupdate /etc/fstab, if necessary.
並且同時會提示及時更新/etc/fstab文件