Linux下分区详解之—Parted

通常我们用的比较多的一般都是fdisk工具来进行分区，但是现在由于磁盘越来越廉价，而且磁盘空间越来越大；而fdisk工具他对分区是有大小限制的，它只能划分小于2T的磁盘。但是现在的磁盘空间很多都已经是远远大于2T了，甚至达到2.5T和3T，那要怎么办能，有两个方法，其一是通过卷管理来实现，其二就是通过我们今天谈到的Parted工具来实现对GPT磁盘进行分区操作。GPT格式的磁盘相当于原来MBR磁盘中原来保留4个partition table的4*16个字节,只留第一个16个字节，类似于扩展分区，真正的partitiontable在512字节之后，GPT磁盘没有四个主分区的限制。 1、 Parted工具详解：1.1 进入Parted的方法（在命令行输入Parted命令即可）[root@jetsen ~]# partetWarning: Unable to open/dev/hdc read-write （Read-only file system）. /dev/hdc has beenopened read-only.GNU Parted 1.8.1Using /dev/hdcWelcome to GNU Parted！ Type"help" to view a list of commands.（parted） 1.2 获取parted工具帮助的方法：（只需输入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--helpUsage: parted [OPTION]...[DEVICE [COMMAND [PARAMETERS]...]...]Apply COMMANDs withPARAMETERS to DEVICE. If no COMMAND（s）are given, run ininteractive 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（只需输入quit即可）（parted） quit Information: Don"t forget toupdate /etc/fstab, if necessary. 并且同时会提示及时更新/etc/fstab文件

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