系统管理:parted

http://www.turbolinux.com.cn/turbo/wiki/doku.php?id=%E7%B3%BB%E7%BB%9F%E7%AE%A1%E7%90%86:parted

 

1. 什么是parted

parted是一个磁盘分区管理管理工具,它比fdisk更加灵活，功能也更丰富，同时还支持GUID分区表(GUID Partition Table), 这在IA64平台上管理磁盘时非常有用。
2. parted的作用

parted同时支持交互模式和非交互模式. 它除了能够进行分区的添加,删除等常见操作外,还可以移动分区, 制作文件系统, 调整文件系统大小, 复制文件系统.
3. 使用parted

删除一个分区

命令格式：
parted device rm partition

实例: 删除分区/dev/sda1
[root@dev3-28 ~]# parted /dev/sda print
Model: MAXTOR ATLAS10K5_73SCA (scsi)
Disk /dev/sda: 73.6GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start   End     Size    Type      File system  Flags
1      32.3kB  10.0GB  10.0GB  primary   ext3             
4      12.1GB  73.6GB  61.5GB  extended                   
5      12.1GB  20.4GB  8390MB  logical   ext3             
6      20.4GB  32.1GB  11.6GB  logical   ext3             
7      32.1GB  73.6GB  41.5GB  logical   ext3             

Information: Don't forget to update /etc/fstab, if necessary.            

[root@dev3-28 ~]# parted /dev/sda rm 1
Information: Don't forget to update /etc/fstab, if necessary.            

[root@dev3-28 ~]# parted /dev/sda print

Model: MAXTOR ATLAS10K5_73SCA (scsi)
Disk /dev/sda: 73.6GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start   End     Size    Type      File system  Flags
4      12.1GB  73.6GB  61.5GB  extended                   
5      12.1GB  20.4GB  8390MB  logical   ext3             
6      20.4GB  32.1GB  11.6GB  logical   ext3             
7      32.1GB  73.6GB  41.5GB  logical   ext3             

Information: Don't forget to update /etc/fstab, if necessary.       

添加一个分区

命令格式：
parted device mkpart part-type [fs-type] start end

实例: 添加一个大小为3GB的主分区
[root@dev3-28 ~]# parted /dev/sda mkpart primary 32.3kB 3GB        
[root@dev3-28 ~]# parted /dev/sda print -s                       

Model: MAXTOR ATLAS10K5_73SCA (scsi)
Disk /dev/sda: 73.6GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start   End     Size    Type      File system  Flags
1      32.3kB  3002MB  3002MB  primary   ext3             
4      12.1GB  73.6GB  61.5GB  extended                   
5      12.1GB  20.4GB  8390MB  logical   ext3             
6      20.4GB  32.1GB  11.6GB  logical   ext3             
7      32.1GB  73.6GB  41.5GB  logical   ext3            

制作文件系统

命令格式:
parted device mkfs

实例: 对刚刚添加的分区制作文件系统。
[root@dev3-28 ~]# parted /dev/sda mkfs     
Warning: The existing file system will be destroyed and all data on the partition will be lost. Do you want to continue?
Yes/No? y                                                                
Partition number? 1                                                      
File system?  [ext2]?                                                    
Information: Don't forget to update /etc/fstab, if necessary.            

[root@dev3-28 ~]# parted /dev/sda print -s     

Model: MAXTOR ATLAS10K5_73SCA (scsi)
Disk /dev/sda: 73.6GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start   End     Size    Type      File system  Flags
1      32.3kB  3002MB  3002MB  primary   ext2             
4      12.1GB  73.6GB  61.5GB  extended                   
5      12.1GB  20.4GB  8390MB  logical   ext3             
6      20.4GB  32.1GB  11.6GB  logical   ext3             
7      32.1GB  73.6GB  41.5GB  logical   ext3

调整文件系统大小

命令格式:
parted device resize partition start end

实例: 将分区/dev/sda1的大小增加到5GB。
[root@dev3-28 ~]# parted /dev/sda resize 1 32.3kB 5GB
Warning: You should reinstall your boot loader before rebooting.  Read section 4 of the Parted User documentation for more
information.
Information: Don't forget to update /etc/fstab, if necessary.            

[root@dev3-28 ~]# parted /dev/sda print -s                

Model: MAXTOR ATLAS10K5_73SCA (scsi)
Disk /dev/sda: 73.6GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start   End     Size    Type      File system  Flags
1      32.3kB  5001MB  5001MB  primary   ext2             
4      12.1GB  73.6GB  61.5GB  extended                   
5      12.1GB  20.4GB  8390MB  logical   ext3             
6      20.4GB  32.1GB  11.6GB  logical   ext3             
7      32.1GB  73.6GB  41.5GB  logical   ext3

移动分区

命令格式:
parted device move partition start end

实例: 移动分区/dev/sda1
[root@dev3-28 ~]# parted /dev/sda move 1 5001MB
End?  [10.0GB]?                                                          
Warning: You should reinstall your boot loader before rebooting.  Read section 4 of the Parted User documentation for more
information.
Information: Don't forget to update /etc/fstab, if necessary.            

[root@dev3-28 ~]# parted /dev/sda print -s            

Model: MAXTOR ATLAS10K5_73SCA (scsi)
Disk /dev/sda: 73.6GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start   End     Size    Type      File system  Flags
1      5001MB  10.0GB  5001MB  primary   ext2             
4      12.1GB  73.6GB  61.5GB  extended                   
5      12.1GB  20.4GB  8390MB  logical   ext3             
6      20.4GB  32.1GB  11.6GB  logical   ext3             
7      32.1GB  73.6GB  41.5GB  logical   ext3  

注意: 不同于fdisk命令的使用w功能来确认来写入分区表信息, parted命令执行后立即生效,因此输入时需要谨慎.