一、Vm虚拟机下Linux扩展原有磁盘空间,详细步骤如下:



需注意以下几点: linux只能扩展磁盘容量而不能减小, 所填写的容量为总容量,即包含已分区的磁盘, 扩展容量时不能有快照哟,大家可以先把快照删除掉。
2.启动Linux,查看系统分区,并创建分区sda3,命令如下:红色字体命令,#后为注释:
[root@localhost~]#fdisk -l
Disk /dev/sda:32.2GB,32212254720 bytes
255heads,63sectors/track,3916cylinders
Units=cylindersof16065*512=8225280 bytes
DeviceBoot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 1566 12474472+ 8e Linux LVM
#我的电脑有2个分区-sda1 sda2
[root@localhost~]#fdisk /dev/sda
Thenumberofcylindersforthisdiskissetto3916.
Thereisnothingwrongwiththat,butthisislargerthan1024,
andcouldincertainsetupscauseproblemswith:
1)softwarethatrunsatboottime(e.g.,oldversionsofLILO)
2)bootingandpartitioningsoftwarefromotherOSs
(e.g.,DOSFDISK,OS/2FDISK)
Command(mforhelp):m
Commandaction
a toggle a bootable flag
b edit bsd disk label
c toggle the dos compatibility flag
d delete a partition
l list known partition types
m print this menu
n add a new partition
o create a new empty DOS partition table
p print the partition table
q quit without saving changes
s create a new empty Sun disklabel
t change apartition's system id
u change display/entry units
v verify the partition table
w write table to disk and exit
x extra functionality (expertsonly)




本文详细介绍如何在Vm虚拟机下的Linux环境中扩展原有的磁盘空间。文章首先强调了扩容前需注意的事项,如磁盘只能扩展不能减小、确保没有快照等。随后通过具体步骤演示如何使用fdisk命令来查看系统分区并创建新的分区。

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