CentOS 7 Space Expansion notes

A CentOS 7 machine root partition in a VMware virtual machine does not have enough space to expand.

1. Modify the size of the hard disk by editing the virtual machine settings first

2. Df-h Viewing partition space

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3. Fdisk-l viewing the number of partitions
   

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FDISK/DEV/SDA
P View the number of partitions I see two/dev/sda1/dev/sda2 .
n Add a new partition
p Partition Type We select Primary partition
Area code 3 because it's already been used.
Enter default start sector
Enter default end sector
t Modify the partition type
Select partition 3
8e modified to lvm8e is LVM
W write partition Table

Reboot restart

5.fdisk-l Viewing partitions

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6. Capacity expansion

LVM into LVM management LVM>Pvcreate/dev/sda3 This is the LVM that is required to initialize the partition that was just>vgextend Centos/dev/sda3 Add the initialized partition to the virtual volume group CentOS (volume and volume group commands can be vgdisplay) LVM>Vgdisplay- vLVM>Lvextend- L+2559/dev/mapper/centos-rootextend the capacity of an existing volume2559is the size LVM for PE free viewed through Vgdisplay>lvsView LV Capacity then you'll see that Root gets bigger. LVM>Quit quitting

7. True expansion of file systems

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CentOS 6 will be used under Resize2fs/dev/mapper/centos-root

8. View

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This article is from "Freshwater crab" blog, please be sure to keep this source http://adamcrab.blog.51cto.com/842470/1769943

CentOS 7 Space Expansion notes