Expand the Linux Root partition (forward expansion)

Expand the Linux Root partition (extended forward)-Linux Enterprise Application-Linux server application information. For details, see the following. List the commands:

View the mount partitions in linux:

Mount

View partition size and usage

Df-h

View information displayed in 1 K partition segments

Df

View detailed partition information

Fdisk-l/dev/sda [records detailed partition information, including block numbers]

Start with partitioning. For example, if there are too many/partitions, And the/opt partition is not enough.

/Dev/sda6 --->/20G

/Dev/sda7 -->/opt 1G

Start Division:

Modify system partition

Umount/dev/sda6/dev/sda7

E2fsck-f/dev/sda6

Resize2fs/dev/sda6 15G

Reboot

Modify the physical partition of a disk

Fdisk/dev/sda

P records the starting position of the partition 30294

D

6

P

N input: 30294

+ 15 GB

P

N

+ 2G [set the partition size. The capacity of the new partition must be greater than or equal to the original/dev/sda7]

Now we have multiple partitions, sda8.

P

X

F

R

P

W

Copy partition sda8 <原来的sda7> To sda7 <新生成的硬盘空间> :

Dd if =/dev/sda8 of =/dev/sda7

Read 392048 segments

Output 392048 segments

Mount/dev/sda7/mnt/tmp

Ls/mnt/tmp [the original files should all be in]

Now we will delete sda8 and extend sda7 backward.