[Day8] Commands involved in using LVM to expand

Table of Contents

1. lsof command

Second, df and du commands

df -i

df -T

lsblk

Three, mount

Fourth, /etc/fstab detailed ​edit

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1. lsof command

lsof corresponding device name

Check which files are occupied by the current device

Second, df and du commands

du -sh * (count all files)

du -sh . (statistics under the current path)

The df command displays the mounted filesystems

df -i

View file system inode number usage

df -T

View file system type

lsblk

Three, mount

Four. /etc/fstab detailed explanation

First column	disk device file or device UUID
Second column	Directory to mount to
Second column	Format of the disk file system
Column 4	Parameters of the file system Defaults The colleague has the settings of default parameters such as rw, suid, dev, exec, auto, nouser, async, etc.
Column 5	Can it be used by the dump backup command 0 represents not to do a dump backup 1 represents a daily dump operation p> 2 represents a dump operation on an indeterminate date
Column 6	Whether to check the sector In the process of booting, the system will use fsck to check whether our system is complete (clean) by default. 0 Do not check 1 The earliest check (generally the root directory will be selected) 2 Inspection after Level 1 inspection is complete