Linux Disk Management

Three week fifth session (August 18)

4.5/4.6 disk Formatting

4.7/4.8 Disk Mount

4.9 Adding swap space manually

4.5/4.6 disk Formatting

Cat/etc/filesystem: Viewing Supported file systems

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Mount to view the format of the file system

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Cent7 default is to use the XFS file system.

Cent default use EXT

4.7/4.8 Disk Mount Format:

Mke2fs-t Xfs-b/dev/sdb

-B: Specify the block size

ll look at the true size of the file

Du-sh is looking at the block size that the file occupies.

DU-SB and ll effects are the same.

Blkid is commonly used.

Mkfs.ext4=mke2fs-t EXT4

Mke2fs-i 8192 (8K)

Specify how many bytes correspond to an inode, default 4 blocks, 4 K per block, one 16K

Mount-o specifying the properties of a mount

Ro RW remount

Vi/etc/fstab system start back to read this mount file

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The last column represents whether to check if the partition needs to be detected, set to 1, the other partition is set to 2 1 with priority greater than 2

4.9 Adding swap space manually

DD If=/dev/zero Of=/tmp/newdisk bs=1m count=1000

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Linux Disk Management