Linux Learning Path 4-Disk Management, file system introduction

(Note: Most of the file system is placed in the next chapter)

Linux Disk Management

Partition Tool fdisk ( supports up to 15 partitions for one hard drive)

Manage subcommands:

N new P display partition T change partition type D delete partition L partition type description W save exit

Q Discard save exit m get help

Note: After the creation is complete, check to see if the kernel has identified the new partition:

# cat/proc/partitions

If it is not recognized, you can use the following command to make the system aware:

CentOS 5 used on: Partprobe [DEVICE], such as PRATPROBE/DEV/SDB1

CentOS 6,7 on use: Partx kpartx

Partx command: Partxdevice

-A DEVICE Activate all partitions

-a-n m:n DEVICE activates the specified

M

M:

: N

Kpartx command:

Kpartx-af DEVICE

File System Management

Linux file systems include: ext2 (non-Datejust), ext3 (Datejust), Ext4 (Datejust ), ReiserFS, XFS, Btrfs (Datejust, up-to-date), swap (swap partition)

Disc File system: iso9660

Windows File system: FAT32 (VFAT), NTFS

Unix:ffs, UFS, JFS, JFS2

Network File System: NFS, CIFS

Cluster file system: OCFS2, GFS2

Distributed File systems: Ceph,moosefs, MogileFS, Hdfs,gfs, Glusterfs

To create a file system:

MKFS ( It is actually called according to the different file types, corresponding to the other formats of the/sbin under MKFS.EXT2,MKFS.EXT4, and so on-T)

MKFS-T type DEVICE

Example: Mkfs–t ext4/dev/sdb1 =mkfs.ext4/dev/sdb1

MKE2FS ( Special Management tool for Ext Series file system):

mke2fs-t {EXT2|EXT3|EXT4} DEVICE

-B block:1024, 2048, 4096

- l ' LABEL ': set the volume label

Example: Mke2fs-t ext4-l ' TEST '-B 2048-m 5/dev/sdb2

Blkid command: Get file system Type, UUID, volume label

Example: Blkid or BLKID/DEV/SDB2

This article is from the "naïve Little Comrade" blog, please be sure to keep this source http://dengxi.blog.51cto.com/4804263/1691236

Linux Learning Path 4-Disk Management, file system introduction