Linux uses the FDISK command to manipulate the hard disk

Knowledge Points:

Mbr:master boot record master boot recorded on hard disk 0 cylinder 0 head of the first sector, accounting for 512 bytes (3 part of the Master Boot program 446 bytes, hard disk partition table Dpt[disk partion table]16*4 Bytes, partition valid flag 55AA has 2 bytes) , so the maximum manageable 2T hard drive.

Steps to add a hard disk:

Add device--partition--format (create file system)--name--Modify configuration file (/etc/tab)--Create mount point-mount

Fdisk-l #查看磁盘信息

Fdisk/deb/sdb #管理分区

M Get help

P Print Partition Table

N New

P Primary partition E extends #在MBR such that there is only one extended partition in the partitioned table, up to 4 primary partitions

Q exit

D Delete

W Save

Format command:

Mkfs.ext3/dev/sdb1

Mkfs.ext4/dev/sdb2

Mount command: (The U-disk and ISO file mount commands are slightly different to add parameters)

Mount/dev/sdb1/opt/sdb1

View: Df-h

Unload mount point: umount/opt/sdb1 behind and mount points and partitions can be

Disk volume Label: (If you use/dev/sdb to mount, when the server disk data line swap disk may be a problem, the volume label will not)

E2lable/dev/sdb #查看卷标

E2lable/dev/sdb Softdisk #把这个磁盘卷标设置为softdisk

Automatic Mount via volume label:

Modify configuration file: Vim/etc/fstab

The inside can be mounted with UUID, volume label mount, and device name Mount

/dev/sdb/sdb EXT4 Defaults 0 0

Lable=softdisk/sdb EXT4 Defaults 0 0

To mount the partition mount point format Mount option whether to back up (0 no backup) Start check (0 not checked)

Test Mount Success Mount-a (check/etc/fstab configuration is correct)

Other:

Motherboard with Blos and EFI two interface

Linux uses the FDISK command to manipulate the hard disk