Linux hard disk format, partition, mount, unmount, delete partition
After the Linux 2.6 kernel, linux will create the corresponding device file under /dev/ for the identified hardware device. For example:
sda means the first SCSI hard disk
hda means the first IDE hard disk (that is, connected to the Master port of the first IDE interface)
scd0 represents the first USB optical drive.
0. Check the mount status
df -hl
It can be seen that the system only mounts 40G /dev/vda1 in the / directory, which are assigned to different folders
1. View hard disk information
fdisk -l
There is a 20G /dev/vdb unpartitioned
2. Create partitions
fdisk /dev/vdb
Enter in ordern , p , 1 , 回车 , 回车 , wq , 回车
n : create a new partition
p : select primary partition
1 : partition number
wq: save and exit
3. View disk information
fdisk -l
see partitioned disks/dev/vdb1
4. Format the partition
mkfs.ext4 /dev/vdb1
If you want to format to other formats, you can also
5. Write the partition information to fstab, and set it to mount automatically at startup
vim /etc/fstabwrite /dev/xvdb1 /data ext4 defaults 0 0save and exit
6. Mount the partition
mount -a
7. View the partition mount status
8. Unmount
umount /dev/vdb1
9. Delete partition
fdisk /dev/vdb
enterd , wq
d : delete partition
10. Check again
Found that it has become an unpartitioned state