Linux/Ubuntu 格式化&挂载磁盘
查看磁盘现状（parted 命令）：
ls /dev/sd*
sudo parted -l | grep Disk | grep sd
sudo parted -l | grep Disk | grep sd |wc -l
sudo parted -lroot@hx2:~# sudo parted -l | grep Disk | grep sd
Error: /dev/sda: unrecognised disk label
Disk /dev/sda: 1000GB
Disk /dev/sdb: 128GB
root@hx2:~# ls /dev/sd*
/dev/sda /dev/sdb /dev/sdb1 /dev/sdb2 /dev/sdb5
root@hx2:~# sudo parted -l | grep Disk | grep sd |wc -l
Error: /dev/sda: unrecognised disk label
2
root@hx2:~# sudo parted -l
Error: /dev/sda: unrecognised disk label
Model: ATA ST1000LM048-2E71 (scsi)
Disk /dev/sda: 1000GB
Sector size (logical/physical): 512B/4096B
Partition Table: unknown
Disk Flags:
Model: ATA PLEXTOR PX-128M6 (scsi)
Disk /dev/sdb: 128GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:
Number Start End Size Type File system Flags
1 1049kB 512MB 511MB primary ext2 boot
2 513MB 128GB 128GB extended
5 513MB 128GB 128GB logical lvm
Model: Linux device-mapper (linear) (dm)
Disk /dev/mapper/hx2--vg-swap_1: 17.1GB
Sector size (logical/physical): 512B/512B
Partition Table: loop
Disk Flags:
Number Start End Size File system Flags
1 0.00B 17.1GB 17.1GB linux-swap(v1)
Model: Linux device-mapper (linear) (dm)
Disk /dev/mapper/hx2--vg-root: 110GB
Sector size (logical/physical): 512B/512B
Partition Table: loop
Disk Flags:
Number Start End Size File system Flags
1 0.00B 110GB 110GB ext4格式化磁盘
mkfs.ext4 -F /dev/sda实操:
root@hx2:~# mkfs.ext4 -F /dev/sda
mke2fs 1.42.13 (17-May-2015)
Creating filesystem with 244190646 4k blocks and 61054976 inodes
Filesystem UUID: 71571e4b-b6b8-4be7-999e-af736bef922f
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
102400000, 214990848
Allocating group tables: 完成
正在写入inode表: 完成
Creating journal (32768 blocks): 完成
Writing superblocks and filesystem accounting information: 完成 创建挂载目录，并挂载磁盘：
mkdir /opt/data
mount /dev/sda /opt/data检查挂载情况：
root@hx2:~# df -h
Filesystem Size Used Avail Use% Mounted on
udev 7.8G 0 7.8G 0% /dev
tmpfs 1.6G 33M 1.6G 3% /run
/dev/mapper/hx2--vg-root 102G 31G 66G 32% /
tmpfs 7.8G 0 7.8G 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 7.8G 0 7.8G 0% /sys/fs/cgroup
/dev/sdb1 472M 211M 237M 48% /boot
tmpfs 1.6G 0 1.6G 0% /run/user/1000
/dev/sda 917G 72M 871G 1% /opt/data搞定！
最后一步：添加挂载信息(服务器重启后自动挂载磁盘)
vim /etc/fstab将以下内容加入fastab:
/dev/sda /opt/data ext4 defaults,noatime,nodiratime 0 0
保存退出，搞定！
