Linux 磁盘相关

挂载文件系统 mount

mount [-t fstype] filesystem dir ##mount /dev/sdb /data

卸载文件系统 umount

umount /dev/sdb
umount /data

显示所有块设备 lsblk

root@ubuntu:/var# lsblk
NAME   MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda      8:0    0   20G  0 disk
├─sda1   8:1    0   19G  0 part /
├─sda2   8:2    0    1K  0 part
└─sda5   8:5    0 1022M  0 part [SWAP]
sr0     11:0    1 1024M  0 rom

硬盘分区或者查看磁盘使用情况 fdisk

root@ubuntu:/var# fdisk -l

Device     Boot    Start      End  Sectors  Size Id Type
/dev/sda1  *        2048 39845887 39843840   19G 83 Linux
/dev/sda2       39847934 41940991  2093058 1022M  5 Extended
/dev/sda5       39847936 41940991  2093056 1022M 82 Linux swap / Solaris

查看磁盘空间及挂载点 df

root@ubuntu:/dev# df -h
Filesystem      Size  Used Avail Use% Mounted on
udev            470M     0  470M   0% /dev
tmpfs            98M  5.8M   92M   6% /run
/dev/sda1        19G   11G  7.1G  61% /
tmpfs           488M     0  488M   0% /dev/shm
tmpfs           5.0M     0  5.0M   0% /run/lock
tmpfs           488M     0  488M   0% /sys/fs/cgroup
tmpfs            98M     0   98M   0% /run/user/1000