查看已经挂载的

df -h

~$ df -h
Filesystem                         Size  Used Avail Use% Mounted on
udev                               1.2G     0  1.2G   0% /dev
tmpfs                              249M  1.3M  248M   1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv   19G  7.0G   11G  40% /
tmpfs                              1.3G     0  1.3G   0% /dev/shm
tmpfs                              5.0M     0  5.0M   0% /run/lock
tmpfs                              1.3G     0  1.3G   0% /sys/fs/cgroup
/dev/sda2                          976M  108M  802M  12% /boot
/dev/loop2                          44M   44M     0 100% /snap/snapd/14978
/dev/loop3                          72M   72M     0 100% /snap/lxd/16099
/dev/loop5                          62M   62M     0 100% /snap/core20/1376
/dev/loop0                          56M   56M     0 100% /snap/core18/2284
/dev/loop1                          68M   68M     0 100% /snap/lxd/22526
/dev/loop4                          55M   55M     0 100% /snap/core18/1880
tmpfs                              249M     0  249M   0% /run/user/1000
tmpfs                              249M     0  249M   0% /run/user/0

查看所有盘挂载情况

lsblk

~# lsblk
NAME                      MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT

sda                         8:0    0 838.4G  0 disk 
└─sda1                      8:1    0    50G  0 part 
sdb                         8:16   0 838.4G  0 disk 
└─sdb1                      8:17   0    50G  0 part 
sdc                         8:32   0 557.8G  0 disk 
├─sdc1                      8:33   0     1M  0 part 
├─sdc2                      8:34   0     1G  0 part /boot
└─sdc3                      8:35   0 556.8G  0 part 
  └─ubuntu--vg-ubuntu--lv 253:2    0 556.8G  0 lvm  /

fdisk -l

sudo fdisk -l
Disk /dev/loop0: 55.52 MiB, 58204160 bytes, 113680 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop1: 67.94 MiB, 71221248 bytes, 139104 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop2: 43.6 MiB, 45703168 bytes, 89264 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop3: 71.28 MiB, 74735616 bytes, 145968 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop4: 54.98 MiB, 57626624 bytes, 112552 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop5: 61.92 MiB, 64901120 bytes, 126760 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes




Disk /dev/sda: 20 GiB, 21474836480 bytes, 41943040 sectors
Disk model: VBOX HARDDISK   
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 12FC11F2-58EA-4C70-AA71-119BFEBCB00E

Device       Start      End  Sectors Size Type
/dev/sda1     2048     4095     2048   1M BIOS boot
/dev/sda2     4096  2101247  2097152   1G Linux filesystem
/dev/sda3  2101248 41940991 39839744  19G Linux filesystem


Disk /dev/sdb: 20 GiB, 21474836480 bytes, 41943040 sectors
Disk model: VBOX HARDDISK   
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/sdc: 20 GiB, 21474836480 bytes, 41943040 sectors
Disk model: VBOX HARDDISK   
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/sdd: 40 GiB, 42949672960 bytes, 83886080 sectors
Disk model: VBOX HARDDISK   
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/mapper/ceph--7b6d46ac--d5a8--43b8--9e7b--05bf70953cd8-osd--block--2650532a--8c23--4b80--aa86--53f652138283: 19.102 GiB, 21470642176 bytes, 41934848 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/mapper/ubuntu--vg-ubuntu--lv: 18.102 GiB, 20396900352 bytes, 39837696 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes