$ sudo fdisk -l
Disk /dev/loop0: 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/loop1: 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/loop2: 29.9 MiB, 31334400 bytes, 61200 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: 14.99 GiB, 16072572928 bytes, 31391744 sectors
Disk model: IDSDM
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: C1D9C783-625F-47BA-8BA0-8B78019F9DCC
Device Start End Sectors Size Type
/dev/sda1 2048 1050623 1048576 512M EFI System
/dev/sda2 1050624 3147775 2097152 1G Linux filesystem
/dev/sda3 3147776 31389695 28241920 13.5G Linux filesystem
Disk /dev/mapper/ubuntu--vg-ubuntu--lv: 13.48 GiB, 14457765888 bytes, 28237824 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
I connect to a blackbox machine my friend gave me, so I want to check disk information.
Does the above command say there is only 1 physical disk with space only 14.99G? I hardly believe nowadays there is any disk with 14.99G space.
What is "/dev/mapper/ubuntu--vg--root"? says ubuntu--vg-ubuntu--lv is something managed by lvm2.
Does it mean this blackbox machine has a second disk whose size is again amazing small at 13.48G?
ubuntu--vg-ubuntu--lvis a logical volume and consumes all of/dev/sda3. That system is probably itching for some proper storage ... – Jan 26 '21 at 13:57sudo lsblkcan give you a nice tree of storage to show you what is where. – grifferz Jan 28 '21 at 23:39