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(Ubuntu 20.04)

lsblk -f shows:

NAME        FSTYPE     LABEL             UUID                                 FSAVAIL FSUSE% MOUNTPOINT
---
nvme0n1                                                                                      
├─nvme0n1p1 ntfs       Recovery          A6F8B146F8B11611                                    
├─nvme0n1p2 vfat                         B6B1-83C2                              62,5M    34% /boot/efi
├─nvme0n1p3                                                                                  
├─nvme0n1p4 ntfs                         EA9CC7CA9CC7900D                       77,9G    60% /media/az/EA9CC7CA9CC7900D
├─nvme0n1p5 ntfs                         8EFE5BB7FE5B9675                                    
├─nvme0n1p6 ext4                         30c2e908-17b9-47a2-b68a-5a0df3f62f8e  513,5G    23% /
└─nvme0n1p7 swap                         7c366bb0-c008-4285-8a67-1acae6e25d2d                [SWAP]

It doesn't show the size for some of these partitions, e.g. nvme0n1p1, nvme0n1p3, nvme0n1p5, nvme0n1p7. Maybe because it couldn't extract that information.

But getting the absolute size of the partition should always work.

So I tried lsblk --output NAME,FSTYPE,LABEL,UUID,FSSIZE,FSAVAIL,FSUSE%,MOUNTPOINT:

NAME        FSTYPE     LABEL             UUID                                 FSSIZE FSAVAIL FSUSE% MOUNTPOINT
...
nvme0n1                                                                                             
├─nvme0n1p1 ntfs       Recovery          A6F8B146F8B11611                                           
├─nvme0n1p2 vfat                         B6B1-83C2                               95M   62,5M    34% /boot/efi
├─nvme0n1p3                                                                                         
├─nvme0n1p4 ntfs                         EA9CC7CA9CC7900D                     194,3G   77,9G    60% /media/az/EA9CC7CA9CC7900D
├─nvme0n1p5 ntfs                         8EFE5BB7FE5B9675                                           
├─nvme0n1p6 ext4                         30c2e908-17b9-47a2-b68a-5a0df3f62f8e   714G  513,5G    23% /
└─nvme0n1p7 swap                         7c366bb0-c008-4285-8a67-1acae6e25d2d                       [SWAP]

But it still does not show that. Why? How can I make lsblk show this information?

sudo fdisk -l /dev/nvme0n1 in comparison gets the information:

Disk /dev/nvme0n1: 931,53 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: Samsung SSD 970 EVO Plus 1TB            
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: 4B824D75-DA39-42FF-815F-87DF7ADB2401

Device              Start        End    Sectors   Size Type
/dev/nvme0n1p1       2048     923647     921600   450M Windows recovery environment
/dev/nvme0n1p2     923648    1126399     202752    99M EFI System
/dev/nvme0n1p3    1126400    1159167      32768    16M Microsoft reserved
/dev/nvme0n1p4    1159168  408538890  407379723 194,3G Microsoft basic data
/dev/nvme0n1p5  408539136  409597951    1058816   517M Windows recovery environment
/dev/nvme0n1p6  409597952 1933035519 1523437568 726,4G Linux filesystem
/dev/nvme0n1p7 1933035520 1948659711   15624192   7,5G Linux swap

(Btw, related questions, as I was searching for a nice tool to print information about all my disks: here, here)

0

I just found out: FSSIZE was the wrong flag. I needed just SIZE instead.

lsblk --output NAME,FSTYPE,LABEL,UUID,SIZE,FSAVAIL,FSUSE%,MOUNTPOINT gives:

NAME        FSTYPE     LABEL             UUID                                   SIZE FSAVAIL FSUSE% MOUNTPOINT
...
nvme0n1                                                                       931,5G                
├─nvme0n1p1 ntfs       Recovery          A6F8B146F8B11611                       450M                
├─nvme0n1p2 vfat                         B6B1-83C2                               99M   62,5M    34% /boot/efi
├─nvme0n1p3                                                                      16M                
├─nvme0n1p4 ntfs                         EA9CC7CA9CC7900D                     194,3G   77,9G    60% /media/az/EA9CC7CA9CC7900D
├─nvme0n1p5 ntfs                         8EFE5BB7FE5B9675                       517M                
├─nvme0n1p6 ext4                         30c2e908-17b9-47a2-b68a-5a0df3f62f8e 726,4G  513,5G    23% /
└─nvme0n1p7 swap                         7c366bb0-c008-4285-8a67-1acae6e25d2d   7,5G                [SWAP]

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