$  sudo lsblk -fs
NAME      FSTYPE   LABEL       UUID                                 FSAVAIL FSUSE% MOUNTPOINT
loop0     squashfs                                                        0   100% /snap/core18/1888
loop1     squashfs                                                        0   100% /snap/lxd/18524
loop2     squashfs                                                        0   100% /snap/core18/1936
loop3     squashfs                                                        0   100% /snap/lxd/18570
loop4     squashfs                                                        0   100% /snap/snapd/10243
loop5     squashfs                                                        0   100% /snap/snapd/10494
sda1      ext4                 7ebd631b-df0d-4956-b9c1-e8859286e4ac
└─sda
mmcblk0p1 vfat     system-boot 0468-A52F                             155.7M    38% /boot/firmware
└─mmcblk0
mmcblk0p2 ext4     writable    5fcce78f-2de3-4805-8ffa-d0f11247d5bb   23.3G    16% /
└─mmcblk0