我将 Ubuntu 20.0.4 LTS 安装到全新的三星 250GB NVMe 上，并在安装过程中使用了所有默认设置。一切似乎都很好，但我没有看到它只在驱动器上显示 ~100GB。如何扩展分区
$ df -h
Filesystem Size Used Avail Use% Mounted on
udev 16G 0 16G 0% /dev
tmpfs 3.1G 1.5M 3.1G 1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv 98G 26G 68G 28% /
tmpfs 16G 0 16G 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 16G 0 16G 0% /sys/fs/cgroup
/dev/nvme0n1p2 1.5G 111M 1.3G 8% /boot
/dev/loop0 56M 56M 0 100% /snap/core18/2128
/dev/nvme0n1p1 1.1G 5.3M 1.1G 1% /boot/efi
/dev/loop1 62M 62M 0 100% /snap/core20/1328
/dev/loop2 71M 71M 0 100% /snap/lxd/21029
/dev/loop3 68M 68M 0 100% /snap/lxd/21835
/dev/loop4 56M 56M 0 100% /snap/core18/2284
/dev/loop5 44M 44M 0 100% /snap/snapd/149
sudo lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT,LABEL
NAME FSTYPE SIZE MOUNTPOINT LABEL
loop0 squashfs 55.4M /snap/core18/2128
loop1 squashfs 61.9M /snap/core20/1328
loop2 squashfs 70.3M /snap/lxd/21029
loop3 squashfs 67.2M /snap/lxd/21835
loop4 squashfs 55.5M /snap/core18/2284
loop5 squashfs 43.6M /snap/snapd/14978
nvme0n1 232.9G
├─nvme0n1p1 vfat 1.1G /boot/efi
├─nvme0n1p2 ext4 1.5G /boot
└─nvme0n1p3 LVM2_member 230.3G
└─ubuntu--vg-ubuntu--lv ext4 100G /