# lsblk
NAME               MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS
sda                  8:0    0   90G  0 disk 
`-sda1               8:1    0   90G  0 part 
  |-turnkey-root   254:0    0  8.8G  0 lvm  /
  `-turnkey-swap_1 254:1    0    2G  0 lvm  [SWAP]
sdb                  8:16   0 20.8G  0 disk 
`-sdb1               8:17   0  825M  0 part 
# pvresize /dev/sda1
  Physical volume "/dev/sda1" changed
  1 physical volume(s) resized or updated / 0 physical volume(s) not resized
# lvextend -l +100%FREE /dev/turnkey/root
  Size of logical volume turnkey/root changed from <8.80 GiB (2252 extents) to 88.00 GiB (22528 extents).
  Logical volume turnkey/root successfully resized.
# resize2fs /dev/turnkey/root
resize2fs 1.47.0 (5-Feb-2023)
Filesystem at /dev/turnkey/root is mounted on /; on-line resizing required
old_desc_blocks = 2, new_desc_blocks = 11
The filesystem on /dev/turnkey/root is now 23068672 (4k) blocks long.

# df -h
Filesystem                Size  Used Avail Use% Mounted on
udev                      7.7G     0  7.7G   0% /dev
tmpfs                     1.6G  536K  1.6G   1% /run
/dev/mapper/turnkey-root   87G  8.2G   75G  10% /
tmpfs                     7.7G     0  7.7G   0% /dev/shm
tmpfs                     5.0M     0  5.0M   0% /run/lock
tmpfs                     1.6G     0  1.6G   0% /run/user/0