问在fstab中使用什么UUID来挂载LVM ubuntu-vg根

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# root at /dev/sdb1
UUID=a3434e96-3be4-4f4b-b8ca-751b36f0fd22 /     ext4 errors=remount-ro 0       1
# swap at /dev/sdb1/
UUID=62ebffc9-81a6-4441-b1ee-e4862158150e none  swap sw                0       0

root@system:~# lvs -v
LV   VG        #Seg Attr       LSize   Maj Min KMaj KMin Pool Origin Data%  Meta%  Move Cpy%Sync Log         Convert LV UUID                                LProfile
root ubuntu-vg    1 mwi-aom--- 214.84g  -1  -1  253    3                                100.00   [root_mlog]         pYS9i4-txAG-RUZ7-YGXe-iiLZ-29CW-WujyJr         
swap ubuntu-vg    3 -wi-ao----  16.64g  -1  -1  253    4                                                             NRw2y4-mj0A-DVFz-CuHu-PXn5-hxRu-xtKy6G    

root@system:~# vgs -v
VG        Attr   Ext   #PV #LV #SN VSize VFree   VG UUID                                 VProfile
ubuntu-vg wz--n- 4.00m   3   2   0 1.58t 958.85g 0ihnWz-KuDC-8GcZ-j9Ls-dbG4-URKZ-wJ4DNV         

/dev/mapper/ubuntu--vg-root / ext4 errors=remount-ro 0 1
/dev/mapper/ubuntu--vg-swap none swap sw 0 0

sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs    (rw,nosuid,relatime,size=8124076k,nr_inodes=2031019,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=1630556k,mode=755)
/dev/mapper/ubuntu--vg-root on / type ext4 (rw,relatime,errors=remount-ro,data=ordered) [root]
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=27,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=1428)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
mqueue on /dev/mqueue type mqueue (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
configfs on /sys/kernel/config type configfs (rw,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
/var/lib/snapd/snaps/dark-knight_1.snap on /snap/dark-knight/1 type squashfs (ro,nodev,relatime)
/var/lib/snapd/snaps/core_4206.snap on /snap/core/4206 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/cumulonimbus_18.snap on /snap/cumulonimbus/18 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core_4017.snap on /snap/core/4017 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core_4110.snap on /snap/core/4110 type squashfs (ro,nodev,relatime,x-gdu.hide)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,relatime)
tmpfs on /run/snapd/ns type tmpfs (rw,nosuid,noexec,relatime,size=1630556k,mode=755)
nsfs on /run/snapd/ns/dark-knight.mnt type nsfs (rw)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=1630552k,mode=700,uid=1000,gid=1000)
gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000)
gvfsd-fuse on /home/nathaniel/.gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=0,group_id=0)
tracefs on /sys/kernel/debug/tracing type tracefs (rw,relatime)