Os resultados foram:
yuri@yuri-Lenovo-G40-80:~$ mount
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=1946944k,nr_inodes=486736,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=395272k,mode=755)
/dev/sda2 on / type ext4 (rw,relatime,errors=remount-ro,stripe=32750,data=ordered)
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,nsdelegate)
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)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
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/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
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)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=24,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=15489)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
mqueue on /dev/mqueue type mqueue (rw,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
configfs on /sys/kernel/config type configfs (rw,relatime)
/var/lib/snapd/snaps/core_4571.snap on /snap/core/4571 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/firefox_85.snap on /snap/firefox/85 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/firefox_71.snap on /snap/firefox/71 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/libreoffice_63.snap on /snap/libreoffice/63 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/retroarch_110.snap on /snap/retroarch/110 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/spotify_13.snap on /snap/spotify/13 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/retroarch_113.snap on /snap/retroarch/113 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/libreoffice_59.snap on /snap/libreoffice/59 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/libreoffice_64.snap on /snap/libreoffice/64 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core_4650.snap on /snap/core/4650 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/canonical-livepatch_39.snap on /snap/canonical-livepatch/39 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/onlyoffice-desktopeditors_21.snap on /snap/onlyoffice-desktopeditors/21 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core_4486.snap on /snap/core/4486 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/canonical-livepatch_41.snap on /snap/canonical-livepatch/41 type squashfs (ro,nodev,relatime,x-gdu.hide)
/dev/sda1 on /boot/efi type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,relatime)
tmpfs on /run/user/103 type tmpfs (rw,nosuid,nodev,relatime,size=395268k,mode=700,uid=103,gid=105)
tmpfs on /run/snapd/ns type tmpfs (rw,nosuid,noexec,relatime,size=395272k,mode=755)
nsfs on /run/snapd/ns/canonical-livepatch.mnt type nsfs (rw)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=395268k,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)
yuri@yuri-Lenovo-G40-80:~$ sudo blkid
[sudo] senha para yuri:
/dev/sda1: UUID="A199-4E80" TYPE="vfat" PARTLABEL="EFI System Partition" PARTUUID="5904e01e-2292-4ef5-8442-6923d80fa9f6"
/dev/sda2: UUID="4a273f60-c897-4d14-ba49-3c7fe576cab8" TYPE="ext4" PARTLABEL="Ubuntu 16.04" PARTUUID="ff80d76f-7944-400d-b6ac-d1ff4215e039"
/dev/sda3: UUID="ec78cf8b-234d-4368-928f-cd10f69fbe77" TYPE="swap" PARTLABEL="Swap" PARTUUID="b1a6808c-f3cd-4dac-828c-253c68648aa4"
/dev/sda5: UUID="1ACAB4DACAB4B2FD" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="774ab22a-460c-4be8-b806-b1e60f205a6d"
/dev/sda6: UUID="CCD49AC1D49AAD68" TYPE="ntfs" PARTUUID="04ae76b4-5cc9-4b7c-a693-60434bf8315c"
/dev/loop0: TYPE="squashfs"
/dev/loop1: TYPE="squashfs"
/dev/loop2: TYPE="squashfs"
/dev/loop3: TYPE="squashfs"
/dev/loop4: TYPE="squashfs"
/dev/loop5: TYPE="squashfs"
/dev/loop6: TYPE="squashfs"
/dev/loop7: TYPE="squashfs"
/dev/sda4: PARTLABEL="Microsoft reserved partition" PARTUUID="068bae0a-edad-4386-9dfb-f4893467db2c"
/dev/loop8: TYPE="squashfs"
/dev/loop9: TYPE="squashfs"
/dev/loop10: TYPE="squashfs"
/dev/loop11: TYPE="squashfs"
/dev/loop12: TYPE="squashfs"
/dev/loop13: TYPE="squashfs"
yuri@yuri-Lenovo-G40-80:~$ cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda2 during installation
UUID=4a273f60-c897-4d14-ba49-3c7fe576cab8 / ext4 errors=remount-ro 0 1
# /boot/efi was on /dev/sda1 during installation
#UUID=A199-4E80 /boot/efi vfat umask=0077 0 1
# swap was on /dev/sda3 during installation
UUID=a2ab5bcc-f8f1-424a-ae70-2442e834de8d none swap sw 0 0
UUID=A199-4E80 /boot/efi vfat defaults 0 1
yuri@yuri-Lenovo-G40-80:~$