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sam@linux-selma:~> mount
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)                                                                                                              
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)                                                                                                               
devtmpfs on /dev type devtmpfs (rw,nosuid,size=1596048k,nr_inodes=399012,mode=755)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,nodev,mode=755)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd)
pstore on /sys/fs/pstore type pstore (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/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/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/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
/dev/sdb2 on / type btrfs (rw,relatime,space_cache,subvolid=259,subvol=/@/.snapshots/1/snapshot)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=30,pgrp=1,timeout=0,minproto=5,maxproto=5,direct)
mqueue on /dev/mqueue type mqueue (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
/dev/sdb2 on /var/lib/mariadb type btrfs (rw,relatime,space_cache,subvolid=271,subvol=/@/var/lib/mariadb)
/dev/sdb2 on /.snapshots type btrfs (rw,relatime,space_cache,subvolid=258,subvol=/@/.snapshots)
/dev/sdb2 on /var/cache type btrfs (rw,relatime,space_cache,subvolid=266,subvol=/@/var/cache)
/dev/sdb2 on /opt type btrfs (rw,relatime,space_cache,subvolid=262,subvol=/@/opt)
/dev/sdb2 on /var/spool type btrfs (rw,relatime,space_cache,subvolid=277,subvol=/@/var/spool)
/dev/sdb2 on /var/log type btrfs (rw,relatime,space_cache,subvolid=275,subvol=/@/var/log)
/dev/sdb2 on /tmp type btrfs (rw,relatime,space_cache,subvolid=264,subvol=/@/tmp)
/dev/sdb2 on /var/crash type btrfs (rw,relatime,space_cache,subvolid=267,subvol=/@/var/crash)
/dev/sdb2 on /var/lib/machines type btrfs (rw,relatime,space_cache,subvolid=269,subvol=/@/var/lib/machines)
/dev/sdb2 on /var/opt type btrfs (rw,relatime,space_cache,subvolid=276,subvol=/@/var/opt)
/dev/sdb2 on /var/lib/pgsql type btrfs (rw,relatime,space_cache,subvolid=274,subvol=/@/var/lib/pgsql)
/dev/sdb2 on /var/lib/libvirt/images type btrfs (rw,relatime,space_cache,subvolid=268,subvol=/@/var/lib/libvirt/images)
/dev/sdb2 on /var/lib/mailman type btrfs (rw,relatime,space_cache,subvolid=270,subvol=/@/var/lib/mailman)
/dev/sdb2 on /srv type btrfs (rw,relatime,space_cache,subvolid=263,subvol=/@/srv)
/dev/sdb2 on /var/lib/named type btrfs (rw,relatime,space_cache,subvolid=273,subvol=/@/var/lib/named)
/dev/sdb2 on /boot/grub2/x86_64-efi type btrfs (rw,relatime,space_cache,subvolid=261,subvol=/@/boot/grub2/x86_64-efi)
/dev/sdb2 on /var/lib/mysql type btrfs (rw,relatime,space_cache,subvolid=272,subvol=/@/var/lib/mysql)
/dev/sdb2 on /var/tmp type btrfs (rw,relatime,space_cache,subvolid=278,subvol=/@/var/tmp)
/dev/sdb2 on /usr/local type btrfs (rw,relatime,space_cache,subvolid=265,subvol=/@/usr/local)
/dev/sdb2 on /boot/grub2/i386-pc type btrfs (rw,relatime,space_cache,subvolid=260,subvol=/@/boot/grub2/i386-pc)
/dev/sdb3 on /home type xfs (rw,relatime,attr2,inode64,noquota)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=320756k,mode=700,uid=1000,gid=100)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=1000,group_id=100)