# du -m --max-depth 1 /
705	/lib
du: cannot access ‘/proc/22437/task/22437/fd/4’: No such file or directory
du: cannot access ‘/proc/22437/task/22437/fdinfo/4’: No such file or directory
du: cannot access ‘/proc/22437/fd/4’: No such file or directory
du: cannot access ‘/proc/22437/fdinfo/4’: No such file or directory
0	/proc
0	/sys
452	/opt
1	/run
1312	/home
2554	/usr
1	/srv
280	/boot
9	/etc
11	/sbin
1	/tmp
1	/backup
1	/lib64
4218	/var
1	/lost+found
1	/media
1	/root
1	/dev
1	/mnt
10	/bin
9548	/