Deve ser assim:
total 108
drwxr-xr-x 2 root root 4096 Aug 8 19:16 bin
drwxr-xr-x 5 root root 4096 Aug 10 08:53 boot
drwxr-xr-x 4 root root 4096 May 17 09:39 BootInfo
drwxr-xr-x 4 root root 4096 May 17 09:26 boot-sav
drwxr-xr-x 2 root root 4096 May 12 18:54 cdrom
drwxr-xr-x 18 root root 4600 Aug 12 19:18 dev
drwxr-xr-x 182 root root 12288 Aug 12 08:29 etc
drwxr-xr-x 4 root root 4096 Jul 26 11:33 home
lrwxrwxrwx 1 root root 33 Aug 10 08:52 initrd.img -> boot/initrd.img-3.13.0-33-generic
lrwxrwxrwx 1 root root 33 Jul 10 19:32 initrd.img.old -> boot/initrd.img-3.13.0-32-generic
drwxr-xr-x 27 root root 4096 Aug 5 19:34 lib
drwxr-xr-x 2 root root 4096 Aug 5 19:33 lib32
drwxr-xr-x 2 root root 4096 Aug 5 19:34 lib64
drwx------ 2 root root 16384 May 12 18:49 lost+found
drwxr-xr-x 3 root root 4096 May 12 20:59 media
drwxr-xr-x 2 root root 4096 Apr 19 2012 mnt
drwxr-xr-x 10 root root 4096 Aug 1 10:38 opt
dr-xr-xr-x 418 root root 0 Aug 12 08:26 proc
drwx------ 12 root root 4096 Aug 11 21:35 root
drwxr-xr-x 29 root root 920 Aug 12 11:08 run
drwxr-xr-x 2 root root 12288 Aug 8 19:15 sbin
drwxr-xr-x 2 root root 4096 Aug 20 2013 srv
dr-xr-xr-x 13 root root 0 Aug 12 08:26 sys
drwxrwxrwt 15 root root 4096 Aug 12 22:09 tmp
drwxr-xr-x 13 root root 4096 Aug 5 16:32 usr
drwxr-xr-x 15 root root 4096 May 30 14:53 var
lrwxrwxrwx 1 root root 30 Aug 10 08:52 vmlinuz -> boot/vmlinuz-3.13.0-33-generic
lrwxrwxrwx 1 root root 30 Jul 10 19:32 vmlinuz.old -> boot/vmlinuz-3.13.0-32-generic
Eu não tenho, até onde eu sei, modificá-los de qualquer forma.