[root@bootstrap ~]# ls -l /sys/block/
total 0
lrwxrwxrwx 1 root root 0 2013-12-10 12:31 cciss!c0d0 -> ../devices/pci0000:00/0000:00:03.0/0000:0a:00.0/0000:0b:08.0/cciss0/c0d0/block/cciss!c0d0
lrwxrwxrwx 1 root root 0 2013-12-10 19:31 loop0 -> ../devices/virtual/block/loop0
lrwxrwxrwx 1 root root 0 2013-12-10 19:31 loop1 -> ../devices/virtual/block/loop1
lrwxrwxrwx 1 root root 0 2013-12-10 19:31 loop2 -> ../devices/virtual/block/loop2
lrwxrwxrwx 1 root root 0 2013-12-10 19:31 loop3 -> ../devices/virtual/block/loop3
lrwxrwxrwx 1 root root 0 2013-12-10 19:31 loop4 -> ../devices/virtual/block/loop4
lrwxrwxrwx 1 root root 0 2013-12-10 19:31 loop5 -> ../devices/virtual/block/loop5
lrwxrwxrwx 1 root root 0 2013-12-10 19:31 loop6 -> ../devices/virtual/block/loop6
lrwxrwxrwx 1 root root 0 2013-12-10 19:31 loop7 -> ../devices/virtual/block/loop7
lrwxrwxrwx 1 root root 0 2013-12-10 12:31 ram0 -> ../devices/virtual/block/ram0
lrwxrwxrwx 1 root root 0 2013-12-10 12:31 ram1 -> ../devices/virtual/block/ram1
lrwxrwxrwx 1 root root 0 2013-12-10 12:31 ram10 -> ../devices/virtual/block/ram10
lrwxrwxrwx 1 root root 0 2013-12-10 12:31 ram11 -> ../devices/virtual/block/ram11
lrwxrwxrwx 1 root root 0 2013-12-10 12:31 ram12 -> ../devices/virtual/block/ram12
lrwxrwxrwx 1 root root 0 2013-12-10 12:31 ram13 -> ../devices/virtual/block/ram13
lrwxrwxrwx 1 root root 0 2013-12-10 12:31 ram14 -> ../devices/virtual/block/ram14
lrwxrwxrwx 1 root root 0 2013-12-10 12:31 ram15 -> ../devices/virtual/block/ram15
lrwxrwxrwx 1 root root 0 2013-12-10 12:31 ram2 -> ../devices/virtual/block/ram2
lrwxrwxrwx 1 root root 0 2013-12-10 12:31 ram3 -> ../devices/virtual/block/ram3
lrwxrwxrwx 1 root root 0 2013-12-10 12:31 ram4 -> ../devices/virtual/block/ram4
lrwxrwxrwx 1 root root 0 2013-12-10 12:31 ram5 -> ../devices/virtual/block/ram5
lrwxrwxrwx 1 root root 0 2013-12-10 12:31 ram6 -> ../devices/virtual/block/ram6
lrwxrwxrwx 1 root root 0 2013-12-10 12:31 ram7 -> ../devices/virtual/block/ram7
lrwxrwxrwx 1 root root 0 2013-12-10 12:31 ram8 -> ../devices/virtual/block/ram8
lrwxrwxrwx 1 root root 0 2013-12-10 12:31 ram9 -> ../devices/virtual/block/ram9
[root@bootstrap ~]#