uname -a Linux test 4.0.0-040000rc5-generic #201503230035 SMP Mon Mar 23 04:36:26 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
cat /sys/block/vda/queue/scheduler none
uname -a -generic #201503230035 SMP Mon Mar 23 04:36:26 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
Linux test 4.0.0-040000rc5
cat /sys/block/ vda/queue/ scheduler
none