【メモ】
df -h Filesystem Size Used Avail Use% Mounted on /dev/vda3 18G 12G 5.5G 68% / tmpfs 939M 0 939M 0% /dev/shm /dev/vda1 94M 84M 4.6M 95% /boot yum install yum-utils package-cleanup --oldkernels --count=2 Removed: kernel.x86_64 0:2.6.32-431.el6 kernel-devel.x86_64 0:2.6.32-431.el6 df -h Filesystem Size Used Avail Use% Mounted on /dev/vda3 18G 12G 5.6G 67% / tmpfs 939M 0 939M 0% /dev/shm /dev/vda1 94M 61M 28M 69% /boot