/ (99% used) has reached the PANIC level (95%) Filesystem 1024-blocks Used Available Capacity Mounted on /dev/md2 474046864 441999344 7897540 99% / tmpfs 5120 0 5120 0% /run/lock tmpfs 16338396 0 16338396 0% /sys/fs/cgroup /dev/md1 498532 340433 131936 73% /boot