This is a fresh install with out HDhomerun
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
osmc@osmc:~$ df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 368M 0 368M 0% /dev
tmpfs 373M 15M 359M 4% /run
/dev/mmcblk0p2 29G 7.9G 20G 29% /
tmpfs 373M 0 373M 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 373M 0 373M 0% /sys/fs/cgroup
/dev/mmcblk0p1 316M 26M 290M 9% /boot
tmpfs 75M 0 75M 0% /run/user/1000
But after a while it does fill up