Как увеличить размер?

df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 1.1T 1.4G 1.1T 1% /
tmpfs 34G 0 34G 0% /dev/shm
/dev/sda2 1.1G 79M 925M 8% /boot
/dev/sda5 1.3T 209M 1.2T 1% /home

umount /home
resize2fs /dev/sda5 20G
mount /home

df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 1008G 1.2G 956G 1% /
tmpfs 32G 0 32G 0% /dev/shm
/dev/sda2 1008M 76M 882M 8% /boot
/dev/sda5 20G 172M 19G 1% /home

resize2fs /dev/sda3
resize2fs 1.41.12 (17-May-2010)
The filesystem is already 268435456 blocks long. Nothing to do!