但是注意的是tune2fs 只能用于ext2和ext3
[root@localhost tmp]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 4.0G 2.0G 1.8G 53% /
/dev/sda1 494M 19M 450M 4% /boot
none 506M 0 506M 0% /dev/shm
/dev/sdb1 7.9G 51M 7.5G 1% /srv/myproject
[root@localhost tmp]# tune2fs -l /dev/sda3 |grep -i 'block size'
Block size: 4096
[root@localhost tmp]# tune2fs -l /dev/sdb1 |grep -i 'block size'
Block size: 4096
[root@localhost tmp]# tune2fs -l /dev/sda1 |grep -i 'block size'
Block size: 1024