Published at LXer:

When you format a partition in Linux , 5% of the total space gets reserved for privileged processes, by default . This is done so that system processes continue to function correctly ,if the filesystem gets full. This is useful for your ‘root’ partition.However if you have let us say 50GB separate home partition, you may want to make use of few additional GBs by reducing the percentage of the reserved space. You can use tune2fs command to change the default allocation of space reserved for privileged processes. Command for the same is : #tune2fs -m 1 /dev/sda6

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