Filesystem Reserved Space

[Trevor]

The default percentage of reserved space, for the root user, on new ext4 filesystems is 5% of the total space on the filesystem.

How can I go about reducing this percentage to 3%?

[Ad_astra]

Hi

When using an ext4 file system, the following command can adust the reseved space for the root user on a given partition:

sudo tune2fs -m 3 /dev/sda1

Where 3 is the percentage of reserved disk space on /dev/sda1.

It is important to note that this only works on ext2/ext3/ext4 file systems. 

The XFS file system reserves about 5% of its blocks internally but it is not advisable to adjust this.

Thanks 

AA

[Chetan_Tiwary_]

@Trevor  Reducing it to 3% wont help for longer as you will still be at 97% occupancy - you need to add storage anyways! But yes your answer is tune2fs.

https://man7.org/linux/man-pages/man8/tune2fs.8.html