Question

122

df -h - Used space + Avail Free space is less than the Total size of /home

rated 0 times [ 122] [ 0] / answers: 1 / hits: 48737 / 2 Years ago, thu, february 24, 2022, 10:06:48

As the output of df -h shows here, something is eating up 5GB of free space. So, it's not available to use.

I'm also noticing sometimes that the hard disk gets filled up to 100% sometimes. So, I had to restart the machine or delete some unncessary files. Only noticed these in /home partition. Don't know whether these two are related, but appreciate if anyone can put some insight into this.

$ df -h

Filesystem            Size  Used Avail Use% Mounted on

/dev/sda8             100G   92G  2.7G  98% /home

Answers

Only authorized users can answer the question. Please sign in first, or register a free account.

oileweaty

Add To Favorites

Follow

Total Points: 337

Total Questions: 108

Total Answers: 105

Location: Western Sahara

Member since Mon, May 3, 2021

3 Years ago

oileweaty questions

1 How to check if preload is running or not?

Thu, Jul 1, 21, 01:57, 3 Years ago

1 What does "LMA" stand for?

Wed, Nov 24, 21, 11:48, 2 Years ago

1 Intel AX200 Wifi card abruptly stopped working on Dual Boot system with Ubuntu 20.04 and Windows 10

Mon, Jun 13, 22, 04:01, 2 Years ago

1 How to change/remove the file extensions of a group of files

Sat, Dec 24, 22, 16:51, 1 Year ago

1 Screen snip (win+shift+s) alternative for Ubuntu

Sat, May 14, 22, 00:50, 2 Years ago

View All

answered 2 Years ago irripri · Accepted Answer

By default, ext2/3/4 filesystems reserve 5% of the space to be useable only by root. This is to avoid a normal user completely filling the disk which would then cause system components to fail whenever they next needed to write to the disk.

You can see the number of reserved blocks (and lots of other information about the filesystem) by doing:

sudo tune2fs -l /dev/sda8

For a /home partition, it is probably safe to set the reserved fraction to zero:

sudo tune2fs -m 0 /dev/sda8

Which should make an additional ~5GB available.