Arch Linux

Sleepful

Member

Registered: 2017-08-14

Posts: 30

[SOLVED] Resized Arch Linux partition: not making use of the new space

I had a 98 GB linux partition, I extended it to be 150 GB but the system does not see the extra space.

Here is a picture from KDE partition manager:

https://i.imgur.com/u0DaZzC.png

As you can see my linux partition (sda5) is inside an extended one, I'm not sure if this is relevant information.

Here is `df -h`, look at `/dev/sda5        98G`

Filesystem      Size  Used Avail Use% Mounted on
dev             7.8G     0  7.8G   0% /dev
run             7.8G  1.4M  7.8G   1% /run
/dev/sda5        98G   81G   13G  87% /
tmpfs           7.8G  282M  7.6G   4% /dev/shm
tmpfs           7.8G     0  7.8G   0% /sys/fs/cgroup
tmpfs           7.8G   32K  7.8G   1% /tmp
tmpfs           1.6G   16K  1.6G   1% /run/user/1000

I used GParted live to modify the partitions
https://gparted.org/livecd.php

What gives?

Mod Edit: Replaced oversized image with URL -- V1del

Last edited by Sleepful (2018-04-21 01:10:04)

circleface

Member

Registered: 2012-05-26

Posts: 639

Re: [SOLVED] Resized Arch Linux partition: not making use of the new space

You resized the partition, but did not resize the filesystem.  Use a tool like resize2fs to resize the filesystem as well.  You should be able to get by with just

# resize2fs /dev/sda5

Just make sure the filesystem isn't mounted when you resize it and make sure you backup any critical files because something could always go wrong with the resize.

Sleepful

Member

Registered: 2017-08-14

Posts: 30

Re: [SOLVED] Resized Arch Linux partition: not making use of the new space

Thanks a lot!
as per the manpage [1] resize2fs supports expanding mounted devices so I didn't have to do anything other than run the command

# resize2fs /dev/sda5
resize2fs 1.44.1 (24-Mar-2018)
Filesystem at /dev/sda5 is mounted on /; on-line resizing required
old_desc_blocks = 13, new_desc_blocks = 19
The filesystem on /dev/sda5 is now 39133952 (4k) blocks long.

# df -h
Filesystem      Size  Used Avail Use% Mounted on
dev             7.8G     0  7.8G   0% /dev
run             7.8G  1.4M  7.8G   1% /run
/dev/sda5       147G   85G   56G  61% /
tmpfs           7.8G  420M  7.4G   6% /dev/shm
tmpfs           7.8G     0  7.8G   0% /sys/fs/cgroup
tmpfs           7.8G  140K  7.8G   1% /tmp
tmpfs           1.6G   16K  1.6G   1% /run/user/1000

[1]

If the filesystem is mounted, it can be used to expand the size of the mounted filesystem, assuming the kernel supports on-line resizing. (As of this writing, the Linux 2.6 kernel supports on-line resize for filesystems mounted using ext3 and ext4.).

https://linux.die.net/man/8/resize2fs

circleface

Member

Registered: 2012-05-26

Posts: 639

Re: [SOLVED] Resized Arch Linux partition: not making use of the new space

I guess I learn something every day

Glad you got it working.