Not enough free disk space

hemetori · 2021-10-09 16:01:19

Hello! I'm sorry if this question is really stupid...

Here's the problem: the internal drive (dm-0) is full. I set it to 30Gb and recently I found out that I need much more space. How do I change the size of it?

Ammako · 2021-10-09 16:11:46

The gist of it is to shrink whichever other partition to make space for your root partition, then extend root partition to fill free space.

These are very rough instructions, but without knowing your disk's partition layout we can't really give exact instructions. You need to shrink the filesystem on a partition before you can shrink the partition itself, and it's possible you may need to move the shrinked partition to the right so the root partition has space to expand, which is a risky operation and is prone to errors.

You can use gparted and it should handle resizing the filesystem alongside the partition, and make it easier to visualize what you need to do with your partitions, what needs to be moved where and how. You might need to do that from a live usb too because I'm not sure if you can make operations on mounted partitions.

Either way, backup your important data first. You'll be glad you did if something goes wrong when resizing/moving partitions.

Last edited by Ammako (2021-10-09 16:11:58)

hemetori · 2021-10-09 16:44:02

Here's the results of `df -h` command:

Filesystem                     Size  Used Avail Use% Mounted on
dev                            3.9G     0  3.9G   0% /dev
run                            3.9G  1.9M  3.9G   1% /run
/dev/mapper/volgroup0-lv_root   30G   27G  886M  97% /
tmpfs                          3.9G  146M  3.7G   4% /dev/shm
tmpfs                          3.9G   18M  3.8G   1% /tmp
/dev/mapper/volgroup0-lv_home  886G   16G  826G   2% /home
/dev/loop1                     128K  128K     0 100% /var/lib/snapd/snap/bare/5
/dev/loop4                     165M  165M     0 100% /var/lib/snapd/snap/gnome-3-28-1804/161
/dev/loop3                      62M   62M     0 100% /var/lib/snapd/snap/core20/1169
/dev/loop5                      66M   66M     0 100% /var/lib/snapd/snap/gtk-common-themes/1519
/dev/loop6                     261M  261M     0 100% /var/lib/snapd/snap/kde-frameworks-5-core18/32
/dev/loop0                     209M  209M     0 100% /var/lib/snapd/snap/code/75
/dev/loop7                     701M  701M     0 100% /var/lib/snapd/snap/libreoffice/229
/dev/loop8                     169M  169M     0 100% /var/lib/snapd/snap/postman/148
/dev/loop2                     100M  100M     0 100% /var/lib/snapd/snap/core/11606
/dev/loop10                    420M  420M     0 100% /var/lib/snapd/snap/webstorm/221
/dev/loop11                    603M  603M     0 100% /var/lib/snapd/snap/libreoffice/235
/dev/loop9                     420M  420M     0 100% /var/lib/snapd/snap/webstorm/219
/dev/loop12                     62M   62M     0 100% /var/lib/snapd/snap/core20/1081
/dev/loop13                    831M  831M     0 100% /var/lib/snapd/snap/intellij-idea-ultimate/316
/dev/loop14                    309M  309M     0 100% /var/lib/snapd/snap/telegram-desktop/3239
/dev/loop15                     56M   56M     0 100% /var/lib/snapd/snap/core18/2128
/dev/loop16                    455M  455M     0 100% /var/lib/snapd/snap/phpstorm/232
/dev/loop17                    831M  831M     0 100% /var/lib/snapd/snap/intellij-idea-ultimate/319
/dev/loop18                    169M  169M     0 100% /var/lib/snapd/snap/postman/147
/dev/loop20                    2.8M  2.8M     0 100% /var/lib/snapd/snap/ksnip/340
/dev/loop19                    243M  243M     0 100% /var/lib/snapd/snap/gnome-3-38-2004/76
/dev/loop21                    242M  242M     0 100% /var/lib/snapd/snap/gnome-3-38-2004/70
/dev/loop22                    217M  217M     0 100% /var/lib/snapd/snap/code/76
/dev/loop23                    100M  100M     0 100% /var/lib/snapd/snap/core/11743
/dev/loop24                    3.0M  3.0M     0 100% /var/lib/snapd/snap/ksnip/386
/dev/loop25                    308M  308M     0 100% /var/lib/snapd/snap/telegram-desktop/3149
/dev/loop26                     66M   66M     0 100% /var/lib/snapd/snap/gtk-common-themes/1515
tmpfs                          782M   80K  782M   1% /run/user/1000

And here's the GParted screen:
GParted result

The questions is, why my

/dev/sda2

isn't divided into

/dev/mapper/volgroup0-lv_root

and

/dev/mapper/volgroup0-lv_home

How do I resize it then? Thank you in advance.

Ammako · 2021-10-09 17:58:03

Well, there we go lvm would have been useful information to know

You won't see this in gparted, because gparted doesn't handle lvm stuff. What you're looking to do is to shrink your home volume so you can extend your root volume afterwards.

https://wiki.archlinux.org/title/LVM#Re … _in_one_go

hemetori · 2021-10-11 23:38:44

Hey! So, um, I decided to re-install Arch in the end. I couldn't do resizing right
But I got the idea, next time I'll be aware!
All you said is right, I bet someone will find it useful too.

Thank you!

Arch Linux

#1 2021-10-09 16:01:19

Not enough free disk space

#2 2021-10-09 16:11:46

Re: Not enough free disk space

#3 2021-10-09 16:44:02

Re: Not enough free disk space

#4 2021-10-09 17:58:03

Re: Not enough free disk space

#5 2021-10-11 23:38:44

Re: Not enough free disk space

Board footer