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deb https://buaya.klas.or.id/ubuntu/ focal main restricted universe multiverse
deb https://buaya.klas.or.id/ubuntu/ focal-updates main restricted universe multiverse
deb https://buaya.klas.or.id/ubuntu/ focal-security main restricted universe multiverse
deb https://buaya.klas.or.id/ubuntu/ focal-backports main restricted universe multiverse
deb https://buaya.klas.or.id/ubuntu/ focal-proposed main restricted universe multiverse

Diagnostics

sudo find /var/lib/docker/ -maxdepth 1 -mindepth 1 | xargs sudo du -sch

Resolution
- To clean up images, try removing all images that aren't currently in use:

$ docker images -aq -f 'dangling=true' | xargs docker rmi

Install openSUSE Tumbleweed in a VM

Download latest openSUSE Tumbleweed ISO openSUSE-Tumbleweed-DVD-x86_64-Snapshotyyyymmdd-Media.iso
Give it plenty of disk: at least 28 GB.

Install dependencies

sudo zypper ar https://download.opensuse.org/source/tumbleweed/repo/oss/ openSUSE-Tumbleweed-Source
sudo zypper ref

First boot the system into Rescue Mode from the media. For best results use media that matches the version and service pack of the system.
Once it's finished loading, log in as root.
Mount the root partition or logical volume to /mnt
```
# mount /dev/<device name> /mnt
```
If it's not known where the root file system is, it needs to be guessed until found by mounting each possibility and checking its contents. Run the following command to list all available partitions:

	Fast&Sec DNS servers:

	64.6.64.6 - verisign
	1.1.1.1 - cloudflare
	9.9.9.9 - quad9
	84.200.69.80 - dnswatch
	94.247.43.254 - opennic
	89.233.43.71 - censurfridns
	94.130.110.185 - dnsprivacy
	208.67.222.222 - opendns

	Nama ID Aplikasi Versi Cabang
	dconf-editor ca.desrt.dconf-editor stable
	DOSBox com.dosbox.DOSBox stable
	Tilix com.gexperts.Tilix stable
	Foliate com.github.johnfactotum.Foliate stable
	JumpnBump com.jumpnbump.JumpnBump stable
	zeroad com.play0ad.zeroad stable
	Transmission com.transmissionbt.Transmission stable
	astromenace com.viewizard.astromenace stable
	foobillard dk.sunsite.foobillard stable

	# dnf upgrade
	# dnf install dnf-plugins-core fedora-repos-rawhide
	# dnf config-manager --set-disabled fedora updates updates-testing
	# dnf config-manager --set-enabled rawhide
	# dnf clean -q dbcache packages metadata
	# Go to https://getfedora.org/en/security/ and find the key for the current rawhide version, download and 'rpm --import key.asc'
	# dnf --releasever=rawhide --setopt=deltarpm=false distro-sync

	## Optional: it is generally advised to do a selinux autorelabel and reboot
	# touch /.autorelabel

	sudo apt install gnome-software gnome-software-plugin-flatpak
	flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
	snap remove snap-store

	toolbox create --release f32
	toolbox enter --release 32