Hey there folks, I’ve installed Rocky Linux 9 on my 64GB SD card, Raspberry Pi 3B+. The installation went fine but the filesystem is not fully utilizing the space available from the SD card, so I can’t install docker due to insufficient space.
The code below is just showing that I can’t install docker due to insufficient space.
[rocky@localhost ~]$ sudo dnf -y install docker-ce docker-ce-cli containerd.io docker-compose-plugin
[sudo] password for rocky:
Last metadata expiration check: 1:45:14 ago on Tue 26 Dec 2023 05:58:11 AM UTC.
Dependencies resolved.
========================================================================================================================
Package Architecture Version Repository Size
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Installing:
containerd.io aarch64 1.6.26-3.1.el9 docker-ce-stable 26 M
docker-ce aarch64 3:24.0.7-1.el9 docker-ce-stable 15 M
docker-ce-cli aarch64 1:24.0.7-1.el9 docker-ce-stable 6.5 M
docker-compose-plugin aarch64 2.21.0-1.el9 docker-ce-stable 11 M
Installing dependencies:
container-selinux noarch 3:2.221.0-1.el9 appstream 55 k
fuse-overlayfs aarch64 1.12-1.el9 appstream 63 k
fuse3 aarch64 3.10.2-6.el9 appstream 52 k
fuse3-libs aarch64 3.10.2-6.el9 appstream 88 k
libslirp aarch64 4.4.0-7.el9 appstream 68 k
slirp4netns aarch64 1.2.1-1.el9 appstream 46 k
tar aarch64 2:1.34-6.el9_1 baseos 865 k
Installing weak dependencies:
docker-buildx-plugin aarch64 0.11.2-1.el9 docker-ce-stable 11 M
docker-ce-rootless-extras aarch64 24.0.7-1.el9 docker-ce-stable 3.6 M
Transaction Summary
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Install 13 Packages
Total size: 75 M
Installed size: 318 M
Downloading Packages:
[SKIPPED] containerd.io-1.6.26-3.1.el9.aarch64.rpm: Already downloaded
[SKIPPED] docker-buildx-plugin-0.11.2-1.el9.aarch64.rpm: Already downloaded
[SKIPPED] docker-ce-24.0.7-1.el9.aarch64.rpm: Already downloaded
[SKIPPED] docker-ce-cli-24.0.7-1.el9.aarch64.rpm: Already downloaded
[SKIPPED] docker-ce-rootless-extras-24.0.7-1.el9.aarch64.rpm: Already downloaded
[SKIPPED] docker-compose-plugin-2.21.0-1.el9.aarch64.rpm: Already downloaded
[SKIPPED] tar-1.34-6.el9_1.aarch64.rpm: Already downloaded
[SKIPPED] container-selinux-2.221.0-1.el9.noarch.rpm: Already downloaded
[SKIPPED] fuse3-libs-3.10.2-6.el9.aarch64.rpm: Already downloaded
[SKIPPED] fuse3-3.10.2-6.el9.aarch64.rpm: Already downloaded
[SKIPPED] fuse-overlayfs-1.12-1.el9.aarch64.rpm: Already downloaded
[SKIPPED] slirp4netns-1.2.1-1.el9.aarch64.rpm: Already downloaded
[SKIPPED] libslirp-4.4.0-7.el9.aarch64.rpm: Already downloaded
Running transaction check
Transaction check succeeded.
Running transaction test
The downloaded packages were saved in cache until the next successful transaction.
You can remove cached packages by executing 'dnf clean packages'.
Error: Transaction test error:
installing package docker-buildx-plugin-0:0.11.2-1.el9.aarch64 needs 26MB more space on the / filesystem
installing package docker-ce-cli-1:24.0.7-1.el9.aarch64 needs 56MB more space on the / filesystem
installing package docker-ce-rootless-extras-0:24.0.7-1.el9.aarch64 needs 71MB more space on the / filesystem
installing package docker-ce-3:24.0.7-1.el9.aarch64 needs 140MB more space on the / filesystem
Error Summary
-------------
Disk Requirements:
At least 140MB more space needed on the / filesystem.
After that, I went to check the storage available using df -lh and noticed that the / and /boot directories are so small. Below is the output of df -lh.
[rocky@localhost ~]$ df -lh
Filesystem Size Used Avail Use% Mounted on
/dev/root 2.5G 2.3G 197M 93% /
devtmpfs 421M 0 421M 0% /dev
tmpfs 455M 0 455M 0% /dev/shm
tmpfs 182M 3.4M 179M 2% /run
/dev/mmcblk0p1 286M 141M 146M 50% /boot
tmpfs 91M 4.0K 91M 1% /run/user/1000
I tried googling the answer and I eventually got into this ask ubuntu post, but this is not that answer that I’m looking for because what I really wanted to do is just resizing the SD card to get more space from the same SD card. Your help would be appreciated, thanks in advance. 
Not sure if this is helping but I’m just gonna share my neofetch here.
[rocky@localhost ~]$ neofetch
##### rocky@localhost
####### ---------------
##O#O## OS: Rocky Linux 9.3 (Blue Onyx) aarch64
####### Host: Raspberry Pi 3 Model B Plus Rev 1.3
########### Kernel: 6.1.31-v8.1.el9.altarch
############# Uptime: 2 days, 21 hours, 29 mins
############### Packages: 572 (rpm)
################ Shell: bash 5.1.8
################# Terminal: /dev/pts/0
##################### CPU: BCM2835 (4) @ 1.400GHz
##################### Memory: 125MiB / 909MiB
#################
[rocky@localhost ~]$