Tom Ordonez

Data Science, Machine Learning, Software Engineering

Increase Boot Size in Linux Fedora


I keep having this issue on a local Linux server. When I want to update the system, after it downloads the updates and it's ready to install them, it says the boot size is too small.

Review the boot size:

$ df -h
Filesystem   Size  Used  Avail Use%  Mounted on
/dev/sdb1    190M  151M  26M   86%   /boot

Increase Boot Size

According to this discussion on the Redhat forum. Increasing the boot size is possible but it's not a supported method, as it might create instability in the disk.

The recommendation is backing up the system and choosing a larger partition with a fresh install. Redhat recommends at least 1GB for /boot.

It is obviously a valid advice. But doing this could take hours.

These are the options to reduce the size of Used space.

Remove Old Kernels

As seen here

Check kernels:

$ dnf list kernel

This can take a few minutes. My output was:

Installed Packages
kernel.x86_64  5.3.8-200.fc30    @updates
kernel.x86_64  5.3.11-300.fc31   @updates
kernel.x86_64  5.3.14-300.fc31   @updates

Available Packages
kernel.x86_64  5.4.8-200.fc31    updates

Remove the number of kernels:

$ sudo dnf remove $(dnf repoquery --installonly --latest-limit=-2 -q)

If this doesn't work. Try restarting. Then run again. Then try updating system again.

You can also try limiting the number of kernels to 1:

$ sudo dnf remove $(dnf repoquery --installonly --latest-limit=-1 -q)

Now it shows:

$ df -h
Filesystem   Size  Used  Avail Use%  Mounted on
/dev/sdb1    190M  114M  63M   65%   /boot