How to enable quotas on UEFI systems

Introduction

If you have attempted to enable quotas after following these guides with no success, then it likely means you have a system that utilizes UEFI firmware.

Enable Quotas

Enable quotas on XFS manually

Procedure

Being by testing the system you have using the following command:

[ -d '/sys/firmware/efi/' ] && echo "UEFI System" || echo "Standard BIOS System"

If your system is detected as UEFI then you will need to perform the following steps to enable quotas.

Create a backup of your EFI grub configuration:

cp -avx /boot/efi/EFI/centos/grub.cfg /boot/efi/EFI/centos/grub.cfg.$(date +%s)

Then rebuild the Grub configuration:

grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg

Once its been rebuilt, confirm that quotas appear as enabled in the new configuration:

grep quota /boot/efi/EFI/centos/grub.cfg

The expected output should look like this:

linux /vmlinuz root=UUID=bc7453b1 ro rd.auto crashkernel=auto vga=normal nomodeset rdloaddriver=raid1 rootflags=uquota
linux /vmlinu root=UUID=bc7453b1 ro rd.auto crashkernel=auto vga=normal nomodeset rdloaddriver=raid1 rootflags=uquota

Finally reboot your server.