How to change Title in /boot/loader/entries/*.conf for future updates

I am trying to set a custom Title to the .conf files under /boot/loader/entries, for future kernel updates.

This is what I have done:

cp /usr/lib/kernel/install.d/90-loaderentry.install /etc/kernel/install.d
Update /etc/kernel/install.d/90-loaderentry.install as:

#if ! [[ $PRETTY_NAME ]]; then

However, the latest entry after dnf update is still having the default Title:

cat e0288411347f4107bb6edb0f77e9971e-5.14.0-0.rc1.20210714git40226a3d96ef.18.fc35.x86_64.conf 
title Fedora Linux (5.14.0-0.rc1.20210714git40226a3d96ef.18.fc35.x86_64) 35 (Workstation Edition Prerelease)
version 5.14.0-0.rc1.20210714git40226a3d96ef.18.fc35.x86_64
linux /fboot/vmlinuz-5.14.0-0.rc1.20210714git40226a3d96ef.18.fc35.x86_64
initrd /fboot/initramfs-5.14.0-0.rc1.20210714git40226a3d96ef.18.fc35.x86_64.img
options root=UUID=507afa72-cf38-4947-9f75-dc9c6531d269 ro rootflags=subvol=root.rawhide resume=UUID=8210480d-8583-40fb-8e7d-ae93e7a1919c
grub_users $grub_users
grub_arg --unrestricted
grub_class fedora

I tried with Fedora-34 and Fedora-35-rawhide, both have the same result.

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sudo cp -f /usr/lib/kernel/install.d/20-grub.install /etc/kernel/install.d
sudo sed -i -e "/^COMMAND=/i NAME=test" /etc/kernel/install.d/20-grub.install
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Thank you very much!

Now I know:

  • for default setup, modify 20-grub.install
  • for BLS liked setup, modify 90-loaderentry.install and create folder /boot/$(cat /etc/machine-id)
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