I'm under Ubuntu 14.04 and I tried to change Ubuntu logo Original logo
I replaced the ubuntu_logo.png with another custom .png file in
/lib/plymouth/themes/ubuntu-logo
but when it restarted, it shows this image instead of the custom .png file
I'm under Ubuntu 14.04 and I tried to change Ubuntu logo Original logo
I replaced the ubuntu_logo.png with another custom .png file in
/lib/plymouth/themes/ubuntu-logo
but when it restarted, it shows this image instead of the custom .png file
Once you're sure your new image is in the right format, then make sure your image (and any other configuration) is updated in the initial RAM disk.
The startup/shutdown system called Plymouth reads theme information straight from the regular disk filesystem on shutdown, so changing a PNG file is all you need to do for that. For startup, though, Plymouth runs before the real disk is available. Instead, it reads files from a special area called the "initial RAM disk".
To update the existing RAM disk with your new settings, run:
sudo update-initramfs -u