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NOTE: I am not after themes... more just hacking what's here as its faster.

In Ubuntu 18.04 I am trying to change the grub.png/splash.png image, the one you see when GRUB asks you what system you want to boot up, Linux/Windows/etc.

I know how to give myself permissions over a whole folder and its files in usr/share/background/ (which is how I changed my login screen), but if I am going any place near GRUB I want to only give permissions to the actual image - not to GRUB or kernel or other files inside.

Ideas?

  • Here's what I used to learn Plymouth. Not too in depth at the start but should help if you invest some reading time. – David Apr 13 at 3:51
  • The policy is to only ask one specific question at a time. To address the question in your title please add contents of /etc/default/grub to your questions. – WinEunuuchs2Unix Apr 13 at 12:35
  • Hmmm there is no ect/default/grub in my system... (I'm using ubutnu18.04 as the base distro) – anoutherguy Apr 13 at 18:32
  • Use @WinEunuuchs2Unix when replying to me otherwise I'll never see your comment. I stumbled across this by accident. Use cat /etc/default/grub to see the file contents. There was a spelling mistake in your directory name. The easiest way is to copy the text from this comment and paste it in your terminal. – WinEunuuchs2Unix Apr 16 at 23:51
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A tutorial on grub splash screen images is Here

b) sudo has to come first before your chmod command

c) David answered your question on plymouth in the comments area

  • Cheers
  • I am using ubuntu 18.04, not debian - as such the places it tells me to look for to tweak the grub are not in this system. – anoutherguy Apr 13 at 18:17

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