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Hello all and sorry for the newbie question, but I'm going through this tutorial: How do I remove "Ubuntu" in the bios boot menu? (UEFI) and am unable to find the Ubuntu subdirectory to delete it. I've been through several of the articles on here: Using locate to find a directory , https://stackoverflow.com/questions/47887522/how-to-search-for-a-directory-from-the-terminal-in-ubuntu etc. with no success. Any advice would be much appreciated.

Jon
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    Your question is confusing. Are you trying to remove the Ubuntu entry fro the EFI partition. Or do you think there is a directory called Ubuntu some place on your hard drive? What exactly are you trying to do? – David Nov 02 '22 at 14:36
  • @David Thank you for response and sorry for the confusion. I'm trying to remove the Ubuntu entry from the EFI partition. – Jon Nov 02 '22 at 18:48
  • @David Looking at the article more closely I noticed it says "Now you should also delete the ubuntu subdirectory in the EFI partition to prevent the UEFI firmware from restoring the entry into the BootOrder." So I guess I'm trying to remove a subdirectory (directory??) called "Ubuntu" not to be confused with another? subdirectory? called "ubuntu." I know I sound lost - because I am. lol – Jon Nov 02 '22 at 19:00
  • Dawn, thank you for your help! the partition was located in /dev/sda1 so I did sudo mkdir /mnt/efipart sudo mount /dev/sda1 /mnt/efipart However when I try to cd/mnt/efipart I get a bash: cd: /mnt/efipart: Permission denied. – Jon Nov 02 '22 at 21:47
  • @Dawn I went through this: https://askubuntu.com/questions/998214/permission-denied-when-i-try-to-cd-into-any-folder and I'm going to do a fresh install. Just to be safe. – Jon Nov 02 '22 at 21:58
  • Welp. I tried. I changed the boot order to boot from USB (where the Ubuntu 22.04 image that I originally installed from) and now I'm getting stuck on the GRUB screen - again. Ready to throw in the bloody towel. Been days struggling with this. Maybe it's just time to admit defeat. ha! – Jon Nov 02 '22 at 22:11

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If you successfully mounted the partition with the following command (assuming your EFI partition is located in /dev/sda2. If not, you need to replace /dev/sda2 with the actual partition name to mount it to /mnt/efipart)

sudo mount /dev/sda2 /mnt/efipart

then, you can change directories to it and search:

cd /mnt/efipart
find . -name '*buntu'

If you use the wildcard *, then then it will match Ubuntu and ubuntu. If you do not have sufficient permissions to cd into /mnt/efipart, you can switch users with sudo su and you will now have root permission (sudo is no longer needed for each command). Be careful while you have root permission (and you will notice your prompt has changed to #). To return to your user permissions, simply enter exit

Dawn Howe
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  • @jon, if your user id lacks permissions to cd /mnt/efipart, you have 2 options: lower the permissions of /mnt/efipart (sudo chmod 777 /mnt/efipart) or elevate your permissions (sudo su). Read my answer above about how using sudo su gives you root permissions. – Dawn Howe Nov 05 '22 at 05:39