[SOLVED] UEFI Deleteing Boot Entry : don't work out

[ylyco]

Hello,

I have my new PC with 2 OS : Windows 11 and Mageia 8.
I installed Kubuntu before Mageia 8 to make a try, but it didn't convince me, so I override Kubuntu's partition with the Mageia 8 one.

My problem is that in the ASUS Bios boot settings, the Kubuntu's still appears.
So I tried this command as root :

Code: Select all

efibootmgr -b 0002 -B

It deleted the Kubuntu boot, but after reboot, I checked the Bios : the Kubuntu boot were still there...

And the efibootmgr shows again the Kubuntu boot sequence :

Code: Select all

[root@Asus2022 regis]# efibootmgr -v
BootCurrent: 0001
Timeout: 1 seconds
BootOrder: 0001,0000,0002
Boot0000* Windows Boot Manager  HD(1,GPT,a0177756-5d8d-4d35-9362-e37fbe18184f,0x800,0x32000)/File(\EFI\MICROSOFT\BOOT\BOOTMGFW.EFI)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}....................
Boot0001* mageia        HD(1,GPT,a0177756-5d8d-4d35-9362-e37fbe18184f,0x800,0x32000)/File(\EFI\MAGEIA\GRUBX64.EFI)
Boot0002  ubuntu        HD(1,GPT,a0177756-5d8d-4d35-9362-e37fbe18184f,0x800,0x32000)/File(\EFI\UBUNTU\SHIMX64.EFI)..BO
[root@Asus2022 regis]# efibootmgr -b 0002 -B


Any idea to definitively delete this Kubuntu boot option ?

Thank you in advance.

[sturmvogel]

You need to look into your EFI partition and make sure that there are no leftovers like \EFI\UBUNTU\SHIMX64.EFI or it will be added again to the boot order.
Delete the Ubuntu directory and after that remove the boot entry again via efibootmgr command.

Dependend on your setup the path may differ but normally you should have a look at /boot/EFI/EFI/ubuntu

[ylyco]

Thank you sturmvogel :
all is clean now on my system

Happy weekend