I deleted 2 ext4 partitions and extended my ntfs (Windows) partition by additional 98 GiB, which left about 45 GiB space at the end of the SSD.if Ubuntu does not have the directory
Next, I installed Ubuntu 22.04.3 at the end of the SSD using the 22.04.3 installer on a thumb drive. This gave me back my boot menu, which had disappeared when I deleted Ubuntu - good.
The new boot menu has no option to enter EFI setup. I really want that option on the menu - I really want that. Someone suggested this problem might be because I booted my Ubuntu 22.04.3 installer in 'compatibility' mode, instead of EFI mode. They said
sys.firmware.efi
then I must have booted the installer in compatibility mode. However I DO have directory
sys.firmware.efi. Furthermore, nowhere do I find an option to choose "compatibility" or "EFI" when booting the Ubuntu installer.
Can anyone tell me how to add the EFI option to the (grub) boot menu.
TIA. Bill S
On 10/15/2023 3:29 AM, bilsch01 wrote:said if Ubuntu does not have the directory
I deleted 2 ext4 partitions and extended my ntfs (Windows) partition by additional 98 GiB, which left about 45 GiB space at the end of the SSD.
Next, I installed Ubuntu 22.04.3 at the end of the SSD using the 22.04.3 installer on a thumb drive. This gave me back my boot menu, which had disappeared when I deleted Ubuntu - good.
The new boot menu has no option to enter EFI setup. I really want that option on the menu - I really want that. Someone suggested this problem might be because I booted my Ubuntu 22.04.3 installer in 'compatibility' mode, instead of EFI mode. They
sys.firmware.efi
then I must have booted the installer in compatibility mode. However I DO have directory
sys.firmware.efi. Furthermore, nowhere do I find an option to choose "compatibility" or "EFI" when booting the Ubuntu installer.
Can anyone tell me how to add the EFI option to the (grub) boot menu.
TIA. Bill S
https://www.baeldung.com/linux/grub-bootloader-add-new-os
"
$ sudo cat /etc/default/grub | grep 'GRUB_DISABLE_OS_PROBER'
GRUB_DISABLE_OS_PROBER=true
If we get false, then it shows os-prober is active. That example needs to be changed.
# sudo update-grub
"
apt search os-prober
sudo apt install os-prober # If it is not currently installed
That's the kind of material, to make GRUB pick up windows OSes.
Check your os-prober, before doing the update-grub.
[Picture]
https://i.postimg.cc/WzrWxRY7/Boot-Menu-Multiboot-Mix.gif
This is what the update-grub looks like, when I run it there.
This would correspond to the provided [Picture].
bullwinkle@CRUISE:~$ sudo update-grub
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/50_linuxmint.cfg'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.15.0-86-generic \
Found initrd image: /boot/initrd.img-5.15.0-86-generic \
Found linux image: /boot/vmlinuz-5.15.0-76-generic \
Found initrd image: /boot/initrd.img-5.15.0-76-generic \___ 21.2 material Found linux image: /boot/vmlinuz-5.15.0-73-generic /
Found initrd image: /boot/initrd.img-5.15.0-73-generic /
Warning: os-prober will be executed to detect other bootable partitions.
Its output will be used to detect bootable binaries on them and create new boot entries.
Found Windows Boot Manager on /dev/sda1@/EFI/Microsoft/Boot/bootmgfw.efi Found Linux Mint 21.1 Vera (21.1) on /dev/sda5
Adding boot menu entry for UEFI Firmware Settings ...
done
bullwinkle@CRUISE:~$
Paul
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