Comment 118 for bug 1396379

Xiao Wang:
If you put the created Ubuntu device back where it was when you created it
you should be able to boot using it for the very beginning of the booting
sequence.

If you can do that you should get a "grub menu" and it should contain a
Windows entry. It may appear very briefly, however.

As you boot quickly and repeatedly press the down arrow button on your
keyboard and you may be able to get the grub menu to stay up so you can
choose its windows entry.

I hope this works for you.

On Sun, Jul 16, 2023 at 2:50 PM Xiao Wang <email address hidden>
wrote:

> Another question, Would anyone know if I could replace Ubiquity (the old
> Ubuntu Desktop installer) to the new one, if I try to make a custom live
> usb of 22.04 LTS using Cubic (Custom Ubuntu ISO Creator)?
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1396379
>
> Title:
> installer uses first EFI system partition found even when directed
> otherwise
>
> Status in grub-efi-amd64-signed package in Ubuntu:
> Confirmed
> Status in ubiquity package in Ubuntu:
> Confirmed
> Status in grub-efi-amd64-signed source package in Jammy:
> Confirmed
> Status in ubiquity source package in Jammy:
> Confirmed
>
> Bug description:
> (k)ubuntu 14.04.1
> package version: 2.02~beta2-9ubuntu1
>
> i installed ubuntu on my external hard disk, where i also have a
> previously installed fedora system. i also have a windows
> (efi-booted) system in the internal hard disk.
>
> at install time via ubiquity i get all grub configuration files in the
> first EFI-labelled partition (i.e. /dev/sda2 in my case) instead of the one
> i selected (/dev/sdb1).
> later i changed my fstab mounting /boot/efi on /dev/sdb1 and tried to
> reinstall grub package (apt-get install --reinstall grub-efi-amd64); now
> all grub configuration files are in the rigt place, but booting from the
> external hard disk still shows the fedora grub installation, while selectin
> the internal hard disk from the bios menu shows a submenu listing ubuntu
> and windows.
> explicitly installing grub in the correct disk (grub-install /dev/sdb;
> grub-mkconfig -o /boot/efi/EFI/ubuntu/grub.cfg) has no effect, nor it has
> running efibootmgr (efibootmgr -c --disk /dev/sdb --part 1).
>
> expected results: grub shoud have been installed in the disk/partition i
> chose;
> actual results: ubuntu always chooses the first disk to install grub on.
>
> Note that this is not just about the dummy grub install location
> selector that is not used in EFI mode, but configuring one partition
> as do not use, and the other as ESP in the manual partitioning screen.
>
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>
> https://bugs.launchpad.net/ubuntu/+source/grub-efi-amd64-signed/+bug/1396379/+subscriptions
>
>