Editing Openai/690f8ac2-4e38-8012-b650-1cba68fd0972 (section)

==  ==

When the installer is really in Legacy mode:

* You’ll not be asked about EFI.
* The only bootloader device option will be /dev/sda, not /dev/sda1, /dev/sda2, etc.
* The “No EFI partition found” message will not appear.

Partition scheme example:

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Bootloader: /dev/sda

Can you please run that short terminal check and tell me whether it says UEFI mode or Legacy mode right now? That will determine which exact fix you need next.


'''Prompt:'''
It comes back with "Legacy Mode"

'''ChatGPT:'''
Perfect — that confirms you really are booted in Legacy mode, so this is a very specific corner case we can fix directly. 👍

If the installer is running in Legacy mode but still gives you the EFI partition warning, it means:

* The installer sees leftover GPT partitioning from when the drive was used with Windows or a previous UEFI install.
* Legacy BIOS (and GRUB in BIOS mode) expects an MBR (msdos) partition table, not GPT.

That mismatch is what’s triggering the “No EFI System Partition was found…” message.