Missing the ESP flag

Ubuntu
1

I have Ubuntu only on this computer and when I check with gParted your suggestion regarding ESP, find I only has the boot flag active.

This post is regarding : How to Actually Install Ubuntu on USB

Previously this was a Win10 machine. Fast & Secure Boot are disabled.

Any advice please on how I might fix this issue. Ubuntu did install a 512 Mb fat32 partition for /boot/efi/ as mount point. The rest is an extended partition with the ext4 partition in it, and a swapfile in root.

In my BIOS the CSM shows Boot device Control set to UEFI & Legacy. Also has Boot from Storage Device set as Legacy only.

Much appreciate your comments and assistance.

Cheers Amit

2

There may well be no issue here.
It seems that the ESP flag relates to Windows 10 should it be present.
In my case I only have Ubuntu installed on my “C Drive” SSD and that provided itself with a fat32 512M partition mounted as /boot/efi/
Cheers