Aspire A715-72G - How can the EFI entry for booting from USB be recovered?

Alan_H
Alan_H Member Posts: 1 New User
edited November 2023 in 2018 Archives
Today, after installing a lubuntu partition, the EFI option for booting from USB disappeared from my Aspire A715-72G.

I've worked out a procedure for reviving existing EFI entries via the UEFI setup utility - it involves enabling Secure Boot, adding an entry pointing to the existing bootloader, and then disabling Secure Boot to allow invocation of that bootloader - so I was able to get my main linux partition to boot again.  Naturally, I'd like to do the same for the "boot from USB device" bootloader, but I don't know which of the other EFI folders it might be in, or if it got deleted during the lubuntu install process, or if booting a USB device even involves an EFI bootloader.

Besides the two linux-y folders, the remaining EFI subfolders are Boot, OEM, and Microsoft.

Thanks for any insights you can offer...