Lubuntu installation problem

[tea for one]

Install rEFInd on a USB stick and select to boot the kernel directly i.e. hopefully avoid Grub and Acer trust settings.
https://www.rodsbooks.com/refind/
https://www.rodsbooks.com/refind/getting.html > A USB Flash Drive Image File

More info here https://www.linuxquestions.org/quest...sb-4175618070/

I can't test the theory because I do not have an Acer laptop
Worth trying?

[oldfred]

Acer only has two models that it supports with Linux fwupdate for UEFI firmware updates.
https://fwupd.org/lvfs/devices/
Aspire A315 and 515.

So not know if Acer supports any of these:
https://www.reddit.com/r/linuxhardwa...n_acer_laptop/

Many new systems update from within UEFI reading the update file from a FAT32 partition, either ESP if large enough or flash drive.
You often download a Windows .exe or .bin file & have to extract update.
Some update from a bootable image you can download.
Some may work with a WinPE bootable image.

HP UEFI update - extract .bin from .exe file and copy into FAT32 partition.
https://askubuntu.com/questions/5391...234098#1234098 &
https://h30434.www3.hp.com/t5/Notebo...41775#M1205498

[nyamerooo]

update:

I've already updated the firmware but there's still no "Select an UEFI file for trusted executing", So updating BIOS/firmware wasn't the fix. I've fixed it by following this article: http://www.slabbe.org/blogue/2018/05...-es1-132-c6lg/.