I've been at it all day and really am desperate. I'll make this short: HP machine, desktop installation. Wanted to upgrade to latest lts from non lts, i think it was 23.04, but not sure. Had to go through 23.10. After do-release-upgrade stuck in boot loop, can't start from efi/ubuntu/grubx64 nor the shimx one. No errors, just black screen and back to HP's boot menu. I can't seem to access grub by holding shift. Live usb (22.04) works. Secure boot is disabled, but I tried both.
PLEASE help, literally anything would be appreciated at this point. I really need this fixed ASAP.
