BIOS SETUP MENU IS NOT ACCESSIBLE

[aritradas7]

I purchased Lenovo G580 on 11/07/2012. I installed Fedora 17 in it. Yesterday I installed Windows 7. After successful installation, a strange problem appears. The system automatically set the atheros ethernet as 1st boot device. In the bios screen when i pressed F2, nothing happened, it can't be able to go to bios setup. When i pressed F12, boot device menu opened, where 1st boot device is Fedora.

my bios version is phoenix SC-T v2.2

can anyone provide me the bios file? i can't find it anywhere..

[ravi.ameer]

Hey hi all...Even Im facing the same issue here...I installed Ubuntu 12.04 and found the same eeror....I cannot even get into my bios. any1 please help....

[Hagis2k]

Maybe try removing the cmos battery and reset the bios i assume its located underneath the memory lid... try that first.

[ravi.ameer]

Hey thanks for your reply. I think I figured it out.

The problem is with UEFI based bios. Lenovo G580 comes with UEFI ON by default. First thing we need to do is disable this option from bios and then install Ubuntu on top of it. Now I'm using Ubuntu and Windows 7 dual booted on my G580. Feel free to contact me in case of any issues here.

[farhan50]

I installed ubuntu 12.10 on my laptop and now i can't access my bios also my bootable dvd's are not detected during startup. Can anybody help me?

[ackLenovoACK]

Hey I'm having a similar issue, my UEFI bios is messed up so now I can't get into my BIOS menu to turn it off!!!

I'm not sure how to fix it, my F2 for Bios and F12 for boot menu are both broken now

PS: Lenovo U410 Laptop...

Any way to clear UEFI NVRAM?!?!?

[rockvilla]

I am also facing same problem in my Lenovo G580 laptop. I have only ubuntu 12.10 installed

[Adiost]

For the sake of future generations, I post my experience regarding this issue here:

This nonsense happens only after installing something other than Windows 8/8.1 in UEFI mode. Usually it's linux, but if it's not, god bless you, skip to solution #2.

SOLUTION #1:
Your only way to interact with UEFI is via your Linux system, so don't [censored] it up.
Ubuntu/Linux Mint/Archlinux etc. for some reason don't install properly on Lenovo G580 in UEFI mode. I have no idea why, but they always register themselves in UEFI boot sequence as entry number one. And that's the exact reason why BIOS isn't accessible anymore, Setup Utility is always "Boot0000" (entry #1), therefore Linux overwrites it and UEFI doesn't know about Setup anymore.
Luckily, these great people, Lenovo engineers, integrated some sort of emergency default settings. When UEFI lacks an entry, it restores itself from these defaults. Problem is, after installing Linux Boot0000 is still there, even if it points to something different from Setup, it's still there and the solution is to remove it.

Code:

[sudo] efibootmgr -b 0 -B

That's it. There's no Boot0000, system will restore the default entry: "Enter Setup Utility". Your OS would become inaccessible, but who cares, there are plenty of guides how to restore it.

SOLUTION #2:
I personally experienced this kind of problem twice. And the first time I screwed up trying to find a solution like the one above. I practically bricked my laptop. If you were as stupid as I was, bring your laptop to Lenovo, they'll replace mobo for free.

[amrit]

I have a Lenovo G580 on which I installed Windows 8 and several linux versions which ahve messed with my booting.It seems now I cannot access BIOS by my regular F2 key.On searching around I found this thread:
http://www.bios-mods.com/forum/Thread-BI...ACCESSIBLE
I want to know how can I get back my BIOS settings menu? From what I understand , the linux tool efibootmgr has messed up my Lenonvo's NVRAM.Is there a safe way to restore it? I can boot to linux but any change I make may render my laptop bricked as there are no other boot option.

[Auspicioushubh]

Hey thanks for your reply. I think I figured it out.

The problem is with UEFI based bios. Lenovo G580 comes with UEFI ON by default. First thing we need to do is disable this option from bios and then install Ubuntu on top of it. Now I'm using Ubuntu and Windows 7 dual booted on my G580. Feel free to contact me in case of any issues here.

I flashed my ROM of lenovo G580 using phoenix, but problem still persists as I am unable to boot ubuntu using pendrive under disabled UEFI. Also it works properly under enabled UEFI.