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I have a Lenovo G580 on which I installed Windows 8 and several Linux distros which have messed with my booting. The last I used was boot-repair tool. I have an EFI partition on sda2. The Grub load and I can boot to windows or Linux Mint or Mageia.

It seems now I cannot access UEFI by my regular F2 key. On searching around I found this thread: BIOS Setup Menu is not Accessible I want to know how can I get back my UEFI settings menu? From what I understand, I have messed up my Lenonvo's NVRAM. The tool efibootmgr shows no entries at all.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.

fixer1234
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marti
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  • I am sure this is not.I confirmed F2 is my key and I have been doing this for ages.It is not a problem of simple quick booting.Is there a way to access firmware after grub loads? – marti Jun 18 '14 at 15:46
  • at one point when I had installed refind bootmanager, the BIOS boot options had loaded and they showed only one enty viz. Refind. now that is gone,which leads me to believe I have overwritten my NVRAM.Its not a problem of missing a key.somebody on IRC suggested to check fwsetup command. – marti Jun 18 '14 at 16:43
  • I checked.Its a command to boot to firmware from Grub.Doesnt seem to work though.Do you suggest flashing my BIOS? – marti Jun 18 '14 at 16:48
  • Let us [continue this discussion in chat](http://chat.stackexchange.com/rooms/15185/discussion-between-marti-and-ramhound). – marti Jun 18 '14 at 16:53
  • Yeah.Its the same, boots to GRUB.Yeah I mean to access those settings where I can change boot media priority etc UEFI – marti Jun 18 '14 at 17:01
  • @Ramhound FYI, the "firmware setup" menu in grub works by running `fwsetup`. So if `fwsetup` at the grub prompt doesn't work, then its doubtful the menu item (were it there) would either. – derobert Jun 18 '14 at 17:07
  • I have tried restarting from windows(which should nullify fastboot if it was present) still the same. – marti Jun 18 '14 at 17:12

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