When I started up my machine this morning (I have Secure Boot and UEFI only enabled) I got this error (sorry for low quality image):
What does it mean by
Image failed to verify with *ACCESS DENIED*? After I pressed
OK I managed to get into my BIOS and turn off Secure Boot as well as settings the UEFI only option to accept both UEFI and Legacy, this seemed to do the trick and now it boots, however I am unable to set it so that Secure Boot is on again and this poses a security threat to me so I am wondering what the problem is here? And why I got the error? I mean, is there error something to worry about? And why did it
*ACCESS DENIED* me?
The only thing that I can think of that I might have done last night before this issue this morning occurred is receive some security updates for grub and some other stuff:
So basically I need to know what the error means, why I got it, and how to fix this situation. I mean, could this error mean that I have been compromised in some way and should do a fresh install or something? Or is it just a malfunction? And if so, how do I fix it so that I can use Secure Boot again?
I am running Ubuntu GNOME 15.10 with GNOME 3.18 on a Lenovo B590.
The output from the command
BootCurrent: 000E Timeout: 0 seconds BootOrder: 000E,0000,0001,0002,0003,000C,0006,0007,0008,0009,000A,000B,000D Boot0000 Setup Boot0001 Boot Menu Boot0002 Diagnostic Splash Screen Boot0003 Lenovo Diagnostics Boot0004 Startup Interrupt Menu Boot0005 Rescue and Recovery Boot0006* USB CD Boot0007* USB FDD Boot0008* ATAPI CD1 Boot0009* ATA HDD0 Boot000A* ATA HDD1 Boot000B* ATA HDD2 Boot000C* USB HDD Boot000D* PCI LAN Boot000E* ubuntu