ghost device on my UEFI Bios, how clean these entries?

[drugo]

hi

i have an asus motherboard , i have installed in the past some linux distros

 

the weird thing is i have used an hard disk  (toshiba or hitachi i don't remember) with a linux distro for 2 days , and i have always booted in eufi this hard disk with a linux disto , after 2 days i have disconnected from the motherboard this hard disk and never plugged again

,and i'm talking about 4 months ago

 

well this entry is still in my Uefi bios , and i can't remove it

i have a dual boot ,w10 and w7 ,both in legacy , not uefi  , so i can't use easyuefi (the freeware)

 

is there a way to remove this entry from my bios ?

i guess it's in vram or really i don't know where is stored , becaue i tried to reset the bios but the entry is still there

 

what could i do?

thanks

[xendrome]

I literally have no idea what you are even saying....

[Mindovermaster Moderator]

There is a way in BIOS/UEFI to release these. In your motherboard manual it should show you how to do this. I found it by accident...

[adrynalyne]

They are stored on your drive. The only thing UEFI is doing is accessing that portion of your drive. 

https://en.m.wikipedia.org/wiki/EFI_system_partition

 

I imagine you could use a Linux live distro on a flash drive and remove them. https://superuser.com/questions/930725/how-to-delete-os-from-boot-menu

Edited November 5, 2017 by adrynalyne

[Mindovermaster Moderator]

34 minutes ago, adrynalyne said:

They are stored on your drive. The only thing UEFI is doing is accessing that portion of your drive. 

https://en.m.wikipedia.org/wiki/EFI_system_partition

 

I imagine you could use a Linux live distro on a flash drive and remove them. https://superuser.com/questions/930725/how-to-delete-os-from-boot-menu

I thought that was in your BIOS/UEFI, not your SSD/HDD... Interesting... Good to know...

[adrynalyne]

30 minutes ago, Mindovermaster said:

I thought that was in your BIOS/UEFI, not your SSD/HDD... Interesting... Good to know...

I did too until I recently went down this same road. 

[drugo]

1 hour ago, adrynalyne said:

They are stored on your drive. The only thing UEFI is doing is accessing that portion of your drive. 

https://en.m.wikipedia.org/wiki/EFI_system_partition

 

I imagine you could use a Linux live distro on a flash drive and remove them. https://superuser.com/questions/930725/how-to-delete-os-from-boot-menu

hi @adrynalyne

i have removed this drive months ago , but that entry was in my bios  , how could be stored in my drive?

i mean i read the link , but i guess they are not stored on my drive , just because i tried even to disconnect all my drives and that entry was again in my bios , i guess it's saved in nram

was -> because i fixed with ubutu live

thanks  appreciate it a lot

 

@Riva

thank you so much!

i have watched the video you posted and ubuntu live under usbstick and i have fixed it!

appreciate it , really

 

 

[adrynalyne]

2 hours ago, drugo said:

hi @adrynalyne

i have removed this drive months ago , but that entry was in my bios  , how could be stored in my drive?

i mean i read the link , but i guess they are not stored on my drive , just because i tried even to disconnect all my drives and that entry was again in my bios , i guess it's saved in nram

was -> because i fixed with ubutu live

thanks  appreciate it a lot

 

@Riva

thank you so much!

i have watched the video you posted and ubuntu live under usbstick and i have fixed it!

appreciate it , really

 

 

Your UEFI caches it. If all of your drives were truly removed, then a reset of CMOS settings should have fixed it. I’d say you had a drive you didn’t think was being used as a boot drive was storing it. 

[Circaflex]

On 11/5/2017 at 10:41 AM, adrynalyne said:

I did too until I recently went down this same road. 

I also had a hard time following the OP, what exactly was happening here? The device was still showing up as one of the bootable devices?

[adrynalyne]

6 minutes ago, Circaflex said:

I also had a hard time following the OP, what exactly was happening here? The device was still showing up as one of the bootable devices?

Modern UEFI caches bootloader entries on the EFI drive partition which is not traditionally formatted when doing a clean install. So as you install different OSes that use it like Linux, they tend to add up as you change from one distro to the next. It’s kinda messy but usually manageable with a disk utility of sorts. I suppose it’s also possible those cached entries don’t ever get cleared if the firmware is wonky.