All Questions
221
questions with no upvoted or accepted answers
4
votes
3
answers
9k
views
Lenovo G505s and "Default Boot Device Missing or Boot Failed."
I am Using Lenovo G405s and running Windows 8 on my laptop, and whenever I turn on the laptop this error pops up -
SATA HDD : WDC WD5000LPVT-24G33T1 boot failed SATA ODD :
MATSHITA DVD-RAM ...
- 106
3
votes
1
answer
250
views
Changing Apple EFI for Xeon microcode
I have Mac Pro 3,1. I have just bought 2x Xeon E5450 SLBBM E0 stepping and found that there are unsupported by my Mac Pro.
I tried to google for this problem and found that only SLANQ C0 stepping ...
3
votes
0
answers
794
views
How do I change UEFI boot order when the BIOS (the firmware) does not have that option?
I want to change the boot order to default to rEFInd but the system always boots to Windows 10 and I have to use F10 method to boot into Linux via grub and rEFInd. I want to boot into rEFInd by ...
3
votes
0
answers
4k
views
How to install Ubuntu on Odys Winbook 14 - USB booting via uefi not working
I couldn't figure out yet how to install Ubuntu on an Odys Winbook 14.
Stats:
Intel® Celeron® Quad Core Processor with up to 4x 2,2 GHz Burstspeed
35,56 cm (14") 16:9 Full-HD IPS Display (1.920x1....
- 131
3
votes
0
answers
1k
views
Laptop not booting from any bootable device (UEFI broken?)
I was trying to install Debian in a dual boot with the already installed Windows 10 on my laptop. Now when I boot up the PC it shows the Dell logo and the options to press F2 for Setup and F12 for ...
3
votes
1
answer
8k
views
how to disable hard drives in UEFI bios?
sometimes I need to disconnect a hard drive. I have to open my computer and unplug the sata power cable.
I am wondering if its possible to disable the hard drive in UEFI bios.
I am using asus p8p67 ...
- 255
2
votes
1
answer
317
views
My UEFI doesn't boot normally after a normal CMOS reset
It started with my computer hanging at the posting screen (the HP logo with a text under it that says: "protected by hp sure start"), it kept hanging for MINUTES before it goes to boot my OS....
2
votes
1
answer
2k
views
Restarts boots into BIOS. Turn off/on boots into Linux
On a fitlet-H PC I have installed a brand new SSD SAMSUNG 870 EVO 1 TB. I have tried installing both Linux Mint and Ubuntu MATE and I have the same boot issue.
If I turn off the PC and then turns it ...
- 21
2
votes
0
answers
525
views
Linux freezes on reboot. Requires BIOS change to windows8 from win7
I use an Intel celeron J1900 based Nano-itx board (http://www.qotom.net/product/17.html ) which runs ubuntu linux. When reboot command is typed on console, the system freezes after few seconds. The ...
2
votes
0
answers
958
views
Custom Secure Boot keys not working
I successfully installed Debian Stretch on my ASUS G750JZ laptop with Secure Boot turned off. Now I'm interested in enabling it, so I created my own PK, KEK and db keys and uploaded them into my BIOS. ...
- 21
2
votes
0
answers
2k
views
Booting from USB/CD on Lenovo y510p
I forgot my windows 7 password on a Lenovo y510p laptop. I'm trying to boot from CD, in order to reinstall the OS or boot from USB to reset the password. Both options fail because of EFI security ...
- 121
2
votes
0
answers
567
views
Bootloaders - Booting an MBR only OS using a UEFI only BIOS
A long time ago, in a computer lab far far away, I stumbled upon a bootloader which dared to cross the boundaries between MBR and EFI.
It's name was Clover.
Using clover, you could boot any number ...
- 897
2
votes
0
answers
5k
views
Booting SD card from UEFI
I've come across the problem.
I'm trying to boot a bootable SD Card using UEFI.
However, this doesn't work, as there is no "SD Card" boot option AFAIK.
I have tried putting all the USB-related ...
- 21
2
votes
0
answers
2k
views
Boot from CD using UEFI instead of BIOS
I have a Lenovo IdeaPad Y510P. This is my last attempt at recovering my computer, as my recovery partitions are gone and I cannot boot into my computer otherwise. I have Windows 8 x64 OEM installed. I ...
- 41
2
votes
0
answers
752
views
Extract Samsung OEM recovery from laptop HDD
I have a Samsung NP540U3C with Windows 8. I recovered it to factory condition, booted and it was fine.
There were 107 Windows updates so I downloaded and installed them, rebooted and then I was ...
- 324
2
votes
0
answers
3k
views
How can I boot to DOS with a UEFI BIOS? (re: updating BIOS)
I have a Supermicro X9SCM-F motherboard and I'd like to upgrade the BIOS because I'm having trouble installing Windows 8.1 (and apparently I'm on a very old BIOS).
However, I can't seem to boot to ...
- 1,235
2
votes
0
answers
2k
views
Dual boot Windows 7 on pre-installed Windows 8 laptop
I have a newer HP laptop with preinstalled Windows 8. I want to dual boot Windows 7 with it, but am unable to boot to the USB. To start with, I downloaded an .iso from Microsoft that I then copied ...
- 101
2
votes
0
answers
283
views
System does not work anymore after migrating to UEFI
I have recently updated my BIOS to UEFI (big mistake...). When I boot in Windows 7 x64 now, it does not recognize any USB driver (even mouse and keyboard).I tried to use Windows Repair Disc to Restore ...
- 187
2
votes
3
answers
6k
views
turning on secure boot gives only a black screen
I have installed Windows 10 with secure boot off and now I want to install Windows 11. So I turned secure boot back on but, only a black screen shows after computer boots.
What I see - I can see POST ...
- 130
1
vote
0
answers
141
views
Move From Legacy to UEFI
I recently installed Fedora 39 on my system, but I only later realized that I did so in Legacy BIOS mode. Now, I'd like to switch to UEFI boot mode without having to reinstall the entire system. Is ...
- 11
1
vote
0
answers
96
views
Where to put payload on UEFI partition for it to be processed during boot (for firmware update)?
I've found out many (most?) firmware require a reboot to be updated and the way it works is new firmware data is put on UEFI partition (I've got an error of ~ "cannot find UEFI partition" ...
- 199
1
vote
1
answer
121
views
Dell BIOS, different boot entry after Auto-On-Time event
I want to make use of the Auto-On-Time feature in my Dell Latitude E7250. This feature sets the time of day when the system will turn on automatically. Is it possible to mod the BIOS to allow it to ...
- 19
1
vote
1
answer
23k
views
Update AMI American Megatrends BIOS via EFI/UEFI firmware shell
I have found an used gigabyte brixx nuc style pc and wanted to try to update it's bios for testing, because some other versions has been released. The device hasn't a direct flash utility inside so I ...
- 215
1
vote
0
answers
187
views
Why the TPM PCRs does not consider a UEFI settings change? If someone resets CMOS, it's undetected
In my laptop I've set up a bios pw when I power on the laptop, and once I enter it the laptop starts my linux distro and decrypts the disk without asking any other password. To do this I've set up TPM ...
- 254
1
vote
0
answers
1k
views
Installing 32bit windows in 64bit UEFI
I have a device and a software from the 2000' that only work on 32bit windows OS. I currently have an Asus ROG GA503 that runs 64bit win11.
I wanted to run windows 7 32bit on a USB stick so that I ...
- 11
1
vote
0
answers
80
views
How do I delete an old boot option that doesn't show in bcdedit?
I converted my ssd from MBR to GPT. Now in the BIOS I have 2 boot options with the same name, which is "SSD name Boot Manager". Booting into the first boot option doesn't work but the 2nd ...
- 382
1
vote
0
answers
395
views
Grub2 commands to automatically boot from Windows (UEFI installation & BIOS firmware)
The following chain of commands works when Windows is installed in UEFI and UEFI firmware is present. If Windows is installed in UEFI and that in combination with BIOS firmware the command will not ...
- 11
1
vote
0
answers
68
views
How is display initiated after sleep mode? Does the BIOS/OS uses the EFI partition?
I'm having some weird lines displayed in my screen after my computer goes to sleep mode and when I turn it on.
These lines are displayed randomly and I think it has something to do with the EFI ...
1
vote
0
answers
145
views
Computer spontaneously suspends & resets UEFI settings to default (motherboard power issue?)
Apologies for the long question, but I have a strange collection of (hardware?) problems I can't fully figure out by myself.
The device:
My computer is an Acer Nitro 7 (Acer AN715-51-76ML) which came ...
- 211
1
vote
0
answers
1k
views
Why is my motherboard not recognising my USB stick as bootable?
I created an USB flash drive with openmediavault v6 (not the installer, I mean I put the system on it).
I can use this flash drive to run OMV on the machine (a PC with a Gigabyte motherboard). I can ...
- 272