Questions tagged [bios]
The Basic Input/Output System (BIOS) on an x86 PC is the firmware that performs the power-on self-test (POST) and initializes hardware.
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Create custom bootable linux image; not a livecd
So I've compiled my kernel and initrd. How can I then create an image and install grub to actually load this image from a disk? My goal isn't to create a livecd out of it that is bootable from USB, as ...
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Enable SPI flash device's power cycle write protection
Assume that an SPI flash chip is represented as /dev/spidev. How do I enable that flash chip's power-cycle write protection?
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Grub can't add entry for windows on another hard drive (dual boot)
Recently, I've installed Linux (MintOS) on my ssd drive. Also I have Windows 10 on my hdd drive. Windows was installed before linux.
The problem is that grub loader don't see windows loader and I can'...
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How to find system bios address in linux
I want to do some interaction with bios of a embedded linux on an AMD Ryzen embedded platform.
The main tool I think is flashrom which can read/write flash chips.
It should also be possible to write ...
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Having serious system problems, probably hardware related, after turning on memory mapping in BIOS for large Nvidia GPU
Dell Precision 7610 2 xeon 2650 v2 and 128gb ram.
In an effort to get a Nvidia Tesla gpu working in a Windows VM, and after jumping through some IOMMU hoops I was nearly there. Windows recognized the ...
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In which format C program should export to run on linux?
In windows we publish application in .exe format, so I have C program and I want to publish that application for linux. In which format I should publish it and how?
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How to integrate C program to minimal os using busybox
I am building minimal operating system using busybox. So I want to add my program in my operating system, so I can boot that program from BIOS. So how can I integrate aleast "Hello World" ...
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Problems with dual boot after linux pop os installation on a windows machine
I recently put a 128 GB SSD that i found lying around my house in my laptop. I then wanted to install Pop OS on it. I flashed it on a USB and did a Custom Installation.
The problem
I have a boot/efi ...
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How to check BIOS Settings from Terminal (CentOS 7)?
I am trying to verify three BIOS settings on remote Linux machines (Dell OptiPlex 3090) with CentOS 7 on them. I want to check AC Recovery is Enabled, Wake on LAN, and Block Sleep.
I've tried multiple ...
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Unable to install on UEFI anymore
I have an Acer Aspire E15 Start computer with which I have had a problem for a long time and which I cannot solve today.
One day I tried to install the latest version of the Debian operating system on ...
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CENTOS 7 disk cloned from image won't boot. Need new BIOS?
I'm trying to make my brand-new HP Z4G4 workstation boot to CENTOS 7 from its SSD drive, but after it indicated which kernel it's using, spins its wheel, and shows its faint "7" on the ...
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Can't boot OS installed in UEFI mode
My laptop is an Acer Aspire e15 Start.
The laptop BIOS has two boot modes: UEFI or Legacy.
When I install any operating system (either Linux or Windows) in UEFI, at the end of the installation and ...
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arch-linux entry disappeared from bios boot
I had to replace my disk for some time and after putting it back the linux is no longer available in the bios boot menu. Also this ASUS bios is not allowing to load an efi image (ASUS CM6731 version ...
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Many and various failures since upgrading GPU
Please help - getting desperate!
The main help I need is techniques/strategies/things to look for to diagnose a root cause!
I have been a long time user of OpenSUSE, moving from Leap stable versions ...
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Secure Boot & admin password
I have a PC with a mechanical interrupt in order to enable different hdds and use different OS.
Windows has bee installed with bios legacy. I want to install in the other HDD archlinux.
When I try ...
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What is this update exactly designed for? (new BIOS?)
I own a rather older piece of server, Dell PowerEdge T20, with the latest BIOS version A20, link to Dell updates, screen of the update in case link goes dead in time:
This morning, when SSH'd into ...
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Grub "no such device: ID" unless BIOS is accessed first
The core issue is my laptop bios, that i know for sure, but infortunately, i can't change it anyway after flashing a newer version.
My Main OS is stored on my SSD
My old OS is stored on my HDD, this ...
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How to cleanup bios boot sequence list in Linux?
After trying dozens of different Linux distributions on my computer the boot entry in the bios is clogged up. It is filled with various distribution names and some even appear more than once. How do I ...
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How can I delete boot entries?
I've been having some trouble with my system when trying to install/update kernels, and similar operations; commands like # bootctl install result in no space left on the device.
I have tried deleting ...
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GNU GRUB - Is there any negative in using a grub text-only mode to boot into Ubuntu/Mint?
Is "text" (GRUB_GFXPAYLOAD_LINUX=text) an acceptable long-term grub setting? Can it be presumed that the "GUI" (Mint Cinnamon X server etc) will faithfully take over to normal ...
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Is there a way to change the font style and size of texts from boot up like "Loading intitial ramdisk"?
I have an Aorus motherboard and what I've noticed was that when I installed Ubuntu, the Aorus logo when booting up was less-pixelated and there was even a spinner that looked cute and cool. Like here
...
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How to partiotion a disk for Debian install such as user files are independant from OS and BTRFS snapshot feature is enabled?
Hi everyone,
This is my first time installing Debian, and I'm trying to achieve that in legacy BIOS mode, but I'm having a bit of trouble finding the best way of partitioning my disk.
One way I found ...
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Can boot (power off, restart) but cannot reboot
Endeavouros Linux (Arch); non-UEFI PC.
I have dual booted my PC (Windows/Endeavouros). When I power-on my PC I get the Grub2 menu and all is well.
When I sudo reboot, or sudo shutdown -r now (I know ...
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AES instruction Is Disable in My VPS | How Software-Based Implementation Of AES In CentOS 7
My VPS is CENTOS 7.
I installed OpenVPN on this vps.
After open it's admin panel i received this error :
AES instruction set support has not been detected on this host. This
may cause performance ...
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Bios & ACPI incompatibility Gigabyte Motherboard and AMD Radeon RX 6650 XT (openSuSE Tumbleweed)
I recently managed to upgrade from an old Nvidia GeForce GTX 760 to AMD Radeon RX 6650 XT. I found the only way I could do this reliably was to reinstall openSuSE Tumbleweed. After the install I found ...
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How to boot using EFI with custom Ubuntu 22 image?
I have a customized Ubuntu ISO, generated with genisoimage until Ubuntu 20. Unfortunately, Ubuntu 22.04 removed isolinux from its ISO, see here: https://github.com/covertsh/ubuntu-preseed-iso-...
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Can't access BIOS on Dell Optiplex 9029 with Ubuntu
I have Ubuntu and Windows installed on separate partitions on a Dell Optiplex. The dual boot worked fine for a while but recently when I start the machine up it skips the Dell screen and goes straight ...
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AlmaLinux 9 microcode
microcode_ctl-20220207-1.20220510.1.el9_0.noarch.rpm is an AlmaLinux microcode patch RPM package.
What is the difference between BIOS microcode and OS (in this case, AlmaLinux 9) microcode?
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How to calculate boot time including (BIOS and boot loader) of RedHat 7 or 8 versions?
systemd-ananlyze time
gives me the time taken for kernel, initrd and userspace. How do I calculate for BIOS and bootloaders like GRUB2 etc which completes calculation of the boot time of the OS.
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UEFI pre-boot environment exception when booting with custom-built Linux kernel
I'm trying to build Linux kernel from scratch.
My current system with an Intel Xeon Gold 6242 CPU, running Linux 5.4.0-050400-generic kernel on Ubuntu 20.04.3 LTS.
The steps I have followed to build ...
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How do I check the BIOS version number on OpenBSD?
On Linux I would do something like dmidecode -s bios-version as root.
What is the equivalent for OpenBSD?
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Lenovo thinkpad T440s stuck on boot (broken BIOS?), after installing Fedora workstation 36 from USB
I have installed Fedora workstation 36 with USB media by Fedora media writer onto my laptop, Lenovo T440s. (The previous OS was Windows 10 pro)
Installation seemed to complete successfully, but after ...
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Install Linux without an installer: Can it be done? [duplicate]
I have a machine with Lubuntu on a very old Mobo, Asus P5KC with Megatrends BIOS v 2.58, and, although I could swear I installed it from a USB pen, the BIOS won't recognize any as a boot device (the ...
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How to get back my windows and windows loader?
I installed a Linux (Fedora) as second OS. I did like that so many times but with other distros. After installing I tried to boot in my first OS (Windows 11), but in a grub I didn't see her. I tried ...
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Can libvirt/qemu set the enoX number as if it were a physically numbered hardware port?
Recent Linux distributions use Predictable Network Interface Names (from udev) which states that "device names [like eno1] incorporate firmware or BIOS-provided index numbers for onboard devices.&...
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How to run custom kernel and initrd in UEFI?
I have a dev machine with BIOS and after compiling my kernel and initrd, I'm able to use it with a simple menuentry:
menuentry "mlinux" {
linux /boot/mlinuz quiet
initrd /boot/...
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HP Elitebook - Cant selec't linux mint as firts bootable OS
I have a second hand HP Elitebook Folio1040 that had windows10 installed. I deleted windows and installed Linux Mint Una (20.3), rebooted the PC but I can't manage to boot Linux automatically. After ...
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Why would Linux boot from a USB drive but not a hard drive?
I have a x86_64 Linux Kernel, with EFI_STUB enabled, and packaged into a EFI System Partition that I compiled using Buildroot. It generally will boot on any machine by just dd'ing it to a device and ...
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Reset my BIOS. Now how do I fix "Invalid signature detected. Check Secure Boot Policy in Setup."?
Follow up to Grub updated and now I can't get in to the BIOS, how can I fix it?. Short version: couldn't boot to a USB thumbdrive after updating grub. I reset the BIOS to factory default (with the ...
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Grub updated and now I can't get in to the BIOS, how can I fix it?
Mint 20.2 system. Need to get to the BIOS so that I can boot from the USB stick into GParted, which is suddenly not happening automatically. I upgraded all my packages an hour ago (pretty sure grub ...
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GRUB menu selection problem on dual boot windows10 and Ubuntu 22.04 encrypted
The Grub menu appear a fraction of a second (flickered), and auto launch the first option in it's menu, which is Ubuntu.
The problem appear after I reinstalled Ubuntu22.04 Encrypted. I don't know if ...
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Is my server using Legacy BIOS or UEFI?
I am little confused about something. I have a server on Digital Ocean, I want to know either BIOS or UEFI used for system startup.
I have tried following things:
root@debian:~$ dmidecode -t 0
# ...
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Secure Boot is enabled and cannot be toggle off in Bios
The problem is pretty self explanatory. I am using bios 2103 on an Asus Z87-Expert. I need to disable secure boot for this reason. My machine dual boots to windows or linux mint using Grub. See ...
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Unmount /boot after booting
For some highly secure bastion VMs I'll implement soon, I am considering to unmount /boot after booting - among other measures of course. Will be mounted only for updating kernel.
Testing this, no ...
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Dual Boot isn't working; cannot come back to Windows
Two days ago I try to make a dual boot (I have BIOS Legacy) installing Ubuntu 21.04 in addition to Windows 10.
Initially I think all was ok, I formatted an USB and converted it in a flash memory with ...
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Dual boot keeps booting to windows
My setup:
1 hdd with Windows 10 installed
1 ssd with Archlinux using systemd-boot installed
Motherboard: MSI X470 Gaming Pro
I first installed Arch, then Windows 10 and the dual boot worked like a ...
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Grub w/Kali Linux Dual Boot not working after Motherboard replacement
After the replacement of the motherboard, grub is not visible on startup.
Before replacement, grub boot loader used to show up on startup with Kali Linux, Windows 11 options available.
I can manually ...
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laptop second hdd in caddy does not show in bios but shows up after ubuntu boots
I have installed a second HDD in my notebook via a DVD-HDD caddy. My laptop is a Lenovo Ideapad 110 15ISK
I want to dual boot Ubuntu (primary SSD) with Fedora (caddy HDD).
My observations:
caddy with ...
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No linux will boot after BIOS update
I am now leaning towards a hardware problem, any advise is appreciated..
Gigabyte Z590 Vision D
I9 11900K
3 Nvme SSD's - one Western Digital, one Sandisc, one Samsung
RTX 3090
TPM Enabled > this ...
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The process going on in BIOS and UEFI when they want to choose bootloader in dual boot systems
I learned something about bootloader, UEFI and BIOS but now i have question about them.
at first I want to know how BIOS can decide which bootloader should load in dual boot systems
In UEFI i know we ...
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