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Questions tagged [uefi]

Unified Extensible Firmware Interface (UEFI) is a specification that defines a software interface between an operating system and platform firmware (BIOS)

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CentOS 6 installation crashes when trying to boot media from BIOS set to UEFI mode

I'm trying to install CentOS 6 on Dell R410 server. As I need a GPT large disk support, I set the BIOS to UEFI configuration. The problem is that I'm getting crashes once the server tries to boot from the media. Any idea what I can do to continue…
SyRenity
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Installing Windows Server 2008 on IBM x3250 M3 Server with EFI

I'm hoping this question hasn't been asked before and I've spent the last 3 hours trying to find a solution to this but to no avail. Also feel free to edit the tags, I'm fairly new to this site. I have a bootable Windows Server 2008 DVD that I'm…
Marko
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What are the implications of GPT when attempting image-based deployment for workstations?

I've got 13 machines with identical hardware that I need to deploy. The machines all have the new UEFI standard, which apparently forces GPT regardless of disk size. I've thus far been unsuccessful in attempting to restore a Windows 7 image using…
rawsted
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Installing VMware ESXi 4.1 on Dell PowerEdge T610 using UEFI

I would like to know if it is possible to install VMware ESXi 4.1 on Dell PowerEdge T610 but using UEFI (not BIOS)... I have seen some references on the net saying that ESXi 4.1 is UEFI aware OS ? while this post does not list it as UEFI aware... I…
zam6ak
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NVMe drive disappears after kernel panic

I'm working on imaging a Dell OptiPlex Micro 3000 device with Linux (custom Yocto-based OS). Grub version 2.04. I'm using an A/B partitioning scheme and trying to get the fallback to function properly but I think I might be running into a conflict…
mitchellJ
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netbooting CentOS via PXE and UEFI : unable to mount root over nfs -- failed to switch root path /sysroot

Last weekend, I went down the rabbit hole of trying to netboot rockylinux on raspberry pi 4. I was able make it work as far as being able to boot the kernel. But I fail to properly nfs mount root. I get the error: Failed to switch root path …
Kabira K
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How tofind the kernel driver name for the pcie controller in a running linux system booted from uefi/acpi?

I have an Ampere ARMv8 server running Ubuntu 20.04. I want to find out the kernel driver used for the PCIe controllers. How should I do? My purpose is to prove a hypothesis that for a server (which has UEFI/ACPI capability) to install official…
bruin
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Can grub2 chainloader a efi application on a filesystem other than FAT32?

I have a efi application in XFS partition. (hd0,gpt2)/test/EFI/BOOT/BOOTX64.EFI I try to chainloader it by: set root="(hd0,gpt2)/test" chainloader /EFI/BOOT/BOOTX64.EFI But chainloader failed with cannot find (hd0,gpt2)/test. Does this means the…
Wang
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How should the EFI System partition be made redundant without using hardware RAID?

What is BCP for making the EFI System partition redundant without using hardware RAID? If I create 3x EFI System partitions on different devices and then backup any changes made to the primary (mounted at /boot/efi) to the backup devices (mounted at…
Neil Stockbridge
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How to use EFI Shell to recover from SELinux Lockout?

I enabled SELinux on my Centos 8 box and now I can't get back into the server. It's hosted with a company, so I don't have physical access to it. But I do have access to advanced boot options, including the EFI shell. I am thinking if I can get…
rockstardev
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how to load grub with menu in ipxe setup

I am trying to setup an ipxe environment on a vmware. I would like to configure the setup with UEFI. I have setup a ubuntu-server and configured it as pxe-server. via downloading ipxe, isc-dhcpd, tftp-hpa and ngnix. The dhcp isc-dhcp.conf looks…
Ruchir Bharadwaj
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Is it possible to update AMI bios from Linux?

I have a motherboard on Supermicro server (model X9SCM(+)/X9SCM). And it is not possible to update it via Supermicro Update Manager - looks like bmc just cannot communicate with bios at all on this motherboard. I have read that AMI joined LVFS…
Ashark
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PCIe - Training error on device - Link degraded, macLinkWidth = x16, negotiatedLinkWidth = x8

i've placed a pcie raid adapter card with onboard ssd's (AORUS RAID ADAPTOR built in with 4 x PCIe 3.0 512GB NVMe SSD) in a new (2020) Dell (Optiplex 7080). the system boots fine most times, but it tends not to find the drive during a soft reboot,…
vulgarbulgar
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INACCESSIBLE BOOT DEVICE on Windows Server 2019 after Windows update installation

Was doing routine updates and one of our Windows Server 2019 hypervisors didn't come back up afterwards. Instead it gives the error "INACCESSIBLE BOOT DEVICE". I've followed various guides to rebuild BCD, fix MBR (even though it's GPT and as I…
ryansin
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Chain loading grub2 via PXELINUX for UEFI CentOS 8 installation

We support multiple linux distributions and we install them via the UEFI version of pxelinux. Before CentOS 8 you could just directly load the kernel and the initrd via the UEFI version of PXElinux. Starting with CentOS 8 for some reason you now…
ZCT
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