similar to: Re-enable grub boot in UEFI (Windows took over it)

Hello Chris, On Thu, 01 Feb 2018 17:00:03 +0000 Chris Murphy <lists at colorremedies.com> wrote: > You can to use efibootmgr for this. NVRAM boot entry is what changed, not > the contents of the EFI System partition. > > efibootmgr -v > > Will list all entries and Boot Order. You need to use --bootorder to make > sure the CentOS entry is first. Interesting.. thanks

On Mon, Feb 5, 2018 at 8:27 AM, Kay Diederichs <kay.diederichs at uni-konstanz.de> wrote: > grub-install /dev/nvme0n1 Running this on computers with UEFI firmware is not good advice, it's an obsolete command. People should use the prebaked grubx64.efi binary that comes in the grub2-efi package, and is a signed binary so it can support UEFI Secure Boot. If you run grub2-install, a

On 02/01/2018 12:15 PM, wwp wrote: > Hello there, > > > Dell XPS-15-9560 laptop (SSD drive, UEFI, secure boot off).. Windows 10 > pre-installed, CentOS7 installed in a separate partition and running > for months w/o issue. Don't know what happened but at reboot yesterday > (not even booted in Windows, just rebooted), grub has disappeared, > booted in Windows by

On Thu, Feb 1, 2018 at 10:13 AM, wwp <subscript at free.fr> wrote: > Hello Chris, > > > On Thu, 01 Feb 2018 17:00:03 +0000 Chris Murphy <lists at colorremedies.com> wrote: > >> You can to use efibootmgr for this. NVRAM boot entry is what changed, not >> the contents of the EFI System partition. >> >> efibootmgr -v >> >> Will list all

I am running an Intel x64 machine using UEFI to boot an SSD. Installing the latest yum update which includes grub2 and kernel 4.18.0-193.14.2.el8_2.x86_64 renders the machine unbootable, blank screen where grub should be, no error messages, just hangs. After some hours I managed to modify another bootable partition (containing older software) and boot it from there. After that, I? found out

On Tuesday 28 May 2019 19:52:02 Jonathan Billings wrote: > I suggest running 'blkid' and 'efibootmgr -v', and double-check that > the UUID for the CentOS boot entry matches the UUID of the EFI disk. > > You can delete and recreate the boot entry with 'efibootmgr', which > will likely solve the problem. > > It depends on the UEFI implementation, but

----- Oorspronkelijk bericht ----- Van: "Adrian Jenzer" <a.jenzer at herzogdemeuron.com> Aan: "CentOS mailing list" <centos at centos.org> Verzonden: Dinsdag 9 januari 2018 16:56:57 Onderwerp: Re: [CentOS] update to Centos7.4: Failed to open \EFI\BOOT\grubx64.efi - Not Found -----Original Message----- From: CentOS [mailto:centos-bounces at centos.org] On Behalf Of

Hello All, updating from Centos7.3 to Centos7.4 rendered one of our laptops unbootable. EM: Failed to open \EFI\BOOT\grubx64.efi - Not Found Failed to load image \EFI\BOOT\grubx64.efi: Not Found start_image() returned Not Found How could this occur because of an update and how to fix this? What I tried is booting from centos usb, chroot to /mnt/sysimage and gave command: efibootmgr

----- Original Message ----- | On Thu, Aug 18, 2016 at 11:57 AM, James A. Peltier <jpeltier at sfu.ca> wrote: | > Hi All, | > | > I have a Dell R710 that has 6x1TB in a RAID-5 configuration. | | | This is hardware RAID 5? Because it's pretty screwy how this ends up | working when using software RAID and might take additional | troubleshooting. Yes, it's a Dell R710XD |

I had to boot my HP Envy into Win8 for the first time in ages this morning. When I did that, it installed some updates including a BIOS update. Once this was all done, once again the GRUB boot menu was gone and it booted straight into Win8. Using the advanced boot manager options in Win8 I managed to get the EFI boot menu up and chose Ferdora 21. It was only after Fedora failed to boot that

I have a IBM System x3600 series server with UEFI. I managed to compile the xen EFI (xen-4.2-unstable.efi). The machine is currently running Ubuntu with grub2. I can see a grubx64.efi in /boot/efi/EFI/ubuntu/grubx64.efi Where should I put the xen efi ? I tried creating a efi/EFI/xen/xen-4.2-unstable.efi and added it as a boot option using efibootmgr. All I get in that case is a blank screen. I

----- Original Message ----- | On Fri, Aug 19, 2016 at 4:59 PM, James A. Peltier <jpeltier at sfu.ca> wrote: | > | > | > ----- Original Message ----- | > | On Thu, Aug 18, 2016 at 11:57 AM, James A. Peltier <jpeltier at sfu.ca> | > | wrote: | > | > Hi All, | > | > | > | > I have a Dell R710 that has 6x1TB in a RAID-5 configuration. | > | | > | |

Hi All, I have a Dell R710 that has 6x1TB in a RAID-5 configuration. When installing CentOS 7 using the full disk capacity and booting in UEFI mode the machine dumps me into a GRUB rescue mode prompt. error: disk `,gpt2' not found Entering rescue mode... grub rescue> If I use the PERC RAID controller to make the disk smaller ROOTDISK volume of 100GB in size and then a DATA volume

Morning all, I have a HP Envy dual boot system (Win8 for serious stuff, i.e. Train Sim and Flight Sim) and Centos 7 for everything else. In the past I've had the occasional problem where an update on the windows side has updated the UEFI boot sequence but using efibootmgr has always fixed it. On Friday I discovered that my HDD was failing so I tried using Clonezilla to move it on to a new

Hello all, and hope all is well Has anyone installed / on an nvme ssd for Cent 7? Would anyone know if that is supported? I have installed using Arch Linux, but at the time, mid last year, had to patch grub to recognize nvme. Arch is obviously running a much more recent kernel. Not afraid todo some empirical leg work. Just asking if anyone had tried already thanks all for any/all help regards

On Sun, 2014-09-07 at 00:02 +0200, John Keates wrote: > How do I assist with getting this in for Jessie? > > I have this working in a fairly easy setup, it basically only requires > the pep target to be on for debian?s Xen package, What is "pep"? > and a tiny bit of infrastructure to get xen.efi, vmlinuz, an initrd > and a xen.cfg on to the ESP partition and letting

hi guys I've one box where I just yesterday upgraded Centos. I wonder if that kernel upgrade process might somewhat troublesome. After that upgrade UEFI boot fails with: Failed to set MokListRT: Invalid Parameter Something has gone seriously wrong: import_mok_state() failed : Invalid Parameter Has anybody seen that? And maybe know to fix it? many thanks, L.

hi guys I have a box on which UEFI boot has gone haywire and instead of boot it power the box down, that is before even going to grub2. (displays some error message) I if change to BIOS boot then I can start Centos' rescue - my question is: how can I rescue, re-build grub so it would boot from tradition BIOS? many thanks, L.

I forgot to mention that the problem has nothing to do with the kernel being tainted (due to VMware server). I installed VMware server after being faced with the crashes, to give the Java user a "sandbox" which s/he could crash without taking down the real server. Only then I discovered that VMware server has a memory limitation to 3600MB (I guess because it's not a 64bit

This issue has been around for some months, but other things keep crowding out a fix. uname give me 3.10.0-1160.36.2.el7.x86_64 #1 SMP Wed Jul 21 11:57:15 UTC 2021 yet I have 3.10.0-1160.76.1.el7.x86_64 3.10.0-1160.81.1.el7.x86_64 3.10.0-1160.83.1.el7.x86_64 3.10.0-1160.88.1.el7.x86_64 loaded. The system uses UEFI to boot. sudo ls -l /sys/firmware/efi gives: total 0 -r--r--r--.? 1 root