similar to: EFI boot order rewrite

Hi, Thank you for your answer. That would only solve the problem at initial bootup but not for already installed systems. Inserting such a solution into a late running service would be no option due to it?s destroying the boards storage over time because of the many writes. On Debian/Ubuntu, there are a couple of grub2 debconf parameters. Unfortunately, there seems to be no such system like

All of the following is still under the Centos 7 KDE Live CD: If I mount /dev/sda2 on /media and have a look, this is the valid EFI filesystem, including the Fedora and Centos entries. If I try to mount /dev/sda6 on /media it looks to be a valid /boot filesystem. If I mount /dev/sda6 as /boot and mount /dev/sda2 as /boot/efi before running Jim's efibootmgr command will I fix the problem

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

Hi Jim, Thanks for this. I looked into what you said, and once happy I ran the command you gave. It appeared to work as it did not come up with any errors, and the output from efibootmgr showed 1) Centos had been added as an option and 2) it was the first in the boot sequence. However, when I rebooted the laptop went straight into Win8, and after rebooting back into KDE Live, the option is

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 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 Wed, Sep 14, 2016 at 9:06 AM, Gary Stainburn <gary at ringways.co.uk> wrote: > I don't know if this additional information helps. Looking at he efibootmgr > output, is the centos entry pointing to the right place? > > Also, any idea why the update isn't being make permenant? Probably because the specified file wasn't found by the firmware on partition 1, so it

Exactly what efibootmgr command are you using? Chris Murphy

----- 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

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

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

I have managed to boot into the installed Centos system, without using the KDE live CD. By pressing F9 when turning on the laptop, I got the choose boot menu. When the menu appeared, it had the old Fedora install, the current Centos install as well as the Windows install. When I chose the Centos install it showed the GRUB menu and booted into Centos without error. This confirms that the

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 default, which apparently has taken over the UEFI boot. By booting from a USB

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

At Mon, 28 May 2018 18:23:42 -0700 CentOS mailing list <centos at centos.org> wrote: > > On 05/28/2018 03:25 PM, Robert Heller wrote: > > I tried to run efibootmgr, but it wants a model named efivars loaded, but > > there is no such module available. > > That's interesting.?? Can you post the command and output where you see that? > > Also, post the

On Thursday 30 May 2019 13:16:37 Jonathan Billings wrote: > This is all I was asking you to check. See the PARTUUID in the output > of blkid? PARTUUID="14c4ac1d-abd8-4121-84ee-c05a825920de" > It matches the UUID of the boot entry: > HD(2,GPT,14c4ac1d-abd8-4121-84ee-c05a825920de,0x145800,0x6400\0)/File(\EFI\centos\shim.efi) > > I do see you have 4 separate boot

On Thursday 15 September 2016 06:46:31 Chris Murphy wrote: > Exactly what efibootmgr command are you using? > Chris, They were included in my last email, along with the output # get the current state efibootmgr -v # set the boot order DVD, USB, Centos, Windows efibootmgr -o 2002,2001,0003,0002 # I have also tried 0003,0002,2002 # remove the expired Fedora option efibootmgr -b 0000

On 09/14/2016 07:40 AM, Gary Stainburn wrote: > 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

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

Sorry thinking about this problem at work, I'm using my cellphone. Won't get home until 1am. I run Gentoo. https://wiki.gentoo.org/wiki/Syslinux#Setup_on_EFI_systems is my distribution instructions on installing Syslinux. http://www.syslinux.org/wiki/index.php?title=Install#UEFI are your instructions. I have tried both instructions only to get a blank or black screen. Trying to make a