search for: shimx64

...fibootmgr -t 10 To increase time to edit efibootmgr -c -d /dev/sda -p1 -L ja_C7 -l '\EFI\centos\grubx64.efi' -c create new entry -d Device -p vfat partition number -L Label -l boot loader The choice for the "boot loader" option would seem to be shimx64.efi shimx64-centos.efi shim.efi grubx64.efi Which version is correct is unknown, but '\EFI\centos\grubx64.efi' was the first tried and works! The resultant entries look like this: [root at maui:/boot/efi/EFI/centos]$ efibootmgr -v BootCurrent: 0006 Timeout: 10 seconds BootOrder: 0002,0001...

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

...e, I could use its grub command prompt to inspect the UEFI of the local SSD drive, see that the centos/ sub-directory and files are still there. /boot/efi/EFI/centos/: BOOT.CSV BOOTX64.CSV fonts grub.cfg grub.cfg.1501243846.rpmsave grub.cfg.1505469290.rpmsave grubenv grubx64.efi mmx64.efi shim.efi shimx64-centos.efi shimx64.efi maybe /boot/efi/EFI/Boot/ contents has been altered? /boot/efi/EFI/Boot/: bootx64.efi fbx64.efi I had a backup of the full efi partition (`dd`) but it's outdated and I feel it's a bad idea to restore the partition from it. Still from this "external" grub...

...l SSD drive, see that the > centos/ sub-directory and files are still there. > > /boot/efi/EFI/centos/: > BOOT.CSV > BOOTX64.CSV > fonts > grub.cfg > grub.cfg.1501243846.rpmsave > grub.cfg.1505469290.rpmsave > grubenv > grubx64.efi > mmx64.efi > shim.efi > shimx64-centos.efi > shimx64.efi > > maybe /boot/efi/EFI/Boot/ contents has been altered? > > /boot/efi/EFI/Boot/: > bootx64.efi > fbx64.efi > > I had a backup of the full efi partition (`dd`) but it's outdated and > I feel it's a bad idea to restore the partition f...

...t way :) ). I'm using dnsmasq as my DHCP server, so I have this in its config (where pxesrv.cmadams.net has IP 10.10.10.2): ******************** # EFI boot will set ARCH option (93) dhcp-match=set:efi64,option:client-arch,7 tag-if=set:bios,tag:!efi32,tag:!efi64 # PXE boot dhcp-boot=tag:efi64,shimx64.efi,pxesrv.cmadams.net,10.10.10.2 dhcp-boot=tag:bios,bios/lpxelinux.0,pxesrv.cmadams.net,10.10.10.2 dhcp-option-force=lan,209,pxelinux.conf ******************** In my TFTP root, I then extract the following RPMs into subdirectories (from Fedora 29 currently): syslinux-tftpboot shim-x64 grub2-e...

At Mon, 28 May 2018 19:30:25 -0400 CentOS mailing list <centos at centos.org> wrote: > > On May 28, 2018, at 18:25, Robert Heller <heller at deepsoft.com> wrote: > > > I tried to run efibootmgr, but it wants a model named efivars loaded, but > > there is no such module available. > > Are you not running a CentOS kernel? That module should be available.

...?? 1024 Aug 26? 2021 grubenv -rwx------. 1 root root 1125704 Dec 17 06:13 grubx64.efi -rwx------. 1 root root 1154640 Aug? 1? 2020 mmx64.efi -rwx------. 1 root root 1154640 Aug? 1? 2020 MokManager.efi -rwx------. 1 root root 1243864 Aug? 1? 2020 shim.efi -rwx------. 1 root root 1237824 Aug? 1? 2020 shimx64-centos.efi -rwx------. 1 root root 1243864 Aug? 1? 2020 shimx64.efi and we see that the grub.cfg is being updated. However, here the grubenv file contains # GRUB Environment Block saved_entry=CentOS Linux (3.10.0-1160.36.2.el7.x86_64) 7 (Core) ####################################################...

...The volume UUID is stored in the > filesystem header (I believe). > > For example, on my laptop: > > # efibootmgr -v | grep Fedora > Boot0000* Fedora > PciRoot(0x0)/Pci(0x17,0x0)/Sata(2,65535,0)/HD(1,GPT,39484dd8-b1d9-47b2-b4d7-89dfe3ce5e09,0x800,0x12c000)/File(\EFI\fedora\shimx64.efi) > > # blkid | grep sda1 > /dev/sda1: LABEL="ESP" UUID="3850-574E" TYPE="vfat" PARTLABEL="EFI > System Partition" PARTUUID="39484dd8-b1d9-47b2-b4d7-89dfe3ce5e09" > > # sgdisk -i1 /dev/sda > Partition GUID code: C12A7328-F...

We have a working PXE setup. I've tried to adapt it to UEFI as per RHEL6 manual, but the client won't boot. Strangely, tcpdump shows that the client tries to download all files via tftp from the dhcp server rather than the tftp server (they are different). next-server is pointing to the tftp server. Any clues?

...c4ac1d-abd8-4121-84ee-c05a825920de,0x145800,0x64000)/File(\EFI\fedora\shim.efi) Boot0004* CentOS Linux HD(2,GPT,14c4ac1d-abd8-4121-84ee-c05a825920de,0x145800,0x64000)/File(\EFI\centos\shim.efi) Boot0005* CentOS HD(2,GPT,14c4ac1d-abd8-4121-84ee-c05a825920de,0x145800,0x64000)/File(\EFI\centos\shimx64.efi) Boot2001* USB Drive (UEFI) RC Boot2002* Internal CD/DVD ROM Drive (UEFI) RC Boot3000* Internal Hard Disk or Solid State Disk RC Boot3002* Internal Hard Disk or Solid State Disk RC [root at gary ~]# efibootmgr -o 4,2001,2002,2 BootCurrent: 0004 Timeout: 0 seconds BootOrd...

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

...rtition UUID is stored in the GPT.? The volume UUID is stored in the filesystem header (I believe). For example, on my laptop: # efibootmgr -v | grep Fedora Boot0000* Fedora PciRoot(0x0)/Pci(0x17,0x0)/Sata(2,65535,0)/HD(1,GPT,39484dd8-b1d9-47b2-b4d7-89dfe3ce5e09,0x800,0x12c000)/File(\EFI\fedora\shimx64.efi) # blkid | grep sda1 /dev/sda1: LABEL="ESP" UUID="3850-574E" TYPE="vfat" PARTLABEL="EFI System Partition" PARTUUID="39484dd8-b1d9-47b2-b4d7-89dfe3ce5e09" # sgdisk -i1 /dev/sda Partition GUID code: C12A7328-F81F-11D2-BA4B-00A0C93EC93B (EFI Sys...

...> > filesystem header (I believe). > > > > For example, on my laptop: > > > > # efibootmgr -v | grep Fedora > > Boot0000* Fedora > > PciRoot(0x0)/Pci(0x17,0x0)/Sata(2,65535,0)/HD(1,GPT,39484dd8-b1d9-47b2-b4d7-89dfe3ce5e09,0x800,0x12c000)/File(\EFI\fedora\shimx64.efi) > > > > # blkid | grep sda1 > > /dev/sda1: LABEL="ESP" UUID="3850-574E" TYPE="vfat" PARTLABEL="EFI > > System Partition" PARTUUID="39484dd8-b1d9-47b2-b4d7-89dfe3ce5e09" > > > > # sgdisk -i1 /dev/sda > &...

...100% certain on CentOS And what you'll get back is a line that contains the efibootmgr command that was used during the installation. So you'll need to modify the forward slashes for it to work, something like this: sudo efibootmgr -c -w -L CentOS -d /dev/sda -p 2 -l \\EFI\\redhat\\grub\\shimx64.efi Option 2: At least on Fedora 27 + Windows 10, this is what my ESP contains: ??? EFI ? ??? Boot ? ? ??? bootx64.efi ? ? ??? fallback.efi ? ? ??? fbx64.efi Those are Fedora installed default bootloaders. So if you wipe out all the NVRAM boot entries, these get used first. And wh...

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

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.