search for: efivars

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 output of "dmesg | grep efi:" and "ls /sys/firmware/efi/" newserver.wendellfreelibrary.org% sudo efibo...

CentOS Errata and Bugfix Advisory 2019:2023 Upstream details at : https://access.redhat.com/errata/RHBA-2019:2023 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: bb588f75eefd258c799813b611902f46b356e76f54e3e0b3b3c5245d9a64405a efivar-36-12.el7.x86_64.rpm dc774a696e1f6a5e799bce7edbb0b5cf59212fefbec05532747c968dec8e1e68

CentOS Errata and Bugfix Advisory 2019:0170 Upstream details at : https://access.redhat.com/errata/RHBA-2019:0170 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: c5919ab578cfa3467716983a3e892ce0c9ce0be41e90aeca2e55c5c905d783f8 efivar-36-11.el7_6.1.x86_64.rpm

Hi, I boot my Gentoo dom0 using grub2 + UEFI. The system can boot and works fine. But I cannot see "/sys/firmware/efi", and "modprobe efivars" gives me error. I am thinking maybe I should use the xen.efi to boot my system. But I have not succeeded in doing so. Please point me to the right direction. Thanks, [image: --] Xi Shen [image: http://]about.me/davidshen <http://about.me/davidshen?promo=email_sig> <http://abou...

...re boot) logic that wants the original disk, even if everything is moved over. I ended up putting the original /dev/sda in. The machine boots and is using the new system disk (a raid array in degraded mode). What is the magic to fix this? I tried to run efibootmgr, but it wants a model named efivars loaded, but there is no such module available. What am I missing? -- Robert Heller -- 978-544-6933 Deepwoods Software -- Custom Software Services http://www.deepsoft.com/ -- Linux Administration Services heller at deepsoft.com -- Webhosting Services

On 05/28/2018 06:58 PM, Robert Heller wrote: > 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. > newserver.wendellfreelibrary.org% sudo efibootmgr > [sudo] password for heller: > Fatal: Couldn't open either sysfs or procfs directories for accessing EFI variables. > Try 'modprobe efivars' as root. > newserv...

...s, but when I try to boot on a linux kernel, I get an error like "no such file or directory" while I see it download the file from the tftp. Is this a bug in syslinux? Or is there a deep incompatibility? And (a bit out of scope) if I get my old kernel to boot in EFI mode, will the driver efivars have access to the EFI variables? Or does the kernel need to be recompiled specially for EFI? Regards, Celelibi

...error like "no such >> file or directory" while I see it download the file from the tftp. >> >> Is this a bug in syslinux? >> Or is there a deep incompatibility? >> And (a bit out of scope) if I get my old kernel to boot in EFI mode, >> will the driver efivars have access to the EFI variables? Or does the >> kernel need to be recompiled specially for EFI? > > Doubtful. Yes (although I think most EFI kernels I've seen will > function for both). > > --Gene > _______________________________________________ > Syslinux mailing...

On Tue, Sep 24, 2013 at 11:57 PM, Gene Cumm <gene.cumm at gmail.com> wrote: > On Sun, Sep 22, 2013 at 3:09 PM, Celelibi <celelibi at gmail.com> wrote: >> And (a bit out of scope) if I get my old kernel to boot in EFI mode, >> will the driver efivars have access to the EFI variables? Or does the >> kernel need to be recompiled specially for EFI? > > Doubtful. Yes (although I think most EFI kernels I've seen will > function for both). Just to be clear, it requires enabling of `CONFIG_EFI_STUB` configuration variable rig...

I have installed dom0 Wheezy 64 bit on Dell PowerEdge T310 with kernel from package and xen-unstable. System is in Uefi mode and booted with grub-efi-amd64. Booting without xen efibootmgr works, while with xen not, efivars kernel module is loaded but show this message: efibootmgr Fatal: Couldn''t open either sysfs or procfs directories for accessing EFI variables. Try ''modprobe efivars'' as root. If you need some additional info please notify me, thanks for any reply. -- View this message i...

...ually loading it from the UEFI shell, and as a third option, you can EFI chain load it from Grub. > The chain loading pretty much means that grubx64.efi loads xen.efi just as you would from the shell or the bootmgr. > > There is one small catch: Xen on native EFI doesn?t give you a normal efivars system in dom0. > This has to be fixed on a lower level in either Linux or Xen. From what I?ve found out so far, the efivars are passed in a different way to Linux, > but Linux doesn?t know about it and therefore cannot use it. This is the only downside to the whole thing. However, if you onl...

...y shell? On 01/21/2016 09:47 PM, wk wrote: > How to check/get UEFI information by shell/bash terminal ? example:if UEFI is enabled? if secure boot is enabled? Systems that boot via UEFI will have /sys/firmware/efi. You may have access to your secure boot setting in /sys/firmware/efi/efivars/, or in the output of "bootctl --path /boot/efi status" _______________________________________________ CentOS mailing list CentOS at centos.org https://lists.centos.org/mailman/listinfo/centos

...h >>> file or directory" while I see it download the file from the tftp. >>> >>> Is this a bug in syslinux? >>> Or is there a deep incompatibility? >>> And (a bit out of scope) if I get my old kernel to boot in EFI mode, >>> will the driver efivars have access to the EFI variables? Or does the >>> kernel need to be recompiled specially for EFI? >> >> Doubtful. Yes (although I think most EFI kernels I've seen will >> function for both). >> >> --Gene > > Sorry for answering that late. (I had som...

...gt; Sorry for answering that late. (I had some issues with my server's >> Ethernet NIC, and without it, no PXE / syslinux.) >> >> So, it's time to be a bit more specific. >> The kernel I want to boot in EFI mode is a debian installer. It *has* >> a module "efivars" loaded. Which means this kernel has been compiled >> with CONFIG_EFI_VARS, which itself depends on CONFIG_EFI. Therefore I >> should be able to boot this kernel in EFI mode. >> >> I don't remember whether I tried or not, so I'll re-test ASAP. >> However,...

...r Linux to get this UUID (for the new disk(s)) and fill it in, but I cannot figure out what. Maybe efibootmgr has something to do with it, but efibootmgr does not work, either on a live system or a system booted from a DVD (CentOS 6.9 boot/install DVD) -- efibootmgr wants a kernel module named efivars that does not seem to exist. At Mon, 28 May 2018 18:25:39 -0400 (EDT) CentOS mailing list <centos at centos.org> wrote: > > OK, I wanted to replace the 500G disks in a Dell T20 server with new 2TB > disks. The machine has 4 SATA ports, one used for the optical disk and three &...

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

...test it by manually loading it from the UEFI shell, and as a third option, you can EFI chain load it from Grub. The chain loading pretty much means that grubx64.efi loads xen.efi just as you would from the shell or the bootmgr. There is one small catch: Xen on native EFI doesn?t give you a normal efivars system in dom0. This has to be fixed on a lower level in either Linux or Xen. From what I?ve found out so far, the efivars are passed in a different way to Linux, but Linux doesn?t know about it and therefore cannot use it. This is the only downside to the whole thing. However, if you only want to...

...7 PM, wk wrote: > > How to check/get UEFI information by shell/bash terminal ? > example:if UEFI is enabled? if secure boot is enabled? > > Systems that boot via UEFI will have /sys/firmware/efi. > > You may have access to your secure boot setting in > /sys/firmware/efi/efivars/, or in the output of "bootctl --path > /boot/efi status" > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos > _______________________________________________ > Ce...

...itself, and > most of this will go away. > > Ian. > Well, there is one more thing: If kernel 3.17 manages to get in before the kernel freeze, full-fledged Xen-EFI support will be baked into the kernel by default! 3.17 has been patched to provider hypercall support for Xen to get the efivars facility (and pretty much anything and everything else EFI) working for Dom0. Now, I?ve seen some messages on the mailing list where three people actually want to freeze the kernel on 3.16, but since 3.17 is on RC4 already and due to be released really soon (like, in 4 to 5 weeks) with a bit of l...

...e only occurs when the grub2/shim/mokutil updates are applied. [root at xxx -]ls -la /sys/firmware/efi total 0 drwxr-xr-x 5 root root 0 Aug 4 17:12 . drwxr-xr-x 7 root root 0 Aug 4 14:30 .. -r--r--r-- 1 root root 4096 Aug 4 17:12 config_table drwxr-xr-x 2 root root 0 Aug 4 14:30 efivars -r--r--r-- 1 root root 4096 Aug 4 17:12 fw_platform_size -r--r--r-- 1 root root 4096 Aug 4 17:12 fw_vendor -r--r--r-- 1 root root 4096 Aug 4 17:12 runtime drwxr-xr-x 10 root root 0 Aug 4 17:12 runtime-map -r-------- 1 root root 4096 Aug 4 14:31 systab drwxr-xr-x 23 root root 0 Aug 4...