similar to: Bug#703586: Xen fails to boot Linux dom0 under UEFI

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

I?ll explain what?s happening first, and list the steps after that. First: pep is short for the Xen target x86_64-pep. It?s a target you can enable when configuring Xen to create an EFI binary. What is happening with Xen on UEFI via Grub is that it doesn?t give the kernel any info on the ACPI root pointer. Basically, this means that Linux won?t be able to do ACPI, and therefore a ton of hardware

As an addition to anyone having issues with booting but only getting 1 CPU and a ton of devices that misbehave, check to see if you have an RSDP in Xen and Linux. You should have both (I use xl and not xm): sudo xl dmesg | grep RSDP (XEN) ACPI: RSDP DDA4A000, 0024 (r2 SUPERM) and sudo dmesg | grep RSDP [ 0.000000] ACPI: RSDP 00000000000f0010 000024 (v02 SUPERM) I?m running this on a

On Wed, 10 Sep 2014 20:22:54 +0100 Ian Campbell <ijc at hellion.org.uk> wrote: > On Sun, 2014-09-07 at 13:42 +0200, John Keates wrote: > > 1. Rebuild the debian package with a small change > > > > Do your usual apt-sourcing and build-depping, but add the pep target to debian/rules: > > > > (I put it right underneath include debian/rules.defs) > >

close 703586 4.4.1-3 On Sun, Sep 14, 2014 at 04:55:41PM +0100, Ian Campbell wrote: > On Sat, 2014-09-13 at 17:00 +0200, John Keates wrote: > > But having xen.efi in the package would be a ton of help already. Who > > do I stalk to make that happen? > > I'm looking into it already because of this bug. This was done in 4.4.1-3, hence closing. Ian.

On Sat, 2014-09-13 at 17:00 +0200, John Keates wrote: > 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. >

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

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

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

On Mon, Mar 16, 2015 at 9:03 AM, Ady via Syslinux <syslinux at zytor.com> wrote: Hi Ady, > please next time use "Reply All" (instead of the simple "Reply") for the mailing list emails ... Sorry about that. Please add my reply to the list for me. Thanks. > Is this "ArchLinux" entry equivalent to "\EFI\syslinux\syslinux.efi" > in your UEFI

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 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

> > Is this "ArchLinux" entry equivalent to "\EFI\syslinux\syslinux.efi" > > in your UEFI firmware? > > Note: UEFI firmware is supposed to use (or show) backslash "\" as path > > separator. > > You have a great point there. > I redid the "efibootmgr" installation and instead of > > efibootmgr -c -d /dev/sdd -p 1 -l

I?m so sorry for mailing in a bunch of times, I now see that this is for a different version. The UEFI bug is still valid, but the fix is only for Jessie (Xen 4.4+). Earlier Xen versions have no official EFI patches or support. Sorry! I should probably find the bug report for Jessie + Xen 4.4 where the default setup with EFI and Xen is still broken? It also requires a relatively new kernel (I?m

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.

Trying to set up UEFI Syslinux boot on an ArchLinux USB 4GB stick. - Host system: 64-bit Ubuntu 14.10 on 56 GB hard drive - Hardware: ASUS P8H77-I, Bios v1101, i7-3770 at 3.40 GHz, 16 GB DDR3 - ArchLinux Instructions followed: https://wiki.archlinux.org/index.php/Syslinux#UEFI_Systems > ? ? 2. UEFI Systems > 2.2 Installation - Arch syslinux v.6.03 196352 Oct 13 22:25 /usr/sbin/syslinux

http://pastebin.com/raw.php?i=rykHdvBh bix.hu and www.yahoo.com are "pingable" test sites. 127.0.0.1 could not be pinged [firewall drops all icmp] i have a "oneliner" that echoes if theres "internet connection or no". $ ping -W 1 -c 2 bix.hu &gt;&amp; /dev/null &amp;&amp; ping -W 1 -c 2 www.yahoo.com &gt;&amp; /dev/null &amp;&amp;

@Alex, please next time use "Reply All" (instead of the simple "Reply") for the mailing list emails; that way the emails will get to the Syslinux Mailing List (instead of arriving to particular members). Now, to the matter in question... (snip) > > Just a minor detail (but it helps for understanding each other)... > > You probably mean "in UEFI

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

I installed my first UEFI disk yesterday. Seemed to go fine. CentOS 7.6 x86_64 I then took that disk "out" of that machine and put it another machine - it seems to not even boot. I put the original disk back in that machine and it boots fine. I put the UEFI disk back in the machine I built it on and it works fine. They are similar machines either and i3 and i7. Shouldn't that work?