Re: [CentOS] Xen hypervisor on CentOS 7.4 with modern UEFI server not booting from grub

2018-01-31 Thread John Naggets
Hi Chris, For completeness just wanted to mention that it is the first time I see in newer servers that it is not possible to PXE boot from the network using legacy mode (BIOS). It seems like the NICs are missing the required piece of code for that as all 4 NICs of that server fail to boot legacy

Re: [CentOS] best centos server setup for graphics intensive kvm vms?

2018-01-31 Thread Morgan Read
Nux, thanks for you help. I've been following and adapting this guide as necessary: http://kodi.wiki/view/HOW-TO:Install_Kodi_on_Fedora_25_using_RPMFusion_packages Until the point where it says to install kodi... There is no kodi in RPMFusion repo for Centos, only Fedora... But, I see that you

Re: [CentOS] How is initrd.img packed and compressed?

2018-01-31 Thread Mircea Husz
On Wed, 2018-01-31 at 19:46 +, James Pearson wrote: > Mircea Husz wrote: > > In order to work around a known upstream bug I needed to add a udev > > rule to pxeboot initrd.img on CentOS 7. > > > > The process is straightforward: > > 1 - extract the pxeboot initrd.img to a new directory > > 2

Re: [CentOS] Xen hypervisor on CentOS 7.4 with modern UEFI server not booting from grub

2018-01-31 Thread Chris Adams
Once upon a time, John Naggets said: > Jonathan brings it exactly to the point: we have to face UEFI because > legacy mode is fading out, if I enable legacy mode I can't even boot > anymore through the network (PXE) as these newer network cards can > only boot PXE with UEFI. UEFI PXE is different

Re: [CentOS] How is initrd.img packed and compressed?

2018-01-31 Thread James Pearson
Mircea Husz wrote: > > In order to work around a known upstream bug I needed to add a udev > rule to pxeboot initrd.img on CentOS 7. > > The process is straightforward: > 1 - extract the pxeboot initrd.img to a new directory > 2 - add the udev rule needed to fix the bug > 3 - pack and compress it

Re: [CentOS] How is initrd.img packed and compressed?

2018-01-31 Thread Mircea Husz
I have already tried, without --format=lzma it fails to boot. -Mike On Wed, 2018-01-31 at 17:10 +, Nux! wrote: > Don't archive as lzma if you don't want lzma, remove the " > --format=lzma" parameter. > > hth > Lucian > > -- > Sent from the Delta quadrant using Borg technology! > > Nux! > ww

Re: [CentOS] Xen hypervisor on CentOS 7.4 with modern UEFI server not booting from grub

2018-01-31 Thread John Naggets
I checked and secure boot is turned off. Jonathan brings it exactly to the point: we have to face UEFI because legacy mode is fading out, if I enable legacy mode I can't even boot anymore through the network (PXE) as these newer network cards can only boot PXE with UEFI. In the mean time I have i

Re: [CentOS] How is initrd.img packed and compressed?

2018-01-31 Thread Nux!
Don't archive as lzma if you don't want lzma, remove the "--format=lzma" parameter. hth Lucian -- Sent from the Delta quadrant using Borg technology! Nux! www.nux.ro - Original Message - > From: "Mircea Husz" > To: "CentOS mailing list" > Sent: Wednesday, 31 January, 2018 16:51:20 >

Re: [CentOS] systemd-udevd not applying ATTR to block device at boot

2018-01-31 Thread Nick . Jacques
I suppose it would help if I posted relevant version info (sorry about that...) CentOS Linux release 7.4.1708 (Core) @ 3.10.0-693.11.6.el7.x86_64 systemd-219-42.el7_4.4.x86_64 $ modinfo virtio_scsi filename: /lib/modules/3.10.0-693.11.6.el7.x86_64/kernel/drivers/scsi/virtio_scsi.ko.xz lice

[CentOS] How is initrd.img packed and compressed?

2018-01-31 Thread Mircea Husz
Hi, In order to work around a known upstream bug I needed to add a udev rule to pxeboot initrd.img on CentOS 7. The process is straightforward: 1 - extract the pxeboot initrd.img to a new directory 2 - add the udev rule needed to fix the bug 3 - pack and compress it back in initrd.img format Th

[CentOS] What is best way of managing isolated network environment?

2018-01-31 Thread Xinhuan Zheng
Hello, We need to manage isolated network environment so that even though host name and ip address could be same, but they are located in isolated network environment so that’s not a problem. However, that would be very challenging to build a server in such an isolated environment. For example,

Re: [CentOS] CentOS-announce Digest, Vol 155, Issue 8

2018-01-31 Thread James Pearson
centos-announce-requ...@centos.org wrote: > > Message: 9 > Date: Wed, 31 Jan 2018 11:35:03 + > From: Johnny Hughes > To: centos-annou...@centos.org > Subject: [CentOS-announce] CESA-2018:0169 Important CentOS 6 kernel > SecurityUpdate > Message-ID: <20180131113503.ga9...@n04.

Re: [CentOS] Xen hypervisor on CentOS 7.4 with modern UEFI server not booting from grub

2018-01-31 Thread Jonathan Billings
On Tue, Jan 30, 2018 at 11:51:48PM +, Mikhail Utin wrote: > Why do you need UEFI? It does not add to security "a lot" but was > designed to block booting software like a "hypervisor". I used my > Dell notebooks to test our hypervisor identification software > (HyperCatcher if you are interested

Re: [CentOS] Xen hypervisor on CentOS 7.4 with modern UEFI server not booting from grub

2018-01-31 Thread Johnny Hughes
On 01/30/2018 04:23 PM, John Naggets wrote: > Hi, > > I installed CentOS 7.4 on a modern Lenovo ThinkSystem SR630 server > which uses UEFI. So far so good CentOS 7.4 works fine so then I went > on to install the Xen hypervisor by following the instructions from > the wiki (https://wiki.centos.org/

[CentOS] CentOS-announce Digest, Vol 155, Issue 8

2018-01-31 Thread centos-announce-request
Send CentOS-announce mailing list submissions to centos-annou...@centos.org To subscribe or unsubscribe via the World Wide Web, visit https://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-requ.