similar to: What is the purpose setting console=hvc0 in the dom0 grub config?

On Wed, May 17, 2017 at 2:39 AM, George Dunlap <dunlapg at umich.edu> wrote: > On Wed, May 17, 2017 at 4:26 AM, Jerry <jerryubi at gmail.com> wrote: > > I always disable "rhgb quiet" on a fresh install because I don't like > boot > > messages being hidden from me, and now this other thing does it. I like > > details, I need the details, don't

On Wed, May 17, 2017 at 8:44 AM, George Dunlap <dunlapg at umich.edu> wrote: > On Wed, May 17, 2017 at 4:20 PM, Jerry <jerryubi at gmail.com> wrote: > > This is what's defined in /etc/default/grub following the install of the > > Xen: > > > > GRUB_CMDLINE_XEN_DEFAULT="dom0_mem=1024M,max:1024M cpuinfo > com1=115200,8n1 > > console=com1,tty

Jerry, Refer to console=hvc0 from (https://wiki.xen.org/wiki/Xen_FAQ_Console)which is dedicated for domO after Xen kernel loaded, so if it hangs it means somewhere the booting process with xen is not right. Suggest you to close look at the dmsg or log for debugging. Hope that helps and cheers. Xlord On Wed, May 17, 2017 at 11:26 AM, Jerry <jerryubi at gmail.com> wrote: > Howdy, >

On Tue, May 16, 2017 at 10:26 PM, Jerry <jerryubi at gmail.com> wrote: > Howdy, > > I recently went through a frustrating experience trying to get Xen 4 > running on a CentOS 7 system. After a fresh install, fully updating the > system, rebooting, then trying to install Xen4CentOS it would fail to boot > into the 4.9 kernel, sitting there with a blinking cursor

On Wed, 17 May 2017 14:09:57 -0700 Jerry <jerryubi at gmail.com> wrote: > Setting both hvc0 and tty is working as desired. Thanks again to everyone > that replied. I'm updating my kickstart script to include adding > console=tty in addition to the other. Should it be set by default then? Regards, Nerijus

On Wed, May 17, 2017 at 4:26 AM, Jerry <jerryubi at gmail.com> wrote: > Howdy, > > I recently went through a frustrating experience trying to get Xen 4 running > on a CentOS 7 system. After a fresh install, fully updating the system, > rebooting, then trying to install Xen4CentOS it would fail to boot into the > 4.9 kernel, sitting there with a blinking cursor

> This is what's defined in /etc/default/grub following the install of the > Xen: > > GRUB_CMDLINE_XEN_DEFAULT="dom0_mem=1024M,max:1024M cpuinfo com1=115200,8n1 > console=com1,tty loglvl=all guest_loglvl=all" > GRUB_CMDLINE_LINUX_XEN_REPLACE_DEFAULT="console=hvc0 earlyprintk=xen > nomodeset" > > I didn't set these myself, this is what the

On Wed, May 17, 2017 at 4:20 PM, Jerry <jerryubi at gmail.com> wrote: > On Wed, May 17, 2017 at 2:39 AM, George Dunlap <dunlapg at umich.edu> wrote: >> >> On Wed, May 17, 2017 at 4:26 AM, Jerry <jerryubi at gmail.com> wrote: >> > I always disable "rhgb quiet" on a fresh install because I don't like >> > boot >> > messages

On Wed, May 17, 2017 at 8:54 AM, Jerry <jerryubi at gmail.com> wrote: > > > On Wed, May 17, 2017 at 8:44 AM, George Dunlap <dunlapg at umich.edu> wrote: > >> On Wed, May 17, 2017 at 4:20 PM, Jerry <jerryubi at gmail.com> wrote: >> > This is what's defined in /etc/default/grub following the install of the >> > Xen: >> > >>

Dear All I am using Centos 7 with Xen 4.6 on a Dell Poweredge T430 When the machine boots, after the 'Scrubbing Free RAM' message, I get a screen filled with little white squares until the login prompt, so I cannot see what is happening as the machine boots. Also there is nothing on the screen when I reboot. My /etc/default/grub is GRUB_DISTRIBUTOR="$(sed 's, release

Dear George, Thanks for the input and ideas. Unfortunately bootscrub=false dos not work, not does setting nothing for vga, still get the 'Little white squares'! I am asking the xen-users as you suggest Regards, Francis From: "George Dunlap" <dunlapg at umich.edu> To: "Francis Greaves" <francis at choughs.net>, "centos-virt" <centos-virt

On Wed, May 17, 2017 at 8:25 AM, Konrad Rzeszutek Wilk < konrad.wilk at oracle.com> wrote: > > This is what's defined in /etc/default/grub following the install of the > > Xen: > > > > GRUB_CMDLINE_XEN_DEFAULT="dom0_mem=1024M,max:1024M cpuinfo > com1=115200,8n1 > > console=com1,tty loglvl=all guest_loglvl=all" > >

Yes I usually work headless, but I have been setting it up from new, so need to see what is going on. Regards Francis From: "Scot P. Floess" <sfloess at nc.rr.com> To: "Francis Greaves" <francis at choughs.net> Cc: "centos-virt" <centos-virt at centos.org> Sent: Monday, 22 February, 2016 17:02:12 Subject: Re: [CentOS-virt] Garbled screen

Steffan A. Cline wrote: > I?ve looked and looked and can?t seem to find anything which would > explain why grub.cfg would have been rewritten with a whole new volume > group name. > > Suggestions? > C6 or C7? In either case, have you looked in /etc/default/grub? mark

Hi Everyone, In the guest image I download from stacklet, a Ubuntu 10.04 x86_64 DomU, in /var/log/auth.log, I see: /dev/hvc0: No such file or directory listed a lot of times. I''m not experiencing any problems, however it makes looking through logs for auditing purposes a bit annoying. Any ideas what this is? I think it has something to do with the "Hypervisor Console",

Hi, I''m running Xen 4 on Slack64. I haven''t console login prompt to domU until I changed xvc0 to hvc0 on /etc/inittab file. No I have access to login but whenever I try to login I get this error from /var/adm/secure file root@darkstar:/var/adm# cat secure Apr 28 22:49:22 darkstar login[1286]: ILLEGAL ROOT LOGIN on `hvc0'' Apr 28 22:49:45 darkstar last message repeated

Further to my messages back in May I have at last got round to trying to get my DomU to recognise USB devices. I am using Xen 4.6 with CentOS kernel 3.18.34-20.el7.x86_64. I have to manually make the port available before creating the DomU by issuing the command: xl pci-assignable-add 00:1a.0 otherwise nothing shows in: xl pci-assignable-list I have added this to my .cfg file as per the

Hi folks, we (the company i am working for) are running several dozens of virtualisation servers using CentOS 6 + Xen4CentOS as the virtualisation infrastructure. With the latest versions of all packages installed [1], we see failures in live-migration of stock-CentOS6 HVM guests, leaving a "Domain-unnamed" on the source host, while the migrated guest runs fine on the target host.

Hi everyone, I''ve compiled 3.0.0-rc6 from kernel.org , with all the pv_ops config options set as per the Xen wiki. The kernel boots fine, but not in combination with Xen. All i get is a completely blank screen , and after a minute or so the machine reboots. THe hypervisor seems to work OK with other (non-dom0 , 2.6.32.x) kernels, i can see Xen startup messages, before it finally

Hi, I installed Fedora 10 as domU on CentOS 5.3. I need new 2.6.25.14 kernel under domU (in order to patch it for MPLS protocol). I followed advice on http://wiki.xensource.com/xenwiki/Kernel.org_Linux_on_Xen, and compiled kernel with XEN options enabled under domU. I got all relevant packages in /boot and /lib/modules, but when I try to boot virtual machine I got this error: Error starting