<div dir="ltr"><span style="font-size:12.8px">Re: Contents of CentOS-virt digest...</span><br></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature">Best regards,<br><br>Bob Vargas<br></div></div>
<br><div class="gmail_quote">On Sat, Nov 28, 2015 at 7:00 AM, <span dir="ltr"><<a href="mailto:centos-virt-request@centos.org" target="_blank">centos-virt-request@centos.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send CentOS-virt mailing list submissions to<br>
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Today's Topics:<br>
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1. new install of Xen 4.6 hangs on Loading initial ramdisk<br>
(Craig Thompson)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Fri, 27 Nov 2015 18:18:05 -0500<br>
From: Craig Thompson <<a href="mailto:president@caldwellglobal.com">president@caldwellglobal.com</a>><br>
To: <a href="mailto:centos-virt@centos.org">centos-virt@centos.org</a><br>
Subject: [CentOS-virt] new install of Xen 4.6 hangs on Loading initial<br>
ramdisk<br>
Message-ID: <<a href="mailto:0229360F-F45E-4C83-9CB8-4FE9BB79B306@caldwellglobal.com">0229360F-F45E-4C83-9CB8-4FE9BB79B306@caldwellglobal.com</a>><br>
Content-Type: text/plain; charset="windows-1252"<br>
<br>
First post to this list. I would appreciate some help on this issue.<br>
<br>
As background, I installed CentOS 7 on a Dell server, and then ran the following commands:<br>
<br>
yum update <a href="http://buildlogs.centos.org/centos/7/virt/x86_64/xen/centos-release-xen-7-11.el7.x86_64.rpm" rel="noreferrer" target="_blank">http://buildlogs.centos.org/centos/7/virt/x86_64/xen/centos-release-xen-7-11.el7.x86_64.rpm</a><br>
yum --enablerepo=centos-virt-xen-testing update<br>
yum --enablerepo=centos-virt-xen-testing install xen<br>
<br>
Doing that, I was able to successfully install Xen, create a virtual machine with its own HVM setup, logical volume, etc. and boot it just fine.<br>
<br>
I then tried to do the same on an IBM x3550 server I?m trying to install with CentOS 7. The CentOS 7 install went just fine. I can boot into the standard kernel and have a working machine. But after running the commands above to install the Xen hypervisor, the machine hangs on boot for a few moments after displaying the lines below and then reboots in a loop over and over and over:<br>
<br>
Loading Xen 4.6.0-2.el7 ?<br>
Loading Linux 3.18.21-16.el7.x86_64 ?<br>
Loading initial ramdisk ?<br>
<br>
It never gets beyond that. If I choose the stock kernel (no Xen) from the Grub menu, it will continue to boot into that just fine.<br>
<br>
My grub.cfg file has these entries of note:<br>
<br>
multiboot /xen-4.6.0-2.el7.gz placeholder dom0_mem=1024M,max:1024M cpuinfo com1=115200,8n1 console=com1,tty loglvl=all guest_loglvl=all ${xen_rm_opts}<br>
echo 'Loading Linux 3.18.21-16.el7.x86_64 ...'<br>
module /vmlinuz-3.18.21-16.el7.x86_64 placeholder root=UUID=9dc18146-f9b3-41cc-ba9c-7314689abcde ro crashkernel=auto debug irqpoll ipv6.disable=1 console=hvc0 earlyprintk=xen nomodeset<br>
echo 'Loading initial ramdisk ...'<br>
module --nounzip /initramfs-3.18.21-16.el7.x86_64.img<br>
<br>
<br>
What I have tried:<br>
<br>
1) adding debug into the vmlinuz line<br>
2) disabling ipv6 in that line<br>
3) adding root=UUID=9dc18146-f9b3-41cc-ba9c-7314689abcde to the last line AFTER /initramfs ?.<br>
<br>
Nothing so far has made any difference. Obviously the process works, as it works for me just fine on the Dell server.<br>
<br>
Underlying this machine is a SATA RAID 1 PCI card with two SSD drives attached in a RAID 1 mirror. Not that that should matter, but I?m including it for reference. As noted previously, it boots into the stock kernel just fine.<br>
<br>
Any help would be appreciated.<br>
<br>
--<br>
Craig Thompson, President<br>
Caldwell Global Communications, Inc.<br>
423-559-5465<br>
<br>
<br>
<br>
<br>
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End of CentOS-virt Digest, Vol 99, Issue 17<br>
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