Re: Contents of CentOS-virt digest...
Best regards,
Bob Vargas
On Sat, Nov 28, 2015 at 7:00 AM, <centos-virt-request at centos.org>
wrote:
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> Today's Topics:
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> 1. new install of Xen 4.6 hangs on Loading initial ramdisk
> (Craig Thompson)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 27 Nov 2015 18:18:05 -0500
> From: Craig Thompson <president at caldwellglobal.com>
> To: centos-virt at centos.org
> Subject: [CentOS-virt] new install of Xen 4.6 hangs on Loading initial
> ramdisk
> Message-ID: <0229360F-F45E-4C83-9CB8-4FE9BB79B306 at
caldwellglobal.com>
> Content-Type: text/plain; charset="windows-1252"
>
> First post to this list. I would appreciate some help on this issue.
>
> As background, I installed CentOS 7 on a Dell server, and then ran the
> following commands:
>
> yum update
>
http://buildlogs.centos.org/centos/7/virt/x86_64/xen/centos-release-xen-7-11.el7.x86_64.rpm
> yum --enablerepo=centos-virt-xen-testing update
> yum --enablerepo=centos-virt-xen-testing install xen
>
> 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.
>
> 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:
>
> Loading Xen 4.6.0-2.el7 ?
> Loading Linux 3.18.21-16.el7.x86_64 ?
> Loading initial ramdisk ?
>
> 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.
>
> My grub.cfg file has these entries of note:
>
> 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}
> echo 'Loading Linux 3.18.21-16.el7.x86_64 ...'
> 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
> echo 'Loading initial ramdisk ...'
> module --nounzip /initramfs-3.18.21-16.el7.x86_64.img
>
>
> What I have tried:
>
> 1) adding debug into the vmlinuz line
> 2) disabling ipv6 in that line
> 3) adding root=UUID=9dc18146-f9b3-41cc-ba9c-7314689abcde to the last line
> AFTER /initramfs ?.
>
> Nothing so far has made any difference. Obviously the process works, as
> it works for me just fine on the Dell server.
>
> 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.
>
> Any help would be appreciated.
>
> --
> Craig Thompson, President
> Caldwell Global Communications, Inc.
> 423-559-5465
>
>
>
>
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> End of CentOS-virt Digest, Vol 99, Issue 17
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