Displaying 20 results from an estimated 30000 matches similar to: "CentOS domU cannot boot up"
2012 Mar 25
1
CentOS-virt Digest, Vol 55, Issue 10
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2012 Mar 07
2
PV DomU stopped responding, won't boot, stuck in paused state
Yesterday, I had a PV OpenSolaris DomU stop responding. I looked on my xen machine and it was in a paused state. I ended up destroying it and then doing xm create to bring it back up.
It won''t boot, and I think PyGrub is hanging. Not sure how to resolve this, there aren''t any errors being presented in xen/xm itself. If I try ''xm create config.conf'' it just
2007 May 02
2
CentOS 4 and CentOS 5 DomU on CentOS 5 Dom0: problems with hand-built OS and LVM
I''ve been running any number of CentOS 4 based Xen hosts and guests
using CentOS 4.4, and the Xen RPM''s from www.xensource.com, and various
hand-built OS images using jailtime and my own own OS images.
I like the jailtime approach:
One partition for / on the DomU, /dev/sda1, built as a local file or
local LVM partition
One partiton for swap on the DomU, /dev/sda2,
2010 Aug 04
7
Xen 4.0.1-rc5 w/ 2.6.32.16 dom0, DomU''s start paused
I run my production DomU''s using Xen 3.4.1 at the moment with the old
2.6.18.x dom0 kernel. I just built a new Xen version (4.0.1-rc5) with
jemerys git repo of 2.6.32.16 dom0 pvops kernel. When starting domains
the go instantly into a paused state and eventually i see this error on
the command line.
[root@host test1]# xm create -c vps.config
Using config file
2010 Dec 03
10
Kernel DomU 2.6.36.1 dont boot PVonHVM
Hi all,
I try to use kernel 2.6.36.1 in HVM but building the drivers xen-blkfront,
xenfs, platform-pci. I used Xen 4.0.2-rc1-pre and a DomU is a ubuntu 10.04
and I try with ubuntu 10.10.
In boot I receive error "Cannot find a root partition /dev/xvda2" and a
prompt (initramfs) appear.
In dmesg (initramfs) appear:
blkfront: xvda: barriers enabled (tag)
xvda: xvda1
vbd vbd-51712: 16
2010 Dec 03
10
Kernel DomU 2.6.36.1 dont boot PVonHVM
Hi all,
I try to use kernel 2.6.36.1 in HVM but building the drivers xen-blkfront,
xenfs, platform-pci. I used Xen 4.0.2-rc1-pre and a DomU is a ubuntu 10.04
and I try with ubuntu 10.10.
In boot I receive error "Cannot find a root partition /dev/xvda2" and a
prompt (initramfs) appear.
In dmesg (initramfs) appear:
blkfront: xvda: barriers enabled (tag)
xvda: xvda1
vbd vbd-51712: 16
2012 Dec 23
7
Unsticking a DomU
I''m not able to start, destroy, or delete a DomU:
> xen1:~ # xm start test4
> Error: Domain is already running
> Usage: xm start <DomainName>
>
> Start a Xend managed domain
> -p, --paused Do not unpause domain after starting it
> -c, --console_autoconnect Connect to the console after the domain
2009 Jun 30
1
CentOS 5.3 DomU guest crashes on first boot
SXCE b116,onnv 3.4
Installation process is fine and smooth,when try to boot for a first time get kernel panic(See screenshot attached).
My conf file is below.
--------------------------------------------------------
import os, re
vif = [ ''type=ioemu, bridge=e1000g0'']
memory=2048
shadow_memory=160
vcpus=1
builder = "hvm"
device_model =
2006 Jun 22
2
VFS: Cannot open root device "sda1" or unknown-block(0, 0) -- in domU
Hello again,
My kernel is correct, and it''s always been correct.
This error only happens if I start two or more VMs in quick sucession. If I
wait a short while (i.e. time to figure out why a VM started then died) and
try again, it''s fine.
For testing purposes I''m using loopback files, 2 for each VM (1 filesystem, 1
swap).
--
Mike Williams
System Administration
2009 Jan 24
8
DomU in it''s own LVM partition fails to boot CentOS 5.2 Dom0/U
I''m trying to do what I think would be relatively simple but can''t seem to
make it work. Essentially I want to create several domU''s running CentOS
each with it''s own LVM partition for increased performance over image files.
Initially I did a test with image files and everything went fine, I booted
the supplied initrd and vmlinuz images installed CentOS from
2010 Mar 14
6
xm mem-set Domain-0 box went poof
On a fresh reboot
free:
total used free shared buffers cached
Mem: 3371340 448156 2923184 0 5328 77840
----------
top:
Mem: 3371340k total, 449044k used, 2922296k free, 5344k buffers
----------
xentop - 01:44:00 Xen 3.4.3-rc4-pre
1 domains: 1 running, 0 blocked, 0 paused, 0 crashed, 0 dying, 0 shutdown
Mem: 4160828k total, 4022996k used, 137832k free CPUs: 4
2010 May 14
6
How to kown the DomU is up
Hi experts,
First I post my log
root@intel_5500_server:/> ifconfig
eth0 Link encap:Ethernet HWaddr 00:15:17:BB:5E:88
inet addr:128.224.165.205 Bcast:128.224.165.255
Mask:255.255.255.0
inet6 addr: fe80::215:17ff:febb:5e88/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2375 errors:0 dropped:0 overruns:0 frame:0
2005 Nov 16
5
sfdisk -g support in DomU
Back in January there was a mail thread on this subject (
http://lists.xensource.com/archives/html/xen-devel/2005-01/msg00659.html
), however I see that blkfront still does not include ioctl support for
disk geometry. So, any application that uses "sfdisk -g" to get the
geometry of a partition, or disk, will fail when run in DomU.
Is this a deliberate omission?
Nick Logan
2009 Jul 01
14
can''t boot 2009.06 domU on Xen 3.4.1 / CentOS 5.3 dom0
I''ve got a CentOS 5.3 dom0 with Xen 3.4.1-rc5 (or so). I''ve tried the same stuff below with 3.4.0, no difference. I''m trying to install 2009.06 PV domU based on instructions from [1] and [2]. I can run the install fine, I can also get the kernel and boot archive (from [2]) after the install. But for the life of me I can''t get the installed domU to boot.
If I
2015 May 28
2
Re: Concurrent scanning of same disk
2015-05-28 10:40 GMT+03:00 Richard W.M. Jones <rjones@redhat.com>:
> On Thu, May 28, 2015 at 10:33:48AM +0300, NoxDaFox wrote:
> > To create the snapshots I'm using the libvirt command snapshotCreateXML
> > with no flag set. Does libvirt support consistent snapshotting or shall I
> > rely on QEMU backup new feature only?
>
> According to:
2009 May 19
4
Bad Disk Performance of domU
Hi list.
Im Running xen on a brand new dell PE 1950 with 146 GB SAS Disk on raid1.
The performance on the I/O on the domU is really poor, but in dom0 the
performance is great.
Any ideas?
Regards
Francisco.
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2012 Apr 04
10
Unable to boot installation ISO
Hi,
I build Xen 4.1.1 on a Gentoo base dom0. Everything is working great. I tried one of Joseph Glanville''s PV-HVM image (debian6) and its working as it should.
Now l''im trying to build a Gentoo based domU with then same specs as Joseph''s PV-HVM.
I used a copy of the .cfg and adapted to my needs to make the gentoo work.
when booting the minimal install image using
2010 Jan 22
1
Just installed DomU won't boot
Hi, I am using Centos 5.4 x86_64 with kernel 2.6.18-164.11.1.el5xen.
I've installed a Centos 5.4 (64 bit too) DomU (paravirtualized),
process was apparently with no problems, but DomU refuses to start,
this the error:
Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/engine.py", line 498, in run_domain
vm.startup()
File
2009 Sep 09
10
OpenSolaris domU on RedHat Linux dom0
Hi,
I''m trying to create OpenSolaris (2008.11) domU on RedHat Linux dom0.
I''m using a file backed VBD. I used the iso image to first launch and
install OpenSolaris into the file VBD. Once that process is complete,
I''m trying to run it using the config file below:
name = ''opensolaris''
vcpus = 1
memory = "512"
vif =
2020 Sep 15
2
CentOS 8 Install as DOMU in PV Environment
All,
I have successfully installed CentOS 7 on a PV environment, and have been trying to see if I can can get a CentOS 8 install running.
Hardware does not support virtualization extensions, hence the PV environment and I cant do HVM for the install then migrate.
My understanding is that PV support is in the kernel, and that the distro of Linux shouldn't technically matter. But currently