vif0.0
What argument do I use to have the virt use peth0?
Like on virt-manager Network options, which doesn't show peth0.
peth0 is a member of the xenbr0 bridge, so use that one.
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/x86_64 -b peth0
[...]
peth0 is there:
``-b'' is for a bridge interface. pethX is not usually a bridge. Try ``brctl
show''.
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check the output. You may get X11 authentication errors, but probably only if
you're not running as root locally.
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?
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the
packages to fix any possible bug, but I still have the same problem.
I checked the time on the host server and it has the current time and
my other,
Have you ever had the same problem?
Do you use NTP correctly? Is localtime set correctly?
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like this will help you/us because the world will be smarter.
It's 2010. That's not a valid excuse anymore.
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to complain that someone was rude,
STFU. In the meantime, maybe you should join a Ruby dev list with all of your
happiness and smiles. Together, you can change the world!
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to find this.
*ooh*
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to the /etc/xen/blah.cfg file?
If you mean before kickstart is even run:
extra = text ks=http://192.168.1.120/dns1-ks.cfg;
extra = ... ip=...
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- Gilberto Nunes gilberto.nune...@gmail.com wrote:
Yes
Tks
Did you upgrade and then downgrade on the same machine it's not working
properly on or are they different physical machines?
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of VM:
Did you verify that Xen has those 4 CPUs assigned to the guest? Did you install
Windows with SMP support or add SMP support after you added more CPUs?
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that comes stock with CentOS?
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and mucking around with the xen
configuration to see if anything changes? Did you update anything else on the
machine, like perhaps the BIOS? Can you mount the VM's filesystem? Is its
partition table okay? How about the boot loader?
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xenconsole: Could not read tty from store: No such file or directory
Is there anything interesting in that run's qemu log?
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[serial] console? Does the dom0 ever unpause the guest? (It should say in the
logs.)
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an uncommon workload, or VM configuration, at all.
However, it is an uncommon kernel. Is there any reason that you need to use
that one? Can/Does it work with something more approved?
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it that
way instead of getting your Fedora environment dependencies and building them
on something stable or getting them from EPEL or another repo?
Installing say a Centos kernel on fedora does not look to be an
option.
Yeah, not unless you go back to FC6. :)
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on the crashing.
If your guest's state is corrupted, you can't rely on its behavior. For that
reason, you should set up a watchdog and only rely on the panic behavior as a
preliminary measure.
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is decent and should give you enough ideas on
how to implement one: http://rwmj.wordpress.com/2010/03/03/what-is-a-watchdog/
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4096 Jan 21 14:38 /var/run/libvirt/network
drwxr-xr-x 2 root root 4096 Oct 20 18:50 /var/run/libvirt/qemu
Can someone provide some tips on what else I can check, if this might be
a bug, or point out any mistakes that I might've made? Any help is
appreciated.
SELinux?
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numbers
testing this, or better, real world stats?
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configuration switches. If you can't
afford those, you may want to opt for 2Nx2N bonding-bridging. That would limit
you to probably two 4-1GbE cards per host, just for your SAN, but that's
probably plenty. Don't waste your money on iSCSI adapters. Just get ones with
TOEs.
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more time on KVM dev lists instead of posting here and annoying others
with your butthurt KVM-won't-work posts, as it's not even supported upstream.
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depends on your experience. If you're asking this, something SQL is probably
the easiest. Heck, just do it in bash, cron, and ssh.
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to add the LV as a disk and then mount
the partitions that are created.
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of tapes.
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storage, tapes have a place
in IT.
Yes, archival storage.
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, that's only available with things that are outside of the context of
this list.
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-install but that
did not give me any useful info.
Any ideas how to debug this?
Use the virtual terminals? Boot without graphics? Use the grub command line to
set console to a serial port and connect to that?
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and recover from that image. It's a lot easier.
Anyway, it is probably fine. If it isn't, you can always try pulling each of
the disks or setting it back to use a single disk to try and isolate the
problem.
Also, switch to MD RAID. :)
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. (Hint: use Sysprep.) Besides, reinstalling Windows machines is better
than restoring them since they progressively bit rot.
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- carlopmart carlopm...@gmail.com wrote:
Christopher G. Stach II wrote:
- carlopmart carlopm...@gmail.com wrote:
which is the best form to backup and restore these windows
guests?
Some examples?
Shadow copy and amanda/zmanda.
Do you mean Volume Shadow copy Windows
is the correct command to set bridge interface to vlan?
Add the VLAN interface to a bridge just for that VLAN traffic and then use that
bridge for your guests.
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- Grant McWilliams grantmasterfl...@gmail.com wrote:
On Wed, Dec 2, 2009 at 9:48 PM, Christopher G. Stach II
c...@ldsys.net wrote:
- Grant McWilliams grantmasterfl...@gmail.com wrote:
a RAID 10 (or 0+1) will never reach the write... performance of
a RAID-5.
(*cough
. If you need that
kind of fault tolerance, the performance hit is negligible. On high volume
boxes with low performance requirements, say NLS on an 8-12 bay 2U or 3U
machine, I use RAID 6 with one hot spare.
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the same as MD RAID, but with an extra piece of hardware and extra
logic bits to fail.
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.
Definitely good as long as you have more than one disk in it. :) You want your
disk to time out instead of holding up the array. You usually can't go wrong
with NCQ and TLER. NCQ won't get you much in RAID 1, though. You can turn it
off with the driver in most cases.
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.)
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of the same
revision and firmware version have had portability problems.
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, you can dig up all of the
issues in Red Hat's bugzilla. Here's a recent one that may help you out:
https://bugzilla.redhat.com/show_bug.cgi?id=528053
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anything lingering in /var/lib/xen/save?
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the failure listed below? I've not
yet tried to install F11 x86_64 as a VM on the CentOS 5.4 x86_64
host.
Could be a regression or a new 32-on-64 bug. Does a 64-bit F11 guest work on
the 64-bit host?
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options bond0 mode=balance-rr miimon=100 updelay=1000
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'$1 ~ /^[DRZ]/{print}'
If you have any in D, you can use SysRq-T and/or the pid's wchan in /proc to
figure out what they're doing or dmesg to figure out where they may have barfed.
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-164.6.1.el5xen
for i in /etc/xen/guest[0-9]*; do
cp ${i} ${i}.bak
sed -i '/^ramdisk/cramdisk = /boot/initrd-2.6.18-164.6.1.el5xen-domU.img'
${i}
done
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/fstab /tmp/fstab-domU
mkinitrd -f --fstab=/tmp/fstab-domU --with=xenblk --with=xennet
--preload=xenblk --preload=xennet /boot/initrd-2.6.18-164.6.1.el5xen-domU.img
2.6.18-164.6.1.el5xen
Better luck this time. :)
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in fstab-domU and rerun the mkinitrd command with the fstab
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, that looks okay, too.
Also, should the xen host config file (/etc/xen/guest02) root
parameter point to the dom0 root or the block device for the domU?
The guest's. That is basically what would go on the kernel command line, say,
in grub.conf.
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- Adam adam0...@gmail.com wrote:
There is no need for a second img to use as swap right?
Correct, unless you were in a pinch and strangely needed to add more swap, had
no unallocated space in your image, and couldn't shut down the guest to resize
the image.
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that murders itself when it has no swap.
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or any other HVM guests?
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it manually
with virt-install, also add --cpuset=pcpus to the arguments.
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guest reboots so you will have to key your graphs
with the domain name and not the vif name.
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, it doesn't. To keep downtime minimal, you can shut down the windows
guest, create an LVM snapshot of the guest's LV, boot the guest back up, dd
from the snapshot to a new LV for your backup, remove the snapshot, and then
pvmove. Be patient with pvmove, as it can take a while.
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could be Pause guest and step 4 would then be Resume
guest.
Depending upon how you handle your PVs and VGs in the optional 8 and 9 steps,
you may need to shut down your guest(s). Your desire to have one VG per PV will
probably necessitate that being done eventually.
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and then vgsplit later. I've found that it's
usually worth the extra steps to be able to pvmove.
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rc.sysinit around the dmraid logic and add some
debugging to see what it's doing or not doing.
Have you considered skipping dmraid and just using MD RAID? You would probably
be better off.
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downloading newer BackTrack now).
The root filesystem's LV/device is not writable or your root filesystem is
mounted read-only? If it's the latter, just ``mount -o remount,rw /''.
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devices in dom0. The
metadata should get everything loaded for you out of the initrd, as long as it
has all of the necessary RAID level drivers in it.
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also need to build a new initrd.
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see
the guests' reply packets where you expect them?
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- Karanbir Singh mail-li...@karan.org wrote:
how are you able to add a new disk without a reboot ? or is that
something that works with the xenblock drivers ?
xm block-attach
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are just tagged frames, so
it should work if nothing else is getting in the way. (I don't think you would
want to do this if you consider the security implications, though.)
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physical host's network.
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don't care
if anyone inside shuts down your VMs. syslogd would not help in this case, but
at least SNMP could.
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. This adds risk to stability.
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xenstore, but you may not want to screw around with it. I
figured I'd let you know, anyway.
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- Coert Waagmeester lgro...@waagmeester.co.za wrote:
But I am definitely keeping a lookout for when xenpv comes out for
CentOS
You need the Windows side:
http://wiki.xensource.com/xenwiki/XenWindowsGplPv
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to be 100Mbps. A PV interface will look exactly
like the underlying hardware.
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lazy block allocation option for a target
on something like a SAN/NAS and you would expect some performance degradation
for some writes.)
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software.
It's a really bad idea to allow connections into dom0 from anything other than
an administrative network and for administrative purposes. RDP is generally a
better solution than anything else, anyway.
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to
prevent automatic updates from breaking anything.
IIRC, that Java problem was fixed, anyway.
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- James Roman james_ro...@ssaihq.com wrote:
Christopher G. Stach II wrote:
- James Roman james_ro...@ssaihq.com wrote:
I have a DomU running Windows 2003 server that occasionally blue
screens
(or at least I assume it does). Obviously, when it does, I lose the
ability
location that can be viewed if the system
dies?
Just read the Windows event log and/or crash dump.
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is tuned properly, either.
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=.*/#/' /etc/sysconfig/xendomains
sed -i '/^#XENDOMAINS_SAVE=/a \XENDOMAINS_SAVE=' /etc/sysconfig/xendomains
rm -f /etc/libvirt/qemu/networks/autostart/default.xml
mkdir /root/.ssh
cat _EOF_ /root/.ssh/authorized_keys
command=/usr/bin/virt-manager ssh-rsa xxx xxx
_EOF_
%end
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, or is it just cosmetic and a non-issue?
For completeness, and I'd also like to bump it up to 1000Mb/s or
higher
if I can, how would I go about finding out it's speed and changing
it?
You don't. It's not a real interface.
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update /boot/grub/grub.conf.
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. :-)
... or just use vif-script vif-nat in xend-config.sxp.
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. Instead of
relocation, is migration possible in this case which can result in Zero down
time?
If you're using the xendomains init script, you can set
XENDOMAINS_MIGRATE in /etc/sysconfig/xendomains.
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this?
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Christopher G. Stach II wrote:
Joseph L. Casale wrote:
I want the other nic to be in a bridge, but not have any ip or
connectivity outside the bridge especially to the host. It will plug
into a DSL modem and a vif associated to this bridge will be the red
interface on a Linux firewall (Lab
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