Xen Error Invalid Mode
Note, in this case, the VM is restarting every 4.2 seconds -- long enough to get console output. For one thing, it means that all commands that can take a name or id, such as xm console, will no longer recognize names. A look at the boot output confirms this, with the messages: XENBUS: Device with no driver: device/vbd/769 XENBUS: Device with no driver: device/vbd/770 XENBUS: Device with no driver: device/vif/0 Nearly all Register If you are a new customer, register now for access to product evaluations and purchasing capabilities. have a peek at this web-site
If you have any questions, please contact customer service. You may also see a giant message at boot, reminding you to address this issue. This will let you see somewhat more information than simply following the logs. Although it might seem that copious debugging output would cause a performance hit, in our experience it's negligible when running Xen normally.
Retrieved from "http://wiki.prgmr.com/mediawiki/index.php?title=Troubleshooting&oldid=3223" Navigation menu Views Page Discussion View source History Personal tools Log in Navigation more about prgmr.com Low-cost Xen VPS service Recent changes all pages Help Search Tools There are a number of scripts and systems working together, and it's important to decompose problems and isolate them to the appropriate component. When I run xmcreate winxp.cfg, I got the message "Error: Invalid mode".
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- Backend device not found.
- However, if you have problems, here are some general guidelines.
- Xen › Xen - User Search everywhere only in this topic Advanced Search Error:invalid mode Classic List Threaded ♦ ♦ Locked 4 messages benjamin henrion-2 Reply | Threaded Open this post
cassano NextbyThread: [Xen-users] CFP: VTDC-09: 3rd International Workshop on Virtualization Technologies in Distributed Computing, Ming Zhao Indexes: [Date] [Thread] [Top] [AllLists] Copyright ©, Citrix Systems Inc. And who can say that they are wrong? Note: WARNING is only one point along the continuum of messages. Most of its interaction with linux's hotplug subsystem gets logged in /var/log/xen/xen-hotplug.log. [note: We're going to treat "hotplug" as synonymous with "udev," since we can't think of any system that still
How can I fix this?deb0:~# xm create -c winxp.cfgUsing config file "/etc/xen/winxp.cfg".Error: Invalid modeI have attached xend.log; xen-hotplug.log is empty and xend-debug.loghas only info about dhcp. This time, installed a freshdebian-amd64 stable version (see dpkg-l attached). Domain stays in blocked state Usually, we find that this problem is related to the console -- for example: [[email protected] ~]# xm create -c sebastian.cfg Using config file "/etc/xen/sebastian.cfg". If the box reboots before you can see the panic message on your console, and serial isn't an option, you can try adding panic=0 to the module line that specifies your
Shut down all domains that use loop devices (and detach loops from the dom0) and then run: rmmod loop insmod loop If the loop driver is built into the kernel, you A debug build gives you the option of running Xen with excessive debugging output, but it performs about as well as a normal build when you're not using that mode. It appears to mean that there is a syntax error in the "disk = ['file:...,w'] statement. "rw" instead of just "w" is said to cause it, an extra comma, or in Important dates: ---------------- * Submission deadline: February 20th, 2009 * Notification of acceptance: March 23rd, 2009 * Final manuscripts due: April 6, 2009 * Workshop: June 15, 2009 Topics: ------ Authors
Just as you've got your shell executable path, manpath, library path, and so forth, python has its own internal search path that it examines for modules. This can lead to trouble when attempting to use the semantically more correct xvd* devices. These go through the rules in /etc/udev/rules.d/xen-backend.rules, which executes appropriate scripts in /etc/xen/scripts. Home Products Support Community News xen-users [Top] [AllLists]
Messages at this level are are supposed to be interesting or useful to the administrator, but not indicative of a problem. Martins Rosa Indexes: [Date] [Thread] [Top] [AllLists] Copyright ©, Citrix Systems Inc. Creating domains in low-memory conditions This is one of the most informative error messages in Xen's arsenal. I am sure Xenserver (from Citrix) does not work (it works only with Citrix Provisioning).
DEBUG (DevController:539) hotplugStatusCallback /local/domain/0/backend/vkbd/4/0/hotplug-status In this case, however, these messages turned out to be a red herring. You may also have trouble getting antispoof to work. Everything will continue to function as expected.
The processor simply runs on its factory-installed microcode.) Note: Like the kernel, Xen retains only a fixed-size message buffer.
Traceback (most recent call last): File "/usr/bin/pygrub", line 26, in? Xen's backend architecture -- making sense of the debug info Of course, all this debugging output is more useful with some idea how Xen is structured. If you don't specify the MAC address, it's randomly generated every time the DomU boots, which causes huge problems if your DomU OS has locked down ethX to a particular mac If you find that the error messages are unhelpful, it might be a good idea to make sure that you have all the the debugging knobs set to "full." See Chapter
Many Thanks & Regards Igna Regards, Thomas _______________________________________________ Xen-users mailing list [email protected] http://lists.xensource.com/xen-users ----- Fine del messaggio da [email protected] ----- _______________________________________________ Xen-users mailing list [email protected] http://lists.xensource.com/xen-users Previous Message by Thread: [Xen-users] So, if you want to add all of these options at once, your /boot/grub/menu.lst entry for Xen will look something like this: root hd0(0) kernel /boot/xen-3.0.gz module /boot/vmlinuz-2.6-xen ignorebiostables acpi=off noapic It seems in the recent version of xen "rw" is not supported anymore. I am posting this, so that a search will catch it to the help of those who stumble on it like I did.
So, let's look at the various logs that Xen uses, and what we can do with them. It's often useful, but generates a lot of data to wade through. Could you please post your bridge-config. Martins Rosa Reply | Threaded Open this post in threaded view ♦ ♦ | Report Content as Inappropriate ♦ ♦ RES: Error:invalid mode Try without -c De: [hidden email]
The default loop driver only creates 7 of the things -- barely enough for three domains with root and swap devices. Usually these are in response to an attempt to do something, like start xend or create a domain. We suggest making sure that the names are short -- 8 characters or less. Thankfully, this is no longer the case.] Enable it with: # export XEND_DEBUG=1 # export XEND_DAEMONIZE=0 # xend start This will start xend in the foreground and tell it to print
Use strace or pdb to track the flow of execution in the more Xen-specific bits and see what's failing. Open Source Communities Subscriptions Downloads Support Cases Account Back Log In Register Red Hat Account Number: Account Details Newsletter and Contact Preferences User Management Account Maintenance My Profile Notifications Help Log If the problem generates an error message, use that as a starting point.
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