xen June 2006

xen@lists.fedoraproject.org

61 participants
68 discussions

initscripts, xen and bonding
by Axel Thimm 04 Mar '07

04 Mar '07

Hi, I'm having a hard time getting bonding to work on FC5t3. It looks like the bond0 interface bond0 is renamed to pbond0 by xen [*] and the enslaving does not work anymore then. It works if I log on the terminal and ifenslave the devices to pbond0 instead of bond0 after the boot process has finished. But I want this to be handled automatically during reboots, so I tried assigning the bonding slaves to pbond0 as a master in the ifcfg-eth{0,1} scripts, but that doesn't work. What is causing the bond0 rename and should this renaming be considered by initscript? Is this a user error or should I file this against bugzilla? xen or initscripts? Thanks! [*] The only reference I found was a Japanese site and google's translation of it. http://translate.google.com/translate?hl=en&sl=ja&u=http://hoop.euqset.org/… -- Axel.Thimm at ATrpms.net

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Simple testing results for Xen and VMX on FC5-test2.
by You, Yongkang 12 Jan '07

12 Jan '07

Hi all, I have done a simple checking for Xen and VMX on FC5-test2. Basically, I can create VMX on FC5-test2 IA32. But FC5-test2 IA32e (x86-64) doesn't provide Xen and Xen0 kernel, so didn't do Xen and VMX testing for it. Beside of testing Xen and VMX, I also found some issues about installation, which I have updated the bug #179078 as a NB. The following is the testing results only for Xen and VMX. ========================= 1. *** IA32E hasn't RPMS about Xen hypervisor and Xen0/XenU kernels. __FAIL__ 2. *** In order to boot up IA32 Xen0, I have to add pci=noacpi as the boot parameters of Xen0 kernel, or system will hang when initial PCI. I don't know if it is only related to my Machine. __FAIL__ 3. After install IA32 Xen RPMs, I can see /boot/grub/grub.conf has been changed with Xen kernels. __PASS__ 4. *** /usr/lib/xen/boot/vmxloader isn't in the RPM package, so VMX Guest couldn't be created. I suspected build system hasn't bcc, it is from DEV86 package. __FAIL__ 5. After copy a useable vmxloader to the destination, IA32 VMX Guest can be created successfully! __PASS__ 6. VMX has good network connection and Xwindows started. __PASS__ 7. XenU can be created and works well. __PASS__ 8. Couldn't get Xen Changeset by "xm info" or "xm dmesg". 9. The new kernel names of Xen/Xen0/XenU seemed a little confused. E.g. the Xen0 name is like vmlinuz-2.6.15-1.29_FC5hypervisor. I thought hypervisor is for Xen.gz. Xen0 is the Service OS. ========================== Any comments please let me know. But I will have 8 days holiday from tomorrow, so emails reply might be slow and occasional. [FYI] We are planning to do more testing for FC5-test3. Best Regards, Yongkang (Kangkang) 永康

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Heads-up: Requiring PAE for running Xen
by Jeremy Katz 31 Jul '06

31 Jul '06

As we move forward with Xen enablement, there's a desire for being able to access more than 4 gigs of RAM on 32-bit Xen hosts. The options for handling this are 1) Another kernel. This is bad due to a) we're running out of CD space already b) keeping things matched up between the HV and the guest kernels c) migration is worlds of pain with two types of kernels 2) Switch the 32-bit xen kernels to require PAE. For most "current" non-laptop hardware, this is a non-issue. It does mean that xen won't work a lot of earlier PentiumM laptops 3) Do nothing, tell people to use 64bit if they want more than 4 gigs of RAM 4) Make the PAE code handled at runtime. This is a pretty non-trivial amount of work :) Given these, we're looking at going with #2 and thus only having Xen work on PAE-capable hardware in the development tree. And we're planning to try to execute this switchover the beginning of next week. Note that this will not affect bare metal installs at all. Jeremy

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[RFC 0/3] Fedora patches to enable Xen on ia64
by Aron Griffis 06 Jul '06

06 Jul '06

The following patches enable Xen support in Fedora on ia64. I'm not asking for these to be applied directly because of some issues that are called out in the kernel patch. However I would appreciate comments so that these can be applied when the issue are resolved. In addition to these patches, the elilo-multiboot patches are required, which can be found starting at https://www.redhat.com/archives/fedora-xen/2006-June/msg00068.html The result of all these patches can be found in my yum repository, see https://www.redhat.com/archives/fedora-xen/2006-May/msg00140.html Regards, Aron

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Xen/libVirt GUI app: "Virtual Machine Manager"
by Daniel P. Berrange 30 Jun '06

30 Jun '06

I'm pleased to make available the code for an early *development snapshot* of a graphical application for managing virtual machines. This application is using libvirt as its backend API for managing virtual machines, while the user interface is built in Python and GTK/Glade. The application allows monitoring of guest VM resource utilization / allocation. There are basic controls for controlling the run state of guest. There is also a VNC client widget (written in pure Python!) for displaying the virtual guest framebuffer on fully-virt machines: http://people.redhat.com/berrange/virt-manager/index.html This is a very early snapshot - lots of functionality isn't hooked up yet, the error handling is mostly not there, and there are certainly plenty of bugs. It should none-the-less give a reasonable feel for the kind of direction the application will evolve in. Furthermore the website includes the UI mockups done by our user interaction designers to show some of the ideas considered in ongoing development of the application. The RPMs linked to from the website should install on both Fedora Core 5[1] and Fedora Core 6 test1 [2]. The FAQ contains a list of explicit dependancies which should facilitate people trying to get it running on non Fedora Linux distros. BTW, for those at the Red Hat Summit in Nashville a few weeks back, this is the graphical app I talked about in my presentation on management tools for virtualized system[3] & showed some demos of. At the time I was calling it 'GNOME Virt Manager', but is now renamed 'Virtual Machine Manager' or 'virt-manager' for the binary command / package name. Regards, Dan. [1] You'll need libvirt-0.1.1 from updates-testing [2] The plan is to get the RPMs into Fedora Extras in time for FC6 [3] http://people.redhat.com/berrange/summit-2006/ -- |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| |=- Perl modules: http://search.cpan.org/~danberr/ -=| |=- Projects: http://freshmeat.net/~danielpb/ -=| |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|

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Cannot boot HVM guests on FC6 Test1
by Zhao, Yunfeng 30 Jun '06

30 Jun '06

I could not boot HVM guest on FC6 Test1 IA32. After executed xm create,no qemu window popup. And xm list shows the guest blocked. I submitted a bug for this issue: http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=197350 On FC6 Test1 IA32e: I cannot boot FC6 Test1 IA32e in runlevel 5. and in runlevel 3 I cannot start xend. Thanks Yunfeng

1 0

Checkpointing
by Chris Vaughan 29 Jun '06

29 Jun '06

Hi, Is there any way you can save a xen domain without suspending it or stopping it? I want to set up something so if my xen session crashes I can fire up another xen session from the save file that I created 5 minutes before the crash and hopefully minimize downtime. Thanks -- ------------------------------ Christopher Vaughan

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[PATCH 0 of 6] elilo multiboot support (take 2)
by Aron Griffis 29 Jun '06

29 Jun '06

The following patches give grubby the ability to manipulate multiboot-capable elilo.conf. Fedora's elilo already contains the support, these patches simply teach grubby to take advantage of it. These patches are an enabler for using Xen on ia64 with Fedora. This is a resend, with improvements, of the patches sent earlier. See https://www.redhat.com/archives/fedora-xen/2006-June/msg00068.html The improvements include: - general test suite improvements - grubby builds with each patch in succession - updates to the test suite for elilo multiboot - fixes to grubby.c to fix regressions introduced by the previous patches, when I hadn't noticed the existence of the regression test suite... Regards, Aron

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How to use linux-2.6.tip-xen
by Akio Takebe 29 Jun '06

29 Jun '06

Hi, Chris I'm now working on fedora-xen-ia64. Please tell me how to use linux-2.6.tip-xen. I use xen-ia64-unstable.hg and your linux-2.6.tip-xen, and boot dom0/domU/domVTi. I think the usage is the below. 1. hg clone http://xenbits.xensource.com/ext/xen-ia64-unstable.hg or http://xenbits.xensource.com/xen-unstable.hg 2. hg clone http://xenbits.xensource.com/ext/linux-2.6.tip-xen.hg I do patch to linux-2.6.tip-xen with xen-ia64-unstable.hg/patches or xen-unstable.hg/patches. 3. make xen & make tools in xen-ia64-unstable or xen-unstable.hg 4. make in linux-2.6.tip-xen 5. boot dom0 and xen with xen of xen-ia64-unstable & dom0 kernel of linux-2.6.tip-xen 6. boot domU with linux-2.6.tip-xen Am I right? or I need some more patches? Best Regards, Akio Takebe

1 0

2.6.17-1.2139_FC5xen0: No network - no installation
by Mads Kiilerich 28 Jun '06

28 Jun '06

Hi, I'm testing Xen on FC5 x86_64 and have some problems. I had it working when I was running dom0 on "core" packages. But when I install "updates" (and thus uses 2.6.17-1.2139_FC5xen0) it seems like there is no network connection from the installing domU machine to the dom0 machine. The FC installer can't get a connection to the ftp-server running on the dom0 host. No dhcp, no static ip connection, and no virtual network devices can be seen from dom0. I've tried to update my installation image as described on http://fedoraproject.org/wiki/FedoraXenQuickstartFC5 - that didn't solve my problem. I'm installing with e.g.: xenguest-install.py -n test1 -f /tmp/x -r 512 -l ftp://10.0.0.1/pub /etc/xen/test1 contains e.g.: name = "test1" memory = "512" disk = [ 'phy:/dev/VolGroup00/lv_test1,xvda,w' ] vif = [ 'mac=00:16:3e:68:3a:54' ] uuid = "41dc63c6-ba10-8e3b-d475-453677117f8a" bootloader="/usr/bin/pygrub" What am I doing wrong? /Mads

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xen June 2006